feat: release version 1.0.7

2026-08-21 19:06:55 +09:00
parent 5d29b63f3a
commit 71dfe11bc4
406 changed files with 3086 additions and 1172 deletions
@@ -9,6 +9,7 @@ release
 data/*
 !data/.gitkeep
 !data/card-overrides.csv
+!data/score-calibrations.json
 !data/holodoridb/
 !data/holodoridb/**
 data/holodoridb/*.tmp
@@ -0,0 +1,86 @@
+{
+  "schemaVersion": 1,
+  "charts": [
+    {
+      "songId": "m0157",
+      "difficulty": "easy",
+      "scoreRatio": 55.72941713590017,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 5, "normalPerfectScore": 6571 }
+      ]
+    },
+    {
+      "songId": "m0157",
+      "difficulty": "normal",
+      "scoreRatio": 89.51307748716695,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 5, "normalPerfectScore": 4091 }
+      ]
+    },
+    {
+      "songId": "m0157",
+      "difficulty": "hard",
+      "scoreRatio": 159.56339869281047,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 5, "normalPerfectScore": 2295 }
+      ]
+    },
+    {
+      "songId": "m0157",
+      "difficulty": "expert",
+      "scoreRatio": 251.68247422680412,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 5, "normalPerfectScore": 1455 }
+      ]
+    },
+    {
+      "songId": "m0121",
+      "difficulty": "hard",
+      "scoreRatio": 189.63717251606528,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 10, "normalPerfectScore": 2023 }
+      ]
+    },
+    {
+      "songId": "m0121",
+      "difficulty": "expert",
+      "scoreRatio": 318.8994181213633,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 10, "normalPerfectScore": 1203 },
+        { "overallPower": 348760, "directSongScoreBonusPercent": 8.26, "normalPerfectScore": 1184 }
+      ]
+    },
+    {
+      "songId": "m0182",
+      "difficulty": "hard",
+      "scoreRatio": 234.92712798530317,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 10, "normalPerfectScore": 1633 }
+      ]
+    },
+    {
+      "songId": "m0182",
+      "difficulty": "expert",
+      "scoreRatio": 380.5912698412699,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 10, "normalPerfectScore": 1008 }
+      ]
+    },
+    {
+      "songId": "m0201",
+      "difficulty": "expert",
+      "scoreRatio": 208.21492537313435,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 4, "normalPerfectScore": 1742 }
+      ]
+    },
+    {
+      "songId": "m0319",
+      "difficulty": "expert",
+      "scoreRatio": 363.4372745490982,
+      "measurements": [
+        { "overallPower": 348760, "directSongScoreBonusPercent": 4, "normalPerfectScore": 998 }
+      ]
+    }
+  ]
+}
@@ -1,12 +1,12 @@
 {
  "name": "holodream-tools",
-  "version": "1.0.6",
+  "version": "1.0.7",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "holodream-tools",
-      "version": "1.0.6",
+      "version": "1.0.7",
      "dependencies": {
        "better-sqlite3": "^13.0.3",
        "drizzle-orm": "^0.45.2",
@@ -1,6 +1,6 @@
 {
  "name": "holodream-tools",
-  "version": "1.0.6",
+  "version": "1.0.7",
  "private": true,
  "type": "module",
  "engines": {
@@ -18,6 +18,7 @@
    "data:sync": "node scripts/collect-holodoridb.mjs",
    "data:import-songs": "node scripts/import-legacy-song-data.mjs",
    "data:collect-charts": "node scripts/collect-exact-charts.mjs",
+    "data:apply-score-calibrations": "node scripts/apply-score-calibrations.mjs",
    "db:generate": "drizzle-kit generate",
    "db:migrate": "drizzle-kit migrate",
    "db:studio": "drizzle-kit studio"
@@ -0,0 +1,25 @@
+# 홀로도리 계산기 v1.0.7
+
+점수 계산의 근거를 더 명확하게 표시하고, 악곡 선택과 연결 카드 배치를 편리하게 개선한 업데이트입니다.
+
+## 주요 변경 사항
+
+- 배치 분석에 보유 연결 카드 자동 최적화를 추가했습니다. 활성 노드는 유지하면서 액티브 발동률과 예상 점수를 기준으로 배치를 탐색하고, 변경 전후 결과를 비교한 뒤 적용할 수 있습니다.
+- 블루 보드의 상시 액티브 발동률 증가와 스페셜의 시간제 발동률 증가를 합산해 계산하도록 수정했습니다.
+- 복수 기수 소속 카드도 모든 기수 보너스의 합계를 카드별 최대 `900`까지만 적용하도록 수정했습니다.
+- 등록된 실측 자료가 있는 Hard/Expert 채보 8개의 점수 계수를 보정하고, 모든 채보에 점수 계수가 `실측값`인지 `추정값`인지 표시합니다.
+- 악곡을 영문 제목이나 곡 ID로 검색하고 알파벳순 또는 난이도순으로 정렬할 수 있습니다.
+- 모든 Hard/Expert 채보에 난이도 레벨을 추가하고, 가능한 악곡은 공식 영문 제목으로 표시합니다.
+- 카드 49장의 스페셜에서 발동률 증가, 판정 강화 또는 라이프 회복과 같은 추가 효과가 누락되지 않도록 데이터 요약을 수정했습니다.
+- 보드 화면에서 연결 카드의 희귀도를 표시하고 중앙 연결 노드 자동 배치와 초록 노드 효율 목록을 개선했습니다.
+
+## 참고 사항
+
+- 점수 계수가 보정된 채보와 복수 기수 카드의 보드 보너스는 이전 버전과 계산 결과가 달라질 수 있습니다.
+- 현재 실측 점수 계수가 등록된 채보는 일부입니다. 계산 정확도 향상을 위해 대부분의 악곡에서 실측값 제보가 필요합니다.
+- 실측값 제보: `[제보 링크 입력]`
+- 연결 카드 최적화는 결과를 확인한 뒤 적용할 때만 사용자 데이터의 배치를 변경하며, 적용 직후에는 이전 배치로 복원할 수 있습니다.
+
+## 다운로드
+
+Release의 Assets에서 `HolodoriCalc-offline-v1.0.7.zip`을 내려받아 완전히 압축 해제한 뒤 `index.html`을 실행해 주세요. GitHub가 자동으로 제공하는 Source code 압축파일은 실행용 배포본이 아닙니다.
@@ -0,0 +1,31 @@
+import { readFile, writeFile } from 'node:fs/promises';
+import path from 'node:path';
+
+const calibrationPath = path.resolve('data/score-calibrations.json');
+const catalogPath = path.resolve('src/lib/data/exact-chart-catalog.json');
+const chartDirectory = path.resolve('static/data/charts');
+
+const calibrations = JSON.parse(await readFile(calibrationPath, 'utf8'));
+const catalog = JSON.parse(await readFile(catalogPath, 'utf8'));
+const catalogRows = Array.isArray(catalog) ? catalog : catalog.charts;
+
+for (const calibration of calibrations.charts) {
+  const difficulty = calibration.difficulty.toLowerCase();
+  const catalogRow = catalogRows.find((row) =>
+    row.songId === calibration.songId && row.difficulty.toLowerCase() === difficulty
+  );
+
+  // Easy/Normal 실측도 보관하되 현재 생성 대상인 Hard/Expert만 즉시 동기화한다.
+  if (!catalogRow) continue;
+
+  catalogRow.scoreRatio = calibration.scoreRatio;
+  catalogRow.scoreCalibrationSource = 'measured';
+
+  const chartPath = path.join(chartDirectory, `${calibration.songId}.${difficulty}.json`);
+  const chart = JSON.parse(await readFile(chartPath, 'utf8'));
+  chart.scoreRatio = calibration.scoreRatio;
+  chart.scoreCalibrationSource = 'measured';
+  await writeFile(chartPath, `${JSON.stringify(chart)}\n`);
+}
+
+await writeFile(catalogPath, `${JSON.stringify(catalog, null, 2)}\n`);
@@ -6,8 +6,20 @@ const outputDirectory = path.resolve('static/data/charts');
 const catalogPath = path.resolve('src/lib/data/exact-chart-catalog.json');
 const selectedDifficulties = new Set(['HARD', 'EXPERT']);
 const chartScoreWeightCoefficient = 0.3713416563352296;
+const scoreCalibrations = JSON.parse(await readFile(path.resolve('data/score-calibrations.json'), 'utf8'));
+const scoreCalibrationByKey = new Map(scoreCalibrations.charts.map((row) => [
+  `${row.songId}::${row.difficulty}`,
+  row
+]));
 const musicMaster = JSON.parse(await readFile(path.resolve('data/raw/holodoridb/kor/Music.json'), 'utf8'));
 const musicById = new Map(musicMaster.map((row) => [row.data?.id ?? row.id, row.data ?? row]));
+const englishMusicText = JSON.parse(await readFile(path.resolve('data/raw/holodoridb/eng/LangMusic_Eng.json'), 'utf8'));
+const englishTextById = new Map(englishMusicText.map((row) => [row.data?.id ?? row.id, row.data?.text ?? row.text]));
+const musicDifficultyMaster = JSON.parse(await readFile(path.resolve('data/raw/holodoridb/kor/MusicDifficulty.json'), 'utf8'));
+const difficultyLevelByKey = new Map(musicDifficultyMaster.map((row) => {
+  const data = row.data ?? row;
+  return [`${data.musicId}::${data.difficultyType.split('_').at(-1)?.toLowerCase()}`, data.difficultyLevel];
+}));
 const singerMetadataOverrides = {
  m0334: { singerType: 'solo', singerCharacterIds: ['chr-04001'] }
 };
@@ -190,8 +202,10 @@ const importPattern = /charts\/([^"/]+\.json)"[^\n]{0,180}?import\("\.\/([^"/]+\
 for (const match of simulatorModule.matchAll(importPattern)) {
  const [, chartFile, assetFile] = match;
  const [songId, difficultyAndLevel] = chartFile.split('.', 2);
-  const difficulty = difficultyAndLevel.split('-')[0].toUpperCase();
-  if (selectedDifficulties.has(difficulty)) imports.push({ songId, difficulty, chartFile, assetFile });
+  const [difficultyName, difficultyLevelText] = difficultyAndLevel.split('-');
+  const difficulty = difficultyName.toUpperCase();
+  const difficultyLevel = Number.parseInt(difficultyLevelText, 10);
+  if (selectedDifficulties.has(difficulty)) imports.push({ songId, difficulty, difficultyLevel, chartFile, assetFile });
 }

 if (imports.length === 0) throw new Error('수집할 Hard/Expert 채보 모듈을 찾지 못했습니다.');
@@ -211,15 +225,15 @@ async function worker() {
    const music = musicById.get(item.songId);
    const singerOverride = singerMetadataOverrides[item.songId];
    const notes = flattenEvents(chartData);
+    const measuredCalibration = scoreCalibrationByKey.get(`${item.songId}::${item.difficulty.toLowerCase()}`);
    const output = {
      schemaVersion: 1,
      songId: item.songId,
      difficulty: item.difficulty.toLowerCase(),
      durationSeconds: sourceEntry?.durationSeconds ?? Math.ceil(notes.at(-1)?.timeSeconds ?? 0),
-      // 실측으로 보정된 1노트 기본점수 분모는 기존 채보 가중치 모델을 유지한다.
-      // 실제 점수 타임라인의 롱노트 분류와는 별개의 보정값이다.
-      scoreRatio: calibratedScoreRatio(chartData),
-      scoreCalibrationSource: 'measured-formula-v1',
+      // 실측이 있으면 우선하고, 없을 때만 채보 가중치와 계산기 고유 상수로 추정한다.
+      scoreRatio: measuredCalibration?.scoreRatio ?? calibratedScoreRatio(chartData),
+      scoreCalibrationSource: measuredCalibration ? 'measured' : 'local-estimated-v1',
      notes,
      specialStartSeconds: (chartData.sp_activation_events ?? [])
        .sort((left, right) => left.slot - right.slot)
@@ -236,10 +250,13 @@ async function worker() {
    await writeFile(path.join(outputDirectory, fileName), JSON.stringify(output), 'utf8');
    normalizedCharts.push({
      songId: item.songId,
-      title: sourceEntry?.title ?? item.songId,
+      title: englishTextById.get(`la-music_title-${item.songId}`) ?? sourceEntry?.title ?? item.songId,
      difficulty: item.difficulty.toLowerCase(),
+      difficultyLevel: difficultyLevelByKey.get(`${item.songId}::${item.difficulty.toLowerCase()}`) ??
+        (Number.isFinite(item.difficultyLevel) ? item.difficultyLevel : null),
      durationSeconds: output.durationSeconds,
      scoreRatio: output.scoreRatio,
+      scoreCalibrationSource: output.scoreCalibrationSource,
      totalNotes: notes.length,
      singerType: output.singerType,
      singerCharacterIds: output.singerCharacterIds,
@@ -581,7 +581,7 @@ function summarizeSpecialSkillLevels(levels) {
    return {
      ...summary,
      condition,
-      effect: condition ? [baseEffect, conditionalEffect].filter(Boolean).join(' ') : baseEffect
+      effect: [baseEffect, conditionalEffect].filter(Boolean).join(' ')
    };
  });
 }
@@ -0,0 +1,79 @@
+<script lang="ts">
+  import { createEventDispatcher } from 'svelte';
+  import { songOptions, type SongChartSummary, type SongSort } from '$lib/data/song-catalog.ts';
+
+  export let charts: readonly SongChartSummary[];
+  export let difficulty: string;
+  export let value: string;
+
+  const dispatch = createEventDispatcher<{ change: void }>();
+  let query = '';
+  let sort: SongSort = 'title';
+
+  $: options = songOptions(charts, difficulty, query, sort);
+
+  function selectSong(event: Event) {
+    const nextValue = (event.currentTarget as HTMLSelectElement).value;
+    if (!nextValue) return;
+    value = nextValue;
+    dispatch('change');
+  }
+</script>
+
+<div class="song-picker">
+  <label class="song-search">
+    <span>악곡 검색</span>
+    <input bind:value={query} type="search" placeholder="영문 곡명 검색" autocomplete="off">
+  </label>
+  <label class="song-sort">
+    <span>정렬</span>
+    <select bind:value={sort}>
+      <option value="title">알파벳순</option>
+      <option value="difficulty-asc">난이도 낮은순</option>
+      <option value="difficulty-desc">난이도 높은순</option>
+    </select>
+  </label>
+  <label class="song-select">
+    <span>악곡 <small>{options.length}곡</small></span>
+    <select value={value} on:change={selectSong} disabled={options.length === 0}>
+      {#if options.length === 0}
+        <option>검색 결과가 없습니다</option>
+      {:else}
+        {#if !options.some((song) => song.id === value)}
+          <option value="" disabled>검색 결과에서 악곡을 선택하세요</option>
+        {/if}
+        {#each options as song}
+          <option value={song.id}>{song.title}{song.difficultyLevel === null ? '' : ` · Lv. ${song.difficultyLevel}`}</option>
+        {/each}
+      {/if}
+    </select>
+  </label>
+  {#if query.trim()}
+    <p class:no-results={options.length === 0} class="search-status" aria-live="polite">
+      {options.length > 0
+        ? `${options.length}곡을 찾았습니다. 목록에서 선택하세요.`
+        : '검색 결과가 없습니다.'}
+    </p>
+  {/if}
+</div>
+
+<style>
+  .song-picker { display: grid; grid-template-columns: minmax(180px, .9fr) minmax(140px, .55fr) minmax(260px, 1.4fr); gap: 9px; }
+  label { display: grid; gap: 7px; min-width: 0; color: #8f98a8; font-size: 14px; font-weight: 750; }
+  label > span { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
+  small { color: #737d8d; font-size: 11px; }
+  input, select { width: 100%; min-width: 0; height: 42px; padding: 0 12px; border: 1px solid #343c49; border-radius: 9px; color: #e8ebf1; background: #11151b; font: inherit; }
+  input::placeholder { color: #68717f; opacity: 1; }
+  input:focus, select:focus { border-color: #d86f9c; outline: 3px solid rgb(216 111 156 / 14%); }
+  select:disabled { color: #747d8b; }
+  .search-status { grid-column: 1 / -1; margin: -1px 2px 0; color: #8fa99c; font-size: 12px; font-weight: 750; line-height: 1.45; }
+  .search-status.no-results { color: #d09494; }
+  @media (max-width: 900px) {
+    .song-picker { grid-template-columns: 1fr minmax(140px, .55fr); }
+    .song-select { grid-column: 1 / -1; }
+  }
+  @media (max-width: 520px) {
+    .song-picker { grid-template-columns: 1fr; }
+    .song-select { grid-column: auto; }
+  }
+</style>
@@ -323,7 +323,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -332,7 +332,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -484,7 +484,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -493,7 +493,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -750,7 +750,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -759,7 +759,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -1008,7 +1008,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -1017,7 +1017,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -1927,7 +1927,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -1936,7 +1936,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -2749,7 +2749,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -2758,7 +2758,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -2894,7 +2894,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -2903,7 +2903,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -3393,7 +3393,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -3402,7 +3402,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -3659,7 +3659,7 @@
            "probabilityPercent": null,
            "durationSeconds": 11,
            "condition": "",
-            "effect": "스코어 서포트 효과 110%"
+            "effect": "스코어 서포트 효과 110% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -3668,7 +3668,7 @@
            "probabilityPercent": null,
            "durationSeconds": 11,
            "condition": "",
-            "effect": "스코어 서포트 효과 130%"
+            "effect": "스코어 서포트 효과 130% 스킬 발동률이 45% UP"
          }
        ],
        "connect": [
@@ -3796,7 +3796,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -3805,7 +3805,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -4199,7 +4199,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -4208,7 +4208,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -4602,7 +4602,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -4611,7 +4611,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -5448,7 +5448,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -5457,7 +5457,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -6769,7 +6769,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 100%"
+            "effect": "스코어 서포트 효과 100% 스킬 발동률이 35% UP"
          },
          {
            "level": 2,
@@ -6778,7 +6778,7 @@
            "probabilityPercent": null,
            "durationSeconds": 12,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          }
        ],
        "connect": [
@@ -7857,7 +7857,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -7866,7 +7866,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -7978,7 +7978,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -7987,7 +7987,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -8308,7 +8308,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -8317,7 +8317,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -9009,7 +9009,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -9018,7 +9018,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -9170,7 +9170,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 120%"
+            "effect": "스코어 서포트 효과 120% 스킬 발동률이 40% UP"
          },
          {
            "level": 2,
@@ -9179,7 +9179,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 145%"
+            "effect": "스코어 서포트 효과 145% 스킬 발동률이 50% UP"
          }
        ],
        "connect": [
@@ -16033,7 +16033,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -16042,7 +16042,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -16270,7 +16270,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -16279,7 +16279,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -16507,7 +16507,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -16516,7 +16516,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -16586,7 +16586,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -16595,7 +16595,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -16665,7 +16665,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -16674,7 +16674,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -16902,7 +16902,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -16911,7 +16911,7 @@
            "probabilityPercent": null,
            "durationSeconds": 9,
            "condition": "",
-            "effect": "스코어 서포트 효과 60%"
+            "effect": "스코어 서포트 효과 60% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -16981,7 +16981,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -16990,7 +16990,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -17060,7 +17060,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -17069,7 +17069,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -17139,7 +17139,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -17148,7 +17148,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -17218,7 +17218,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -17227,7 +17227,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -17376,7 +17376,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -17385,7 +17385,7 @@
            "probabilityPercent": null,
            "durationSeconds": 9,
            "condition": "",
-            "effect": "스코어 서포트 효과 60%"
+            "effect": "스코어 서포트 효과 60% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -17534,7 +17534,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -17543,7 +17543,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -17613,7 +17613,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -17622,7 +17622,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -17850,7 +17850,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -17859,7 +17859,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -17929,7 +17929,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -17938,7 +17938,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -18245,7 +18245,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -18254,7 +18254,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -18403,7 +18403,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -18412,7 +18412,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -18561,7 +18561,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -18570,7 +18570,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -18798,7 +18798,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -18807,7 +18807,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -18956,7 +18956,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -18965,7 +18965,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19114,7 +19114,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19123,7 +19123,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19193,7 +19193,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19202,7 +19202,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19272,7 +19272,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 45%"
+            "effect": "스코어 서포트 효과 45% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -19281,7 +19281,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -19430,7 +19430,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% GOOD 이상이 PERFECT가 된다"
          },
          {
            "level": 2,
@@ -19439,7 +19439,7 @@
            "probabilityPercent": null,
            "durationSeconds": 7,
            "condition": "",
-            "effect": "스코어 서포트 효과 80%"
+            "effect": "스코어 서포트 효과 80% GOOD 이상이 PERFECT가 된다"
          }
        ],
        "connect": [],
@@ -19509,7 +19509,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19518,7 +19518,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19588,7 +19588,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19597,7 +19597,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19667,7 +19667,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19676,7 +19676,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -19825,7 +19825,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -19834,7 +19834,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -20141,7 +20141,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 50%"
+            "effect": "스코어 서포트 효과 50% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -20150,7 +20150,7 @@
            "probabilityPercent": null,
            "durationSeconds": 8,
            "condition": "",
-            "effect": "스코어 서포트 효과 70%"
+            "effect": "스코어 서포트 효과 70% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -20220,7 +20220,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 40%"
+            "effect": "스코어 서포트 효과 40% 라이프가 300 회복"
          },
          {
            "level": 2,
@@ -20229,7 +20229,7 @@
            "probabilityPercent": null,
            "durationSeconds": 10,
            "condition": "",
-            "effect": "스코어 서포트 효과 55%"
+            "effect": "스코어 서포트 효과 55% 라이프가 400 회복"
          }
        ],
        "connect": [],
@@ -0,0 +1,56 @@
+export type SongSort = 'title' | 'difficulty-asc' | 'difficulty-desc';
+
+export type SongChartSummary = {
+  songId: string;
+  title: string;
+  difficulty: string;
+  difficultyLevel?: number | null;
+  scoreCalibrationSource?: 'measured' | 'local-estimated-v1' | string;
+};
+
+export type SongOption = {
+  id: string;
+  title: string;
+  difficultyLevel: number | null;
+};
+
+const englishTitleCollator = new Intl.Collator('en', {
+  sensitivity: 'base',
+  numeric: true
+});
+
+function normalizedSearch(value: string): string {
+  return value.normalize('NFKD').toLocaleLowerCase('en').replace(/[^a-z0-9]+/g, ' ').trim();
+}
+
+export function songOptions(
+  charts: readonly SongChartSummary[],
+  difficulty: string,
+  query = '',
+  sort: SongSort = 'title'
+): SongOption[] {
+  const levelBySongId = new Map(charts
+    .filter((chart) => chart.difficulty === difficulty)
+    .map((chart) => [chart.songId, chart.difficultyLevel ?? null]));
+  const options = Array.from(new Map(charts.map((chart) => [chart.songId, {
+    id: chart.songId,
+    title: chart.title,
+    difficultyLevel: levelBySongId.get(chart.songId) ?? null
+  }])).values());
+  const search = normalizedSearch(query);
+  const filtered = search
+    ? options.filter((song) => normalizedSearch(`${song.title} ${song.id}`).includes(search))
+    : options;
+  const titleOrder = (left: SongOption, right: SongOption) =>
+    englishTitleCollator.compare(left.title, right.title) || left.id.localeCompare(right.id);
+
+  return filtered.sort((left, right) => {
+    if (sort === 'title') return titleOrder(left, right);
+    if (left.difficultyLevel === null) return right.difficultyLevel === null ? titleOrder(left, right) : 1;
+    if (right.difficultyLevel === null) return -1;
+    const leftLevel = left.difficultyLevel;
+    const rightLevel = right.difficultyLevel;
+    const levelOrder = sort === 'difficulty-desc' ? rightLevel - leftLevel : leftLevel - rightLevel;
+    return levelOrder || titleOrder(left, right);
+  });
+}
@@ -0,0 +1,27 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { effectiveActiveProbability } from './active-probability.ts';
+import type { OptimizerCard } from './types.ts';
+
+function card(probabilityPercent: number, activationRateUpPercent = 0): OptimizerCard {
+  return {
+    id: 'card',
+    name: '카드',
+    active: {
+      cooldownSeconds: 1,
+      durationSeconds: 1,
+      scoreUpPercent: 100,
+      probabilityPercent,
+      activationRateUpPercent
+    },
+    special: { durationSeconds: 0, scoreUpPercent: 0 }
+  };
+}
+
+test('블루 보드와 스페셜 발동률 UP은 배율을 합산한 뒤 기본 발동률에 곱한다', () => {
+  assert.ok(Math.abs(effectiveActiveProbability(card(55, 30), 40) - 0.935) < 1e-12);
+});
+
+test('합산한 발동률은 100%를 넘지 않는다', () => {
+  assert.equal(effectiveActiveProbability(card(55, 50), 40), 1);
+});
@@ -0,0 +1,13 @@
+import type { OptimizerCard } from './types.ts';
+
+/**
+ * 액티브 기본 발동률에 상시 보너스와 발동 시점의 스페셜 보너스를 합산해 적용한다.
+ */
+export function effectiveActiveProbability(
+  card: OptimizerCard,
+  timedActivationRateUpPercent = 0
+): number {
+  const baseProbability = (card.active.probabilityPercent ?? 100) / 100;
+  const totalRateUpPercent = (card.active.activationRateUpPercent ?? 0) + timedActivationRateUpPercent;
+  return Math.max(0, Math.min(1, baseProbability * (1 + totalRateUpPercent / 100)));
+}
@@ -0,0 +1,190 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { optimizeBoardConnectionCards, type BoardConnectionOptimizerSource } from './board-connection-optimizer.ts';
+
+const source: BoardConnectionOptimizerSource = {
+  members: [{ id: 'member', positionGroupId: 'model' }],
+  models: {
+    model: [
+      { groupId: 'S-center', x: 0, y: 0 },
+      { groupId: 'G-left', x: -1, y: 0 },
+      { groupId: 'G-right', x: 1, y: 0 },
+      { groupId: 'S-right', x: 3, y: 0 },
+      { groupId: 'G-far', x: 4, y: 0 }
+    ]
+  },
+  nodeGroups: {
+    'S-center': [{ characterIds: [], type: 'connection', effect: null }],
+    'S-right': [{ characterIds: [], type: 'connection', effect: null }],
+    'G-left': [{ characterIds: [], type: 'all_member', effect: { type: 'performance_up', value: 100 } }],
+    'G-right': [{ characterIds: [], type: 'all_member', effect: { type: 'performance_up', value: 300 } }],
+    'G-far': [{ characterIds: [], type: 'all_member', effect: { type: 'all_parameter_up', value: 200 } }]
+  }
+};
+
+const leftCard = {
+  id: 'left-card', awakening: 0,
+  connect: [{ level: 1, effectPermilUp: 1000, extent: [{ x: -1, y: 0 }] }]
+};
+const rightCard = {
+  id: 'right-card', awakening: 0,
+  connect: [{ level: 1, effectPermilUp: 1000, extent: [{ x: 1, y: 0 }] }]
+};
+
+test('활성 연결 노드 전체에서 보유 카드의 최대 가중치 배치를 찾는다', () => {
+  const result = optimizeBoardConnectionCards(source, { member: ['S-right', 'G-left', 'G-right', 'G-far'] }, [leftCard, rightCard]);
+  assert.deepEqual(result.placements, {
+    member: { 'S-center': 'left-card', 'S-right': 'right-card' }
+  });
+  assert.equal(result.assignments.length, 2);
+});
+
+test('비활성 연결 노드와 비활성 효과 노드는 배치 점수에 포함하지 않는다', () => {
+  const memberBoards = { member: ['G-left'] };
+  const before = structuredClone(memberBoards);
+  const result = optimizeBoardConnectionCards(source, memberBoards, [leftCard, rightCard]);
+  assert.deepEqual(result.placements, { member: { 'S-center': 'left-card' } });
+  assert.deepEqual(memberBoards, before);
+});
+
+test('5개화 카드는 2레벨 연결 범위와 배율을 사용한다', () => {
+  const awakened = {
+    id: 'awakened', awakening: 5,
+    connect: [
+      { level: 1, effectPermilUp: 100, extent: [{ x: -1, y: 0 }] },
+      { level: 2, effectPermilUp: 200, extent: [{ x: 1, y: 0 }] }
+    ]
+  };
+  const result = optimizeBoardConnectionCards(source, { member: ['G-left', 'G-right'] }, [awakened]);
+  assert.deepEqual(result.placements, { member: { 'S-center': 'awakened' } });
+  assert.equal(result.totalWeight, 60_000);
+});
+
+test('솔로와 단체 10%를 각각 우선하며 단체는 다른 멤버 보너스도 합산한다', () => {
+  const bonusSource: BoardConnectionOptimizerSource = {
+    members: [
+      { id: 'target', positionGroupId: 'model' },
+      { id: 'helper', positionGroupId: 'model' }
+    ],
+    models: { model: [{ groupId: 'S', x: 0, y: 0 }, { groupId: 'Y', x: 1, y: 0 }] },
+    nodeGroups: {
+      S: [{ characterIds: [], type: 'connection', effect: null }],
+      Y: [
+        {
+          characterIds: ['target'], type: 'content',
+          effect: {
+            id: 'music_singer_type-solo',
+            type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 20
+          }
+        },
+        {
+          characterIds: ['helper'], type: 'content',
+          effect: {
+            id: 'music_singer_type-group',
+            type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 20
+          }
+        }
+      ]
+    }
+  };
+  const cards = ['a', 'b'].map((id) => ({
+    id, awakening: 0,
+    connect: [{ level: 1, effectPermilUp: 4000, extent: [{ x: 1, y: 0 }] }]
+  }));
+  const result = optimizeBoardConnectionCards(
+    bonusSource,
+    { target: ['Y'], helper: ['Y'] },
+    cards,
+    { targetMemberId: 'target', requireSoloSongBonus: true, requireGroupSongBonus: true }
+  );
+  assert.equal(result.soloSongBonusPercent, 10);
+  assert.equal(result.groupSongBonusPercent, 10);
+  assert.equal(result.assignments.length, 2);
+});
+
+test('10%에 부족한 활성 노드만 있으면 가능한 보너스까지만 최적화한다', () => {
+  const bonusSource: BoardConnectionOptimizerSource = {
+    members: [{ id: 'target', positionGroupId: 'model' }],
+    models: { model: [{ groupId: 'S', x: 0, y: 0 }, { groupId: 'Y', x: 1, y: 0 }] },
+    nodeGroups: {
+      S: [{ characterIds: [], type: 'connection', effect: null }],
+      Y: [{
+        characterIds: [], type: 'content',
+        effect: {
+          id: 'music_singer_type-solo',
+          type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 20
+        }
+      }]
+    }
+  };
+  const result = optimizeBoardConnectionCards(bonusSource, { target: ['Y'] }, [{
+    id: 'card', awakening: 0,
+    connect: [{ level: 1, effectPermilUp: 1000, extent: [{ x: 1, y: 0 }] }]
+  }], { targetMemberId: 'target', requireSoloSongBonus: true });
+  assert.equal(result.soloSongBonusPercent, 4);
+  assert.deepEqual(result.placements, { target: { S: 'card' } });
+});
+
+test('편성 기반 배치 가중치를 제공하면 해당 효율을 우선한다', () => {
+  const result = optimizeBoardConnectionCards(source, { member: ['S-right', 'G-left', 'G-right', 'G-far'] }, [leftCard, rightCard], {
+    placementWeight: (card, _memberId, socketId) => card.id === 'right-card' && socketId === 'S-right' ? 10_000 : 1
+  });
+  assert.equal(result.placements.member['S-right'], 'right-card');
+});
+
+test('우선 배치 가중치는 일반 점수보다 먼저 최대화한다', () => {
+  const result = optimizeBoardConnectionCards(source, { member: ['S-right', 'G-left', 'G-right', 'G-far'] }, [leftCard, rightCard], {
+    placementWeight: (card, _memberId, socketId) => card.id === 'right-card' && socketId === 'S-right' ? 10_000 : 1,
+    placementPriorityWeight: (card, _memberId, socketId) => card.id === 'left-card' && socketId === 'S-right' ? 1 : 0
+  });
+  assert.equal(result.placements.member['S-right'], 'left-card');
+});
+
+test('리더와 보너스 대상이 같으면 악곡 보너스보다 편성 효율을 우선한다', () => {
+  const prioritySource: BoardConnectionOptimizerSource = {
+    members: [{ id: 'leader', positionGroupId: 'model' }],
+    models: { model: [
+      { groupId: 'S-center', x: 0, y: 0 }, { groupId: 'Y', x: 1, y: 0 },
+      { groupId: 'S-top', x: 0, y: 3 }, { groupId: 'R', x: 1, y: 3 }
+    ] },
+    nodeGroups: {
+      'S-center': [{ characterIds: [], type: 'connection', effect: null }],
+      'S-top': [{ characterIds: [], type: 'connection', effect: null }],
+      Y: [{ characterIds: [], type: 'content', effect: {
+        id: 'music_singer_type-solo',
+        type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 50
+      } }],
+      R: [{ characterIds: [], type: 'leader', effect: { type: 'performance_up', value: 100 } }]
+    }
+  };
+  const singleCard = [{
+    id: 'card', awakening: 0,
+    connect: [{ level: 1, effectPermilUp: 1000, extent: [{ x: 1, y: 0 }] }]
+  }];
+  const result = optimizeBoardConnectionCards(prioritySource, { leader: ['Y', 'S-top', 'R'] }, singleCard, {
+    targetMemberId: 'leader',
+    requireSoloSongBonus: true,
+    prioritizePlacementWeight: true,
+    placementWeight: (_card, _memberId, socketId) => socketId === 'S-top' ? 100 : 0
+  });
+  assert.deepEqual(result.placements, { leader: { 'S-top': 'card' } });
+  assert.equal(result.soloSongBonusPercent, 5);
+});
+
+test('선택한 단체 악곡의 가창자 보드만 단체 보너스에 합산한다', () => {
+  const bonusSource: BoardConnectionOptimizerSource = {
+    members: [{ id: 'singer', positionGroupId: 'model' }, { id: 'outsider', positionGroupId: 'model' }],
+    models: { model: [{ groupId: 'S', x: 0, y: 0 }, { groupId: 'Y', x: 1, y: 0 }] },
+    nodeGroups: {
+      S: [{ characterIds: [], type: 'connection', effect: null }],
+      Y: [
+        { characterIds: ['singer'], type: 'content', effect: { id: 'music_singer_type-group', type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 20 } },
+        { characterIds: ['outsider'], type: 'content', effect: { id: 'music_singer_type-group', type: 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type', value: 80 } }
+      ]
+    }
+  };
+  const result = optimizeBoardConnectionCards(bonusSource, { singer: ['Y'], outsider: ['Y'] }, [], {
+    targetMemberId: 'singer', requireGroupSongBonus: true, groupSingerMemberIds: ['singer']
+  });
+  assert.equal(result.groupSongBonusPercent, 2);
+});
@@ -0,0 +1,226 @@
+import { maximumWeightMatching } from './maximum-weight-matching.ts';
+
+type OptimizableBoardEffect = {
+  id?: string;
+  type: string;
+  value: number | null;
+  trigger?: string | null;
+};
+
+type OptimizableBoardNode = {
+  characterIds: readonly string[];
+  type: string;
+  effect: OptimizableBoardEffect | null;
+};
+
+type OptimizableBoardPosition = { groupId: string; x: number; y: number };
+
+export type BoardConnectionOptimizerSource = {
+  members: readonly { id: string; positionGroupId: string }[];
+  models: Readonly<Record<string, readonly OptimizableBoardPosition[]>>;
+  nodeGroups: Readonly<Record<string, readonly OptimizableBoardNode[]>>;
+};
+
+export type OptimizableConnectionCard = {
+  id: string;
+  awakening: number;
+  connect: readonly {
+    level: number;
+    effectPermilUp: number;
+    extent: readonly { x: number; y: number }[];
+  }[];
+};
+
+export type BoardConnectionAssignment = {
+  memberId: string;
+  socketId: string;
+  cardId: string;
+  weight: number;
+};
+
+export type BoardConnectionOptimizationResult = {
+  placements: Record<string, Record<string, string>>;
+  assignments: BoardConnectionAssignment[];
+  totalWeight: number;
+  soloSongBonusPercent: number;
+  groupSongBonusPercent: number;
+};
+
+export type BoardConnectionOptimizationOptions = {
+  targetMemberId?: string;
+  requireSoloSongBonus?: boolean;
+  requireGroupSongBonus?: boolean;
+  placementWeight?: (card: OptimizableConnectionCard, memberId: string, socketId: string) => number;
+  placementPriorityWeight?: (card: OptimizableConnectionCard, memberId: string, socketId: string) => number;
+  prioritizePlacementWeight?: boolean;
+  groupSingerMemberIds?: readonly string[];
+};
+
+function nodeForMember(
+  source: BoardConnectionOptimizerSource,
+  groupId: string,
+  memberId: string
+): OptimizableBoardNode | null {
+  const nodes = source.nodeGroups[groupId] ?? [];
+  return nodes.find((node) => node.characterIds.includes(memberId))
+    ?? nodes.find((node) => node.characterIds.length === 0)
+    ?? null;
+}
+
+function effectValue(effect: OptimizableBoardEffect | null): number {
+  if (!effect || effect.value === null || effect.trigger === 'work') return 0;
+  if (effect.type === 'live_active_skill_cool_time_shorten_permil_up') return 0;
+  // Song bonuses are contextual and are valued only when the user requests
+  // the corresponding solo/group target below.
+  if (effect.type === 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type') return 0;
+  const value = Math.max(0, Number(effect.value) || 0);
+  return effect.type.startsWith('all_parameter_up') ? value * 3 : value;
+}
+
+function selectedEffect(card: OptimizableConnectionCard) {
+  const level = card.awakening >= 5 ? 2 : 1;
+  return card.connect.find((effect) => effect.level === level) ?? card.connect.at(-1) ?? null;
+}
+
+function songBonusModes(
+  effect: OptimizableBoardEffect | null,
+  ownerId: string,
+  targetMemberId: string,
+  groupSingerMemberIds?: readonly string[]
+): ('solo' | 'group')[] {
+  if (!effect?.id || effect.type !== 'live_score_bonus_add_permil_up_by_music_skill_tree_character_and_music_singer_type') return [];
+  const mode = effect.id.match(/music_singer_type-(all|group|solo)/)?.[1];
+  if (mode === 'all') return ['solo', 'group'];
+  if (mode === 'solo' && ownerId === targetMemberId) return ['solo'];
+  // A unit song bonus may be supplied by another participating singer's board.
+  if (mode === 'group' && (!groupSingerMemberIds || groupSingerMemberIds.includes(ownerId))) return ['group'];
+  return [];
+}
+
+/**
+ * Reassigns owned connection cards across active connection sockets without
+ * changing the supplied node activation state.
+ */
+export function optimizeBoardConnectionCards(
+  source: BoardConnectionOptimizerSource,
+  memberBoards: Readonly<Record<string, readonly string[]>>,
+  ownedCards: readonly OptimizableConnectionCard[],
+  options: BoardConnectionOptimizationOptions = {}
+): BoardConnectionOptimizationResult {
+  const targetMemberId = options.targetMemberId ?? '';
+  let baseSoloBonus = 0;
+  let baseGroupBonus = 0;
+  const slots = source.members.flatMap((member) => {
+    const positions = source.models[member.positionGroupId] ?? [];
+    const centerId = positions.find((position) => position.x === 0 && position.y === 0)?.groupId;
+    const active = new Set(memberBoards[member.id] ?? []);
+    if (centerId) active.add(centerId);
+    for (const position of positions) {
+      if (!active.has(position.groupId)) continue;
+      const node = nodeForMember(source, position.groupId, member.id);
+      const value = Math.max(0, Number(node?.effect?.value) || 0);
+      for (const mode of songBonusModes(node?.effect ?? null, member.id, targetMemberId, options.groupSingerMemberIds)) {
+        if (mode === 'solo') baseSoloBonus += value;
+        else baseGroupBonus += value;
+      }
+    }
+    return positions
+      .filter((position) => active.has(position.groupId) && nodeForMember(source, position.groupId, member.id)?.type === 'connection')
+      .map((socket) => ({ member, socket, positions, active }));
+  });
+
+  const cards = ownedCards.filter((card) => selectedEffect(card));
+  const emptyResult = {
+    placements: {}, assignments: [], totalWeight: 0,
+    soloSongBonusPercent: Math.min(10, baseSoloBonus / 10),
+    groupSongBonusPercent: Math.min(10, baseGroupBonus / 10)
+  };
+  if (cards.length === 0 || slots.length === 0) return emptyResult;
+
+  const soloBoosts = cards.map(() => slots.map(() => 0));
+  const groupBoosts = cards.map(() => slots.map(() => 0));
+  const genericWeights = cards.map((card, cardIndex) => slots.map(({ member, socket, positions, active }, slotIndex) => {
+    const effect = selectedEffect(card);
+    if (!effect) return 0;
+    const positionByCoordinate = new Map(positions.map((position) => [`${position.x},${position.y}`, position]));
+    const coveredValue = effect.extent.reduce((total, offset) => {
+      const position = positionByCoordinate.get(`${socket.x + offset.x},${socket.y + offset.y}`);
+      if (!position || !active.has(position.groupId)) return total;
+      const nodeEffect = nodeForMember(source, position.groupId, member.id)?.effect ?? null;
+      const value = effectValue(nodeEffect);
+      const boost = Math.max(0, Number(nodeEffect?.value) || 0) * Math.max(0, effect.effectPermilUp);
+      for (const mode of songBonusModes(nodeEffect, member.id, targetMemberId, options.groupSingerMemberIds)) {
+        if (mode === 'solo') soloBoosts[cardIndex][slotIndex] += boost;
+        else groupBoosts[cardIndex][slotIndex] += boost;
+      }
+      return total + value;
+    }, 0);
+    const defaultWeight = coveredValue * Math.max(0, effect.effectPermilUp);
+    return Math.max(0, options.placementWeight?.(card, member.id, socket.groupId) ?? defaultWeight);
+  }));
+  const priorityUnits = cards.map((card) => slots.map(({ member, socket }) =>
+    Math.max(0, Math.round((options.placementPriorityWeight?.(card, member.id, socket.groupId) ?? 0) * 1000))
+  ));
+  const maximumAssignments = Math.min(cards.length, slots.length);
+  const genericBudget = Math.max(1, ...genericWeights.flatMap((row) => row)) * maximumAssignments;
+  const weights = genericWeights.map((row, cardIndex) => row.map((weight, slotIndex) =>
+    priorityUnits[cardIndex][slotIndex] * (genericBudget + 1) + weight
+  ));
+
+  const priorityScale = Math.max(1, ...weights.flatMap((row) => row)) * Math.max(cards.length, slots.length) + 1;
+  const ratios = options.requireSoloSongBonus && options.requireGroupSongBonus
+    ? [1 / 256, 1 / 16, 1 / 4, 1, 4, 16, 256]
+    : [1];
+  const priorityMultipliers = options.requireSoloSongBonus || options.requireGroupSongBonus
+    ? [0, 1 / 1_000_000, 1 / 10_000, 1 / 100, 1, 100]
+    : [0];
+  const candidates = priorityMultipliers.flatMap((priorityMultiplier) => ratios.map((ratio) => {
+    const prioritized = weights.map((row, cardIndex) => row.map((weight, slotIndex) => weight + priorityScale * (
+      (options.requireSoloSongBonus ? soloBoosts[cardIndex][slotIndex] * ratio : 0)
+      + (options.requireGroupSongBonus ? groupBoosts[cardIndex][slotIndex] : 0)
+    ) * priorityMultiplier));
+    const matches = maximumWeightMatching(prioritized);
+    const genericWeight = matches.reduce((total, match) => total + weights[match.rowIndex][match.columnIndex], 0);
+    const soloBonus = baseSoloBonus + matches.reduce((total, match) => total + soloBoosts[match.rowIndex][match.columnIndex] / 1000, 0);
+    const groupBonus = baseGroupBonus + matches.reduce((total, match) => total + groupBoosts[match.rowIndex][match.columnIndex] / 1000, 0);
+    const feasible = (!options.requireSoloSongBonus || soloBonus >= 100)
+      && (!options.requireGroupSongBonus || groupBonus >= 100);
+    const fulfillment = Math.min(
+      options.requireSoloSongBonus ? soloBonus / 100 : Number.POSITIVE_INFINITY,
+      options.requireGroupSongBonus ? groupBonus / 100 : Number.POSITIVE_INFINITY
+    );
+    const totalFulfillment = (options.requireSoloSongBonus ? Math.min(1, soloBonus / 100) : 0)
+      + (options.requireGroupSongBonus ? Math.min(1, groupBonus / 100) : 0);
+    return { matches, genericWeight, soloBonus, groupBonus, feasible, fulfillment, totalFulfillment };
+  }));
+  const best = candidates.sort((left, right) => options.prioritizePlacementWeight
+    ? right.genericWeight - left.genericWeight
+      || Number(right.feasible) - Number(left.feasible)
+      || right.fulfillment - left.fulfillment
+      || right.totalFulfillment - left.totalFulfillment
+    : Number(right.feasible) - Number(left.feasible)
+      || right.fulfillment - left.fulfillment
+      || right.totalFulfillment - left.totalFulfillment
+      || right.genericWeight - left.genericWeight)[0];
+  const matches = best.matches;
+  const placements: Record<string, Record<string, string>> = {};
+  const assignments = matches.map((match) => {
+    const card = cards[match.rowIndex];
+    const slot = slots[match.columnIndex];
+    (placements[slot.member.id] ??= {})[slot.socket.groupId] = card.id;
+    return {
+      memberId: slot.member.id,
+      socketId: slot.socket.groupId,
+      cardId: card.id,
+      weight: genericWeights[match.rowIndex][match.columnIndex]
+    };
+  });
+
+  return {
+    placements,
+    assignments,
+    totalWeight: assignments.reduce((total, assignment) => total + assignment.weight, 0),
+    soloSongBonusPercent: Math.min(10, best.soloBonus / 10),
+    groupSongBonusPercent: Math.min(10, best.groupBonus / 10)
+  };
+}
@@ -104,7 +104,7 @@ test('같은 기수의 보드 보너스는 카드별로 최대 900까지만 적
  assert.equal(result.flatByCardId['card-b'].performance, 0);
 });

-test('복수 소속 카드는 각 기수의 900 상한을 따로 적용한다', () => {
+test('복수 소속 카드도 모든 기수 보너스를 합쳐 카드별 900까지만 적용한다', () => {
  const multiGroupingSummary: BoardSummarySource = {
    nodeGroups: {
      'G-20': [{ characterIds: [], effect: { type: 'all_parameter_up_for_character_grouping', value: 900, targetId: 'skill_tree_effect_target-character_grouping-grp-gen_1' } }],
@@ -114,7 +114,11 @@ test('복수 소속 카드는 각 기수의 900 상한을 따로 적용한다',
  };
  const multiGroupingCards = [{ id: 'fubuki', characterId: 'fubuki', type: '퓨어', generation: 'hololive 1기생 / GAMERS' }];

+  const firstGenerationMaxed = calculateBoardEffects(multiGroupingSummary, { account: ['G-20'] }, multiGroupingCards, 'fubuki');
+  const gamersAdded = calculateBoardEffects(multiGroupingSummary, { account: ['G-20', 'G-21'] }, multiGroupingCards, 'fubuki');
  const result = calculateBoardEffects(multiGroupingSummary, { account: ['G-20', 'G-21', 'G-22'] }, multiGroupingCards, 'fubuki');

-  assert.equal(result.flatByCardId.fubuki.performance, 1800);
+  assert.equal(firstGenerationMaxed.flatByCardId.fubuki.performance, 900);
+  assert.equal(gamersAdded.flatByCardId.fubuki.performance, 900);
+  assert.equal(result.flatByCardId.fubuki.performance, 900);
 });
@@ -141,7 +141,7 @@ export function calculateBoardEffects(
  let scoreSupportPercent = 0;
  let directSongScoreBonusPercent = 0;
  const multipliers = connectionMultipliers(summary, memberBoards, connections);
-  const generationBonusByCardAndGrouping: Record<string, Record<string, number>> = {};
+  const generationBonusByCardId: Record<string, number> = {};

  for (const [ownerId, activeGroupIds] of Object.entries(memberBoards)) {
    for (const groupId of activeGroupIds) {
@@ -176,13 +176,11 @@ export function calculateBoardEffects(
      const normalizedValue = effect.type.endsWith('_permil_up') ? value / 10 : value;
      const effectTargets = targets(effect, ownerId, cards);
      if (effect.type === 'all_parameter_up_for_character_grouping') {
-        const groupingId = effect.targetId ?? 'unknown-grouping';
        for (const card of effectTargets) {
          if (overrides?.generationBonusByCardId?.[card.id] !== undefined) continue;
-          const cardBonuses = generationBonusByCardAndGrouping[card.id] ??= {};
-          const currentBonus = cardBonuses[groupingId] ?? 0;
+          const currentBonus = generationBonusByCardId[card.id] ?? 0;
          const appliedValue = Math.max(0, Math.min(normalizedValue, generationBonusCap - currentBonus));
-          cardBonuses[groupingId] = currentBonus + appliedValue;
+          generationBonusByCardId[card.id] = currentBonus + appliedValue;
          for (const stat of stats) destination[card.id][stat] += appliedValue;
        }
        continue;
@@ -0,0 +1,27 @@
+import assert from 'node:assert/strict';
+import { readFile } from 'node:fs/promises';
+import test from 'node:test';
+
+type SpecialLevel = {
+  description: string;
+  effect: string;
+};
+
+type CardSummary = {
+  cards: Array<{
+    name: string;
+    details: { special: SpecialLevel[] };
+  }>;
+};
+
+test('스페셜 설명의 추가 효과가 요약 데이터에서 누락되지 않는다', async () => {
+  const path = new URL('../data/cards-summary.json', import.meta.url);
+  const summary = JSON.parse(await readFile(path, 'utf8')) as CardSummary;
+  const additionalEffectMarkers = ['스킬 발동률', 'GOOD 이상이 PERFECT가 된다', '라이프가'];
+  const missing = summary.cards.flatMap((card) => card.details.special.flatMap((level) =>
+    additionalEffectMarkers
+      .filter((marker) => level.description.includes(marker) && !level.effect.includes(marker))
+      .map((marker) => `${card.name} (${marker}): ${level.description}`)));
+
+  assert.deepEqual(missing, []);
+});
@@ -1,3 +1,4 @@
+import { effectiveActiveProbability } from './active-probability.ts';
 import { calculateExactScore } from './score.ts';
 import { passiveScoreSupportByCard } from './passive-support.ts';
 import { effectiveCooldownSeconds } from './timeline.ts';
@@ -85,7 +86,7 @@ function makeProfiles(order: readonly OptimizerCard[], chart: ExactSongChart): M
        let effectiveProbability = probabilityByAttempt.get(attempt);
        if (effectiveProbability === undefined) {
          const activationBonus = specialRate(order, chart, activationTime, 'activationRateUpPercent');
-          effectiveProbability = Math.min(1, ((card.active.probabilityPercent ?? 100) / 100) * (1 + activationBonus / 100));
+          effectiveProbability = effectiveActiveProbability(card, activationBonus);
          probabilityByAttempt.set(attempt, effectiveProbability);
        }
        boost[noteIndex] = card.active.scoreUpPercent / 100 *
@@ -1,7 +1,9 @@
+export * from './active-probability.ts';
 export * from './card-adapter.ts';
 export * from './combination-search.ts';
 export * from './awakening-requirements.ts';
 export * from './board-effects.ts';
+export * from './board-connection-optimizer.ts';
 export * from './exact-optimizer.ts';
 export * from './memory.ts';
 export * from './maximum-weight-matching.ts';
@@ -74,6 +74,22 @@ test('스페셜의 액티브 발동률 증가를 발동 시점에 적용한다',
  assert.equal(result.maximum, 0.75);
 });

+test('블루 보드와 스페셜의 발동률 증가 배율을 합산한다', () => {
+  const main = card('main', 100, 55);
+  main.active.activationRateUpPercent = 30;
+  const support: OptimizerCard = {
+    ...card('support', 0, 0),
+    special: { durationSeconds: 3, scoreUpPercent: 0, activationRateUpPercent: 40 }
+  };
+  const result = estimateScoreAchievementProbabilities(
+    [main, support],
+    { main: 0, support: 0 },
+    chart([1.1], [null, 0]),
+    { perfectNoteScore: 100, sampleCount: 1_000, seed: 6 }
+  );
+  assert.ok(Math.abs(result.maximum - 0.935) < 1e-12);
+});
+
 test('확정 발동이면 모든 달성 확률이 100%다', () => {
  const result = estimateScoreAchievementProbabilities(
    [card('main', 100, 100)],
@@ -1,3 +1,4 @@
+import { effectiveActiveProbability } from './active-probability.ts';
 import { passiveScoreSupportByCard } from './passive-support.ts';
 import { effectiveCooldownSeconds } from './timeline.ts';
 import type {
@@ -84,7 +85,7 @@ function prepareModel(
      let attemptIndex = attemptIndexes.get(key);
      if (attemptIndex === undefined) {
        const activationBonus = specialRate(cards, chart, activationTime, 'activationRateUpPercent');
-        const probability = Math.min(1, ((card.active.probabilityPercent ?? 100) / 100) * (1 + activationBonus / 100));
+        const probability = effectiveActiveProbability(card, activationBonus);
        attemptIndex = attempts.length;
        attemptIndexes.set(key, attemptIndex);
        attempts.push({ key, probability });
@@ -1,5 +1,6 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
+import scoreCalibrations from '../../../data/score-calibrations.json' with { type: 'json' };
 import { calculateExactScore, perfectNoteScoreFromPower, scoreRatioFromNotes } from './index.ts';
 import type { ExactSongChart, OptimizerCard } from './types.ts';

@@ -74,3 +75,49 @@ test('액티브 발동 확률과 스페셜 스코어 서포트를 기대 점수
  assert.equal(result.expectedScore, 1_200);
  assert.equal(result.theoreticalMaxScore, 1_800);
 });
+
+test('블루 보드와 스페셜의 발동률 증가 배율을 합산해 기대 점수에 반영한다', () => {
+  const main: OptimizerCard = {
+    id: 'main',
+    name: '메인',
+    active: {
+      cooldownSeconds: 1,
+      durationSeconds: 1,
+      scoreUpPercent: 100,
+      probabilityPercent: 55,
+      activationRateUpPercent: 30
+    },
+    special: { durationSeconds: 0, scoreUpPercent: 0 }
+  };
+  const support: OptimizerCard = {
+    id: 'support',
+    name: '서포트',
+    active: { cooldownSeconds: 999, durationSeconds: 0, scoreUpPercent: 0, probabilityPercent: 0 },
+    special: { durationSeconds: 3, scoreUpPercent: 0, activationRateUpPercent: 40 }
+  };
+  const result = calculateExactScore([main, support], {}, {
+    ...chart([{ timeSeconds: 1, type: 'regular', isFlick: false }]),
+    specialStartSeconds: [null, 0]
+  }, { perfectNoteScore: 100 });
+
+  assert.equal(result.expectedScore, 194);
+  assert.equal(result.theoreticalMaxScore, 200);
+});
+
+test('등록된 실측 ratio가 모든 1노트 측정값을 재현한다', () => {
+  for (const calibration of scoreCalibrations.charts) {
+    for (const measurement of calibration.measurements) {
+      const result = calculateExactScore([inactiveCard], {}, chart([
+        { timeSeconds: 1, type: 'regular', isFlick: false }
+      ]), {
+        perfectNoteScore: measurement.overallPower / calibration.scoreRatio,
+        directSongScoreBonusPercent: measurement.directSongScoreBonusPercent
+      });
+      assert.equal(
+        result.baselineScore,
+        measurement.normalPerfectScore,
+        `${calibration.songId} ${calibration.difficulty}`
+      );
+    }
+  }
+});
@@ -1,3 +1,4 @@
+import { effectiveActiveProbability } from './active-probability.ts';
 import { effectiveCooldownSeconds } from './timeline.ts';
 import { passiveScoreSupportAt } from './passive-support.ts';
 import type {
@@ -86,7 +87,7 @@ function activeCandidates(
    const activationTime = attempt * interval;
    if (timeSeconds >= activationTime + card.active.durationSeconds) return [];
    const activationRateBonus = activationRateBonusAt(cardsInOrder, chart, activationTime);
-    const probability = Math.min(1, ((card.active.probabilityPercent ?? 100) / 100) * (1 + activationRateBonus / 100));
+    const probability = effectiveActiveProbability(card, activationRateBonus);
    const support = specialSupport + (card.scoreSupportPercent ?? 0) + passiveScoreSupportAt(cardsInOrder, memberIndex);
    return [{
      memberIndex,
@@ -0,0 +1,26 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { songOptions } from '../data/song-catalog.ts';
+
+const charts = [
+  { songId: 'm2', title: 'Zeta Song', difficulty: 'expert', difficultyLevel: 25 },
+  { songId: 'm1', title: 'Alpha Song', difficulty: 'expert', difficultyLevel: 30 },
+  { songId: 'm1', title: 'Alpha Song', difficulty: 'hard', difficultyLevel: 18 },
+  { songId: 'm3', title: 'Another Song', difficulty: 'expert', difficultyLevel: 25 },
+  { songId: 'm4', title: 'Unknown Song', difficulty: 'expert' }
+];
+
+test('악곡 목록은 기본적으로 영문 제목 알파벳순으로 정렬된다', () => {
+  assert.deepEqual(songOptions(charts, 'expert').map((song) => song.id), ['m1', 'm3', 'm4', 'm2']);
+});
+
+test('영문 제목은 대소문자 구분 없이 검색하고 곡 ID도 검색한다', () => {
+  assert.deepEqual(songOptions(charts, 'expert', 'ALPHA').map((song) => song.id), ['m1']);
+  assert.deepEqual(songOptions(charts, 'expert', 'm2').map((song) => song.id), ['m2']);
+});
+
+test('선택한 채보의 레벨로 난이도 낮은순과 높은순 정렬을 지원한다', () => {
+  assert.deepEqual(songOptions(charts, 'expert', '', 'difficulty-asc').map((song) => song.id), ['m3', 'm2', 'm1', 'm4']);
+  assert.deepEqual(songOptions(charts, 'expert', '', 'difficulty-desc').map((song) => song.id), ['m1', 'm3', 'm2', 'm4']);
+  assert.equal(songOptions(charts, 'hard')[0].difficultyLevel, 18);
+});
@@ -14,6 +14,8 @@ export type OptimizerCard = {
    durationSeconds: number;
    scoreUpPercent: number;
    probabilityPercent?: number;
+    /** 블루 보드처럼 액티브 기본 발동률에 더해지는 상시 발동률 UP 배율. */
+    activationRateUpPercent?: number;
  };
  special: {
    durationSeconds: number;
@@ -90,6 +92,7 @@ export type ExactSongChart = {
  difficulty: string;
  durationSeconds: number;
  scoreRatio: number | null;
+  scoreCalibrationSource?: 'measured' | 'local-estimated-v1' | string;
  notes: readonly ExactChartNote[];
  specialStartSeconds: readonly (number | null)[];
  singerType?: string | null;
@@ -9,8 +9,9 @@
  import { createInitialReleaseClock, synchronizeReleaseClock } from '$lib/data/release-clock.ts';
  import { releasedSongCharts } from '$lib/data/song-release.ts';
  import PresetManager from '$lib/components/PresetManager.svelte';
-  import { calculateBoardEffects, calculateUnitPower, countOptimizationCandidates, memoryParameterPermil, perfectNoteScoreFromPower, toOptimizerCard } from '$lib/engine/index.ts';
-  import type { CooldownReduction, EffectiveSkillWindow, ExactOptimizationResult, ExactSongChart, OptimizationProgress, ScoreAchievementProbabilities, SkillWindow } from '$lib/engine/index.ts';
+  import SongPicker from '$lib/components/SongPicker.svelte';
+  import { calculateBoardEffects, calculateExactScore, calculateUnitPower, countOptimizationCandidates, memoryParameterPermil, optimizeBoardConnectionCards, optimizeExactOrderAndCooldowns, perfectNoteScoreFromPower, toOptimizerCard } from '$lib/engine/index.ts';
+  import type { CooldownReduction, EffectiveSkillWindow, ExactOptimizationResult, ExactSongChart, OptimizableConnectionCard, OptimizationProgress, ScoreAchievementProbabilities, SkillWindow } from '$lib/engine/index.ts';
  import { USER_DATA_STORAGE_KEY } from '$lib/storage/browser-storage';
  import { createScoreOptimizerWorker } from '$lib/workers/create-score-optimizer-worker.ts';

@@ -19,6 +20,16 @@
  type CollectionState = Record<string, { owned?: boolean; awakening?: number }>;
  type MemberBoards = Record<string, string[]>;
  type BoardCards = Record<string, Record<string, string>>;
+  type ConnectionOptimizationProposal = {
+    placements: BoardCards;
+    assignments: { memberId: string; socketId: string; previousCardId: string | null; cardId: string | null }[];
+    beforeExpected: number;
+    afterExpected: number;
+    beforeMaximum: number;
+    afterMaximum: number;
+    beforeActivationRateUp: number;
+    afterActivationRateUp: number;
+  };
  type DisplayEffectiveWindow = SkillWindow & {
    baseScoreUpPercent: number;
    minScoreUpPercent: number;
@@ -52,6 +63,8 @@
  let charts = releasedSongCharts(allCharts, releaseNow);
  let songs = Array.from(new Map(charts.map((chart) => [chart.songId, { id: chart.songId, title: chart.title }])).values());
  const cardById = new Map(fiveStarCards.map((card) => [card.id, card]));
+  const allCardById = new Map(cardSummary.cards.map((card) => [card.id, card]));
+  const boardMembers = boardSummary.members;
  const blueGroupsByCharacter = Object.fromEntries(boardSummary.members.map((member) => [
    member.id,
    (boardSummary.models as Record<string, { groupId: string }[]>)[member.positionGroupId]
@@ -91,6 +104,11 @@
  let achievementProbabilities: ScoreAchievementProbabilities | undefined;
  let errorMessage = '';
  let analysisReady = false;
+  let connectionOptimizationRunning = false;
+  let connectionOptimizationProgress: { stage: string; completed: number; total: number } | null = null;
+  let connectionOptimizationError = '';
+  let connectionOptimizationProposal: ConnectionOptimizationProposal | null = null;
+  let connectionOptimizationSnapshot: BoardCards | null = null;

  $: charts = releasedSongCharts(allCharts, releaseNow);
  $: songs = Array.from(new Map(charts.map((chart) => [chart.songId, { id: chart.songId, title: chart.title }])).values());
@@ -136,6 +154,7 @@
  })();
  $: overallPower = unitPower.overallPower;
  $: perfectNoteScore = perfectNoteScoreFromPower(overallPower, selectedChart?.scoreRatio ?? null);
+  $: scoreCalibrationLabel = selectedChart?.scoreCalibrationSource === 'measured' ? '실측값' : '추정값';
  $: timelineDuration = selectedChart?.durationSeconds ?? 0;
  $: noteCountsBySecond = result ? countNotesBySecond(result, timelineDuration) : [];
  $: displayedEffectiveActiveWindows = mergeEffectiveActiveWindows(result?.effectiveActiveWindows ?? []);
@@ -411,14 +430,212 @@
      ...adapted,
      active: {
        ...adapted.active,
-        probabilityPercent: (adapted.active.probabilityPercent ?? 100) * (1 + activationRate / 100)
+        activationRateUpPercent: activationRate
      },
      scoreSupportPercent: unitPower.outfitScoreSupportPercent + boardEffects.scoreSupportPercent
    };
  }

+  function connectionScoreContext(placements: BoardCards, chartSummary: NonNullable<typeof selectedChart>) {
+    const localBoardEffects = calculateBoardEffects(boardSummary, effectiveMemberBoards, selectedSourceCards, leaderCharacterId, chartSummary, {
+      placements,
+      cards: connectionCards
+    }, { generationBonusByCardId });
+    const localUnitPower = calculateUnitPower(selectedCardIds.map((id, index) => ({
+      card: cardById.get(id)!, awakening: selectedAwakenings[index]
+    })), leaderOutfit, localBoardEffects, memoryPermil, memberPowerUpPercent);
+    const cards = selectedSourceCards.map((card, index) => {
+      const fixedReduction = fixedCooldownReductions[index];
+      const adapted = toOptimizerCard(
+        card,
+        selectedAwakenings[index] ?? 0,
+        fixedReduction === null || fixedReduction === undefined
+          ? localBoardEffects.allowedCooldownReductionsByCardId[card.id]
+          : [fixedReduction],
+        selectedSourceCards
+      );
+      return {
+        ...adapted,
+        active: { ...adapted.active, activationRateUpPercent: localBoardEffects.activationRateUpByCardId[card.id] ?? 0 },
+        scoreSupportPercent: localUnitPower.outfitScoreSupportPercent + localBoardEffects.scoreSupportPercent
+      };
+    });
+    return { cards, boardEffects: localBoardEffects, unitPower: localUnitPower };
+  }
+
+  function connectionSocketName(memberId: string, socketId: string): string {
+    const member = boardMembers.find((item) => item.id === memberId);
+    const socket = member
+      ? (boardSummary.models as Record<string, { groupId: string; x: number; y: number }[]>)[member.positionGroupId]?.find((position) => position.groupId === socketId)
+      : null;
+    if (!socket || (socket.x === 0 && socket.y === 0)) return '중앙';
+    if (socket.x < 0) return '왼쪽';
+    if (socket.x > 0) return '오른쪽';
+    return socket.y > 0 ? '위쪽' : '아래쪽';
+  }
+
+  function isBlueConnectionSocket(memberId: string, socketId: string): boolean {
+    const member = boardMembers.find((item) => item.id === memberId);
+    const socket = member
+      ? (boardSummary.models as Record<string, { groupId: string; x: number; y: number }[]>)[member.positionGroupId]?.find((position) => position.groupId === socketId)
+      : null;
+    return (socket?.x ?? 0) < 0;
+  }
+
+  function totalActivationRateUp(context: ReturnType<typeof connectionScoreContext>): number {
+    return Object.values(context.boardEffects.activationRateUpByCardId).reduce((total, value) => total + value, 0);
+  }
+
+  function saveBoardCardPlacements(placements: BoardCards): void {
+    const raw = localStorage.getItem(USER_DATA_STORAGE_KEY);
+    const stored = raw ? JSON.parse(raw) : {};
+    stored.boardCards = placements;
+    stored.updatedAt = new Date().toISOString();
+    localStorage.setItem(USER_DATA_STORAGE_KEY, JSON.stringify(stored));
+    boardCards = placements;
+  }
+
+  function clearConnectionOptimizationProposal(): void {
+    connectionOptimizationProposal = null;
+    connectionOptimizationError = '';
+  }
+
+  async function optimizeConnectionPlacements(): Promise<void> {
+    if (!result || !selectedChart || selectedSourceCards.length !== 5) return;
+    const analysisResult = result;
+    const chartSummary = selectedChart;
+    connectionOptimizationRunning = true;
+    connectionOptimizationProgress = { stage: '채보 준비 중', completed: 0, total: 0 };
+    connectionOptimizationError = '';
+    connectionOptimizationProposal = null;
+    try {
+      const chart = await loadExactSongChart(chartSummary.path);
+      const beforeContext = connectionScoreContext(boardCards, chartSummary);
+      const emptyContext = connectionScoreContext({}, chartSummary);
+      const orderedCards = (context: ReturnType<typeof connectionScoreContext>) => analysisResult.order.map((cardId) =>
+        context.cards.find((card) => card.id === cardId)!
+      );
+      const referenceScore = (context: ReturnType<typeof connectionScoreContext>) => calculateExactScore(
+        orderedCards(context), analysisResult.cooldownReductions, chart, {
+          perfectNoteScore: perfectNoteScoreFromPower(context.unitPower.overallPower, chartSummary.scoreRatio),
+          directSongScoreBonusPercent: context.boardEffects.directSongScoreBonusPercent
+        }
+      ).expectedScore;
+      const emptyScore = referenceScore(emptyContext);
+      const emptyActivationRateUp = totalActivationRateUp(emptyContext);
+      const beforeActivationRateUp = totalActivationRateUp(beforeContext);
+      const candidateCards = cardSummary.cards
+        .filter((card) => card.details.connect.length > 0 && collection[card.id]?.owned)
+        .map((card) => ({ id: card.id, awakening: collection[card.id]?.awakening ?? 0, connect: card.details.connect }));
+      if (candidateCards.length === 0) throw new Error('최적화에 사용할 보유 연결 카드가 없습니다.');
+      const placementMetricCache = new Map<string, { score: number; activationRateUp: number }>();
+      const placementMetrics = (card: OptimizableConnectionCard, memberId: string, socketId: string) => {
+        const effect = card.connect.find((entry) => entry.level === (card.awakening >= 5 ? 2 : 1)) ?? card.connect.at(-1);
+        const effectKey = effect ? `${effect.effectPermilUp}:${effect.extent.map((offset) => `${offset.x},${offset.y}`).join(';')}` : card.id;
+        const key = `${memberId}:${socketId}:${effectKey}`;
+        const cached = placementMetricCache.get(key);
+        if (cached) return cached;
+        const context = connectionScoreContext({ [memberId]: { [socketId]: card.id } }, chartSummary);
+        const metrics = {
+          score: referenceScore(context) - emptyScore,
+          activationRateUp: totalActivationRateUp(context) - emptyActivationRateUp
+        };
+        placementMetricCache.set(key, metrics);
+        return metrics;
+      };
+      const activeConnectionSlots = boardMembers.flatMap((member) => {
+        const positions = (boardSummary.models as Record<string, { groupId: string; x: number; y: number }[]>)[member.positionGroupId] ?? [];
+        const active = new Set(effectiveMemberBoards[member.id] ?? []);
+        const center = positions.find((position) => position.x === 0 && position.y === 0);
+        if (center) active.add(center.groupId);
+        return positions.filter((position) => active.has(position.groupId) && position.groupId.startsWith('S'))
+          .map((position) => ({ memberId: member.id, socketId: position.groupId }));
+      });
+      const totalPlacementChecks = candidateCards.length * activeConnectionSlots.length;
+      connectionOptimizationProgress = { stage: '카드별 배치 효과 계산 중', completed: 0, total: totalPlacementChecks };
+      let completedPlacementChecks = 0;
+      for (const card of candidateCards) {
+        for (const slot of activeConnectionSlots) {
+          placementMetrics(card, slot.memberId, slot.socketId);
+          completedPlacementChecks += 1;
+          if (completedPlacementChecks % 8 === 0 || completedPlacementChecks === totalPlacementChecks) {
+            connectionOptimizationProgress = { stage: '카드별 배치 효과 계산 중', completed: completedPlacementChecks, total: totalPlacementChecks };
+            await new Promise<void>((resolve) => requestAnimationFrame(() => resolve()));
+          }
+        }
+      }
+      connectionOptimizationProgress = { stage: '최적 조합 선택 중', completed: totalPlacementChecks, total: totalPlacementChecks };
+      await new Promise<void>((resolve) => requestAnimationFrame(() => resolve()));
+      const optimized = optimizeBoardConnectionCards(boardSummary, effectiveMemberBoards, candidateCards, {
+        placementWeight: (card, memberId, socketId) => placementMetrics(card, memberId, socketId).score,
+        placementPriorityWeight: (card, memberId, socketId) => isBlueConnectionSocket(memberId, socketId)
+          ? placementMetrics(card, memberId, socketId).activationRateUp
+          : 0
+      });
+      if (optimized.assignments.length === 0) throw new Error('현재 활성 노드에 효과를 주는 연결 카드 배치를 찾지 못했습니다.');
+      connectionOptimizationProgress = { stage: '최종 점수 검증 중', completed: totalPlacementChecks, total: totalPlacementChecks };
+      await new Promise<void>((resolve) => requestAnimationFrame(() => resolve()));
+      const afterContext = connectionScoreContext(optimized.placements, chartSummary);
+      const after = optimizeExactOrderAndCooldowns(afterContext.cards, chart, {
+        perfectNoteScore: perfectNoteScoreFromPower(afterContext.unitPower.overallPower, chartSummary.scoreRatio),
+        directSongScoreBonusPercent: afterContext.boardEffects.directSongScoreBonusPercent
+      });
+      const afterActivationRateUp = totalActivationRateUp(afterContext);
+      if (afterActivationRateUp + 1e-9 < beforeActivationRateUp) {
+        throw new Error('현재 배치보다 액티브 스킬 발동률 증가량이 낮아 기존 배치를 유지합니다.');
+      }
+      if (Math.abs(afterActivationRateUp - beforeActivationRateUp) < 1e-9 && after.expectedScore < analysisResult.expectedScore) {
+        throw new Error(`현재 배치의 예상 점수(${analysisResult.expectedScore.toLocaleString('ko-KR')})가 탐색 결과보다 높아 기존 배치를 유지합니다.`);
+      }
+      const changedAssignments = boardMembers.flatMap((member) => {
+        const before = boardCards[member.id] ?? {};
+        const afterPlacements = optimized.placements[member.id] ?? {};
+        return [...new Set([...Object.keys(before), ...Object.keys(afterPlacements)])]
+          .filter((socketId) => before[socketId] !== afterPlacements[socketId])
+          .map((socketId) => ({
+            memberId: member.id,
+            socketId,
+            previousCardId: before[socketId] ?? null,
+            cardId: afterPlacements[socketId] ?? null
+          }));
+      });
+      connectionOptimizationProposal = {
+        placements: optimized.placements,
+        assignments: changedAssignments,
+        beforeExpected: analysisResult.expectedScore,
+        afterExpected: after.expectedScore,
+        beforeMaximum: analysisResult.theoreticalMaxScore,
+        afterMaximum: after.theoreticalMaxScore,
+        beforeActivationRateUp,
+        afterActivationRateUp
+      };
+    } catch (error) {
+      connectionOptimizationError = error instanceof Error ? error.message : '연결 카드 최적화를 완료하지 못했습니다.';
+    } finally {
+      connectionOptimizationRunning = false;
+      connectionOptimizationProgress = null;
+    }
+  }
+
+  async function applyConnectionOptimization(): Promise<void> {
+    if (!connectionOptimizationProposal) return;
+    connectionOptimizationSnapshot = Object.fromEntries(Object.entries(boardCards).map(([memberId, placements]) => [memberId, { ...placements }]));
+    saveBoardCardPlacements(connectionOptimizationProposal.placements);
+    connectionOptimizationProposal = null;
+    await analyze();
+  }
+
+  async function undoConnectionOptimization(): Promise<void> {
+    if (!connectionOptimizationSnapshot) return;
+    saveBoardCardPlacements(connectionOptimizationSnapshot);
+    connectionOptimizationSnapshot = null;
+    connectionOptimizationProposal = null;
+    await analyze();
+  }
+
  async function analyze(): Promise<void> {
    errorMessage = '';
+    clearConnectionOptimizationProposal();
    result = null;
    achievementProbabilities = undefined;
    if (!worker || !selectedSong || !selectedChart) return;
@@ -561,11 +778,7 @@
    </div>

    <div class="song-fields">
-      <label>악곡
-        <select bind:value={selectedSongId} on:change={() => result = null}>
-          {#each songs as song}<option value={song.id}>{song.title}</option>{/each}
-        </select>
-      </label>
+      <div class="song-picker-field"><SongPicker {charts} {difficulty} bind:value={selectedSongId} on:change={() => result = null} /></div>
      <label>난이도
        <select bind:value={difficulty} on:change={() => result = null}>
          <option value="expert">Expert</option>
@@ -573,7 +786,7 @@
        </select>
      </label>
      <div class="power-summary"><span>자동 계산 종합력</span><strong>{overallPower.toLocaleString('ko-KR')}</strong></div>
-      <div class="chart-meta"><span>길이 {selectedChart?.durationSeconds ?? 0}초</span><span>노트 {selectedChart?.totalNotes?.toLocaleString('ko-KR') ?? 0}개</span><span>1노트 {Math.ceil(perfectNoteScore).toLocaleString('ko-KR')}점</span>{#if boardEffects.directSongScoreBonusPercent > 0}<span>가창 보너스 {boardEffects.directSongScoreBonusPercent}%</span>{/if}</div>
+      <div class="chart-meta"><span>길이 {selectedChart?.durationSeconds ?? 0}초</span><span>노트 {selectedChart?.totalNotes?.toLocaleString('ko-KR') ?? 0}개</span><span>1노트 {Math.ceil(perfectNoteScore).toLocaleString('ko-KR')}점 · {scoreCalibrationLabel}</span>{#if boardEffects.directSongScoreBonusPercent > 0}<span>가창 보너스 {boardEffects.directSongScoreBonusPercent}%</span>{/if}</div>
    </div>

    <div class="card-fields">
@@ -684,6 +897,45 @@
      </div>
      <p class="probability-guide">모든 노트를 PERFECT로 처리한다고 가정하고 액티브 발동 확률만 반영합니다. 100%는 정확 계산, 99%·95% 이상은 25,000회 반복 계산값이며 최고점에 영향을 주지 않는 발동 실패는 100% 달성 확률을 낮추지 않습니다.</p>

+      <section class="connection-optimizer" aria-labelledby="connection-optimizer-title">
+        <div class="connection-optimizer-heading">
+          <div><h3 id="connection-optimizer-title">연결 카드 최적화</h3><p>활성 노드는 유지하며, 파란색 영역은 액티브 발동률을 먼저 최대화한 뒤 예상 점수를 비교합니다.</p></div>
+          <div class="connection-optimizer-actions">
+            {#if connectionOptimizationSnapshot}<button type="button" disabled={running || connectionOptimizationRunning} on:click={undoConnectionOptimization}>직전 배치 복원</button>{/if}
+            <button type="button" class="primary" disabled={running || connectionOptimizationRunning} on:click={optimizeConnectionPlacements}>{connectionOptimizationRunning ? '배치 탐색 중…' : '보유 카드로 최적화'}</button>
+          </div>
+        </div>
+        {#if connectionOptimizationProgress}
+          <div class="connection-optimizer-progress" aria-live="polite">
+            <div><strong>{connectionOptimizationProgress.stage}</strong>{#if connectionOptimizationProgress.total > 0}<span>{connectionOptimizationProgress.completed.toLocaleString('ko-KR')} / {connectionOptimizationProgress.total.toLocaleString('ko-KR')}</span>{/if}</div>
+            {#if connectionOptimizationProgress.total > 0}<progress max={connectionOptimizationProgress.total} value={connectionOptimizationProgress.completed}></progress>{/if}
+          </div>
+        {/if}
+        {#if connectionOptimizationError}<p class="connection-optimizer-error" role="alert">{connectionOptimizationError}</p>{/if}
+        {#if connectionOptimizationProposal}
+          <div class="connection-proposal" aria-live="polite">
+            <div class="connection-score-comparison">
+              <span>예상 점수 <strong>{connectionOptimizationProposal.beforeExpected.toLocaleString('ko-KR')} → {connectionOptimizationProposal.afterExpected.toLocaleString('ko-KR')}</strong><b>{connectionOptimizationProposal.afterExpected >= connectionOptimizationProposal.beforeExpected ? '+' : ''}{(connectionOptimizationProposal.afterExpected - connectionOptimizationProposal.beforeExpected).toLocaleString('ko-KR')}</b></span>
+              <span>이론상 고점 <strong>{connectionOptimizationProposal.beforeMaximum.toLocaleString('ko-KR')} → {connectionOptimizationProposal.afterMaximum.toLocaleString('ko-KR')}</strong><b>{connectionOptimizationProposal.afterMaximum >= connectionOptimizationProposal.beforeMaximum ? '+' : ''}{(connectionOptimizationProposal.afterMaximum - connectionOptimizationProposal.beforeMaximum).toLocaleString('ko-KR')}</b></span>
+              <span>액티브 발동률 UP 합계 <strong>{connectionOptimizationProposal.beforeActivationRateUp.toLocaleString('ko-KR', { maximumFractionDigits: 2 })}% → {connectionOptimizationProposal.afterActivationRateUp.toLocaleString('ko-KR', { maximumFractionDigits: 2 })}%</strong><b>{connectionOptimizationProposal.afterActivationRateUp >= connectionOptimizationProposal.beforeActivationRateUp ? '+' : ''}{(connectionOptimizationProposal.afterActivationRateUp - connectionOptimizationProposal.beforeActivationRateUp).toLocaleString('ko-KR', { maximumFractionDigits: 2 })}%p</b></span>
+            </div>
+            {#if connectionOptimizationProposal.assignments.length > 0}
+              <div class="connection-assignment-list">
+                {#each connectionOptimizationProposal.assignments as assignment (`${assignment.memberId}:${assignment.socketId}`)}
+                  {@const member = boardMembers.find((item) => item.id === assignment.memberId)}
+                  {@const previousCard = assignment.previousCardId ? allCardById.get(assignment.previousCardId) : null}
+                  {@const card = assignment.cardId ? allCardById.get(assignment.cardId) : null}
+                  <span><small>{member?.name ?? assignment.memberId} · {connectionSocketName(assignment.memberId, assignment.socketId)}</small><strong>{previousCard ? cardLabel(previousCard) : '비어 있음'} → {card ? cardLabel(card) : '배치 해제'}</strong></span>
+                {/each}
+              </div>
+              <button type="button" class="apply-connection" on:click={applyConnectionOptimization}>변경 배치를 적용하고 다시 분석</button>
+            {:else}
+              <p class="connection-no-changes">현재 연결 카드 배치가 이미 최적입니다.</p>
+            {/if}
+          </div>
+        {/if}
+      </section>
+
      <section class="skill-timeline" aria-labelledby="timeline-title">
        <div class="timeline-heading">
          <div><h3 id="timeline-title">스킬 발동과 노트 분포</h3><p>멤버별 액티브와 실제 적용 구간, 스페셜 순서를 같은 시간축에서 비교합니다.</p></div>
@@ -774,11 +1026,12 @@
  label { display: grid; gap: 7px; color: #8f98a8; font-size: 14px; font-weight: 750; }
  select { width: 100%; min-width: 0; height: 42px; padding: 0 12px; border: 1px solid #343c49; border-radius: 9px; color: #e8ebf1; background: #11151b; font: inherit; }
  select:focus, .generation-input:focus { border-color: #d86f9c; outline: 3px solid rgb(216 111 156 / 14%); }
-  .song-fields { display: grid; grid-template-columns: minmax(0, 2fr) clamp(110px, 11vw, 170px) clamp(140px, 14vw, 220px); align-items: end; gap: 12px; margin-top: 22px; }
-  .power-summary { display: grid; gap: 4px; min-height: 42px; padding: 7px 11px; border-radius: 9px; background: #22202a; }
+  .song-fields { display: grid; grid-template-columns: minmax(0, 4fr) clamp(110px, 11vw, 170px) clamp(140px, 14vw, 220px); align-items: start; gap: 12px; margin-top: 22px; }
+  .song-picker-field { min-width: 0; }
+  .power-summary { display: grid; gap: 4px; min-height: 42px; margin-top: 25px; padding: 7px 11px; border-radius: 9px; background: #22202a; }
  .power-summary span { color: #929cab; font-size: 12px; font-weight: 750; }
  .power-summary strong { color: #f2a3c4; font-size: 16px; }
-  .chart-meta { display: flex; gap: 8px; height: 42px; align-items: center; }
+  .chart-meta { display: flex; grid-column: 1 / -1; gap: 8px; height: 42px; align-items: center; }
  .chart-meta span { padding: 7px 9px; border-radius: 7px; color: #adb5c2; background: #202631; font-size: 13px; white-space: nowrap; }
  .card-fields { display: grid; gap: 9px; margin-top: 18px; }
  .card-field-header, .card-field { display: grid; grid-template-columns: minmax(280px, 1fr) clamp(120px, 10vw, 160px) clamp(280px, 24vw, 360px) clamp(180px, 16vw, 240px); gap: 9px; }
@@ -838,6 +1091,34 @@
  .probability-grid strong { color: #e5e9ef; font-size: 20px; }
  .probability-grid small { color: #8d96a5; font-size: 12px; font-weight: 700; }
  .probability-guide { margin: 9px 2px 0; color: #7f8998; font-size: 12px; line-height: 1.55; }
+  .connection-optimizer { margin-top: 18px; padding: 18px; border: 1px solid #3b5445; border-radius: 13px; background: #151e19; }
+  .connection-optimizer-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
+  .connection-optimizer-heading h3 { margin: 0; color: #dce8e0; font-size: 17px; }
+  .connection-optimizer-heading p { margin: 5px 0 0; color: #8fa095; font-size: 13px; }
+  .connection-optimizer-actions { display: flex; flex: 0 0 auto; gap: 7px; }
+  .connection-optimizer button { min-height: 38px; padding: 8px 12px; border: 1px solid #46574c; border-radius: 8px; color: #becbc2; background: #202a23; font-weight: 800; cursor: pointer; }
+  .connection-optimizer button.primary, .connection-optimizer button.apply-connection { border-color: #69b184; color: #101913; background: #78c493; }
+  .connection-optimizer button:disabled { opacity: .55; cursor: default; }
+  .connection-optimizer-progress { display: grid; gap: 7px; margin-top: 14px; padding: 10px 12px; border: 1px solid #314238; border-radius: 9px; background: #111a15; }
+  .connection-optimizer-progress > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
+  .connection-optimizer-progress strong { color: #b9dac5; font-size: 13px; }
+  .connection-optimizer-progress span { color: #86a391; font-size: 12px; font-weight: 800; }
+  .connection-optimizer-progress progress { width: 100%; height: 8px; overflow: hidden; border: 0; border-radius: 999px; color: #78c493; background: #27322c; appearance: none; }
+  .connection-optimizer-progress progress::-webkit-progress-bar { border-radius: 999px; background: #27322c; }
+  .connection-optimizer-progress progress::-webkit-progress-value { border-radius: 999px; background: #78c493; }
+  .connection-optimizer-progress progress::-moz-progress-bar { border-radius: 999px; background: #78c493; }
+  .connection-optimizer-error { margin: 12px 0 0; color: #e3a0a0; font-size: 13px; }
+  .connection-proposal { display: grid; gap: 12px; margin-top: 14px; padding-top: 14px; border-top: 1px solid rgb(120 196 147 / 18%); }
+  .connection-score-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
+  .connection-score-comparison span { display: grid; gap: 5px; padding: 10px 12px; border-radius: 8px; color: #91a59a; background: #111813; font-size: 12px; }
+  .connection-score-comparison strong { color: #e0ebe4; font-size: 14px; }
+  .connection-score-comparison b { color: #82d09e; font-size: 13px; }
+  .connection-assignment-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 6px; max-height: 240px; overflow-y: auto; }
+  .connection-assignment-list > span { display: grid; gap: 3px; padding: 8px 10px; border: 1px solid #304038; border-radius: 7px; background: #121915; }
+  .connection-assignment-list small { color: #819287; font-size: 11px; }
+  .connection-assignment-list strong { overflow: hidden; color: #dbe7df; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
+  .connection-no-changes { margin: 0; padding: 10px 12px; border-radius: 8px; color: #a9cdb6; background: #18271d; font-size: 13px; font-weight: 750; }
+  .connection-proposal .apply-connection { justify-self: end; }
  .empty { color: #858f9f; font-size: 14px; line-height: 1.65; }
  .skill-timeline { margin-top: 22px; padding-top: 20px; border-top: 1px solid #2b313c; }
  .timeline-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 14px; }
@@ -881,8 +1162,8 @@
    main { width: calc(100% - 24px); padding-top: var(--page-content-top); }
    .page-header { align-items: flex-start; }
    .panel { padding: 17px; }
-    .song-fields { grid-template-columns: 1fr 100px; }
-    .power-summary { grid-column: 1 / -1; }
+    .song-fields { grid-template-columns: minmax(0, 1fr) 100px; }
+    .power-summary { grid-column: 1 / -1; margin-top: 0; }
    .chart-meta { grid-column: 1 / -1; height: auto; }
    .card-field { grid-template-columns: minmax(0, 1fr) 102px; }
    .card-field-header { display: none; }
@@ -896,6 +1177,10 @@
    .order-list li { grid-template-columns: 30px minmax(0, 1fr); }
    .reduction { grid-column: 2; justify-self: start; }
    .score-grid { grid-template-columns: 1fr; }
+    .connection-optimizer-heading { align-items: stretch; flex-direction: column; }
+    .connection-optimizer-actions { display: grid; }
+    .connection-score-comparison { grid-template-columns: 1fr; }
+    .connection-proposal .apply-connection { justify-self: stretch; }
    .timeline-heading { align-items: flex-start; flex-direction: column; }
    .timeline-legend { justify-content: flex-start; }
    .lane-label { flex-basis: 118px; min-width: 118px; }
@@ -10,12 +10,14 @@
  import { releasedSongCharts } from '$lib/data/song-release.ts';
  import AnalysisResultView from '$lib/components/AnalysisResultView.svelte';
  import PresetManager from '$lib/components/PresetManager.svelte';
+  import SongPicker from '$lib/components/SongPicker.svelte';
  import {
    additionalAwakeningsRequired,
    calculateBoardEffects,
    calculateUnitPower,
    combinationSearchLimits,
    countOptimizationCandidates,
+    effectiveActiveProbability,
    generateAnchoredCombinationCandidates,
    generateCombinationCandidates,
    memoryParameterPermil,
@@ -146,6 +148,7 @@
  $: songs = Array.from(new Map(charts.map((chart) => [chart.songId, { id: chart.songId, title: chart.title }])).values());
  $: if (!songs.some((song) => song.id === selectedSongId)) selectedSongId = songs[0]?.id ?? '';
  $: selectedChart = charts.find((chart) => chart.songId === selectedSongId && chart.difficulty === difficulty);
+  $: scoreCalibrationLabel = selectedChart?.scoreCalibrationSource === 'measured' ? '실측값' : '추정값';
  $: baselineChartMetadata = baselineState
    ? charts.find((chart) => chart.songId === baselineState!.songId && chart.difficulty === baselineState!.difficulty)
    : undefined;
@@ -492,7 +495,7 @@
  function roughSkillValues(card: CardRow) {
    const adapted = toOptimizerCard(card, awakeningForCard(card), [0], [card]);
    const activeValue = adapted.active.scoreUpPercent * adapted.active.durationSeconds /
-      Math.max(1, adapted.active.cooldownSeconds) * ((adapted.active.probabilityPercent ?? 100) / 100);
+      Math.max(1, adapted.active.cooldownSeconds) * effectiveActiveProbability(adapted);
    const specialValue = adapted.special.scoreUpPercent * adapted.special.durationSeconds / 100;
    return { adapted, activeValue, specialValue };
  }
@@ -502,7 +505,7 @@
    const skillPotential = cards.reduce((sum, card) => {
      const adapted = toOptimizerCard(card, awakeningForCard(card), [0], cards);
      const activeValue = adapted.active.scoreUpPercent * adapted.active.durationSeconds /
-        Math.max(1, adapted.active.cooldownSeconds) * ((adapted.active.probabilityPercent ?? 100) / 100);
+        Math.max(1, adapted.active.cooldownSeconds) * effectiveActiveProbability(adapted);
      const specialValue = adapted.special.scoreUpPercent * adapted.special.durationSeconds / 100;
      const activationValue = (adapted.special.activationRateUpPercent ?? 0) * adapted.special.durationSeconds / 100;
      const passiveValue = (adapted.passiveScoreSupportEffects ?? []).reduce((effectSum, effect) =>
@@ -687,12 +690,12 @@
      const activationRate = boardEffects.activationRateUpByCardId[card.id] ?? 0;
      return {
        ...adapted,
-        active: { ...adapted.active, probabilityPercent: (adapted.active.probabilityPercent ?? 100) * (1 + activationRate / 100) },
+        active: { ...adapted.active, activationRateUpPercent: activationRate },
        scoreSupportPercent: power.outfitScoreSupportPercent + boardEffects.scoreSupportPercent
      };
    });
    const skillPotential = optimizerCards.reduce((sum, card) => sum +
-      card.active.scoreUpPercent * card.active.durationSeconds / Math.max(1, card.active.cooldownSeconds) * ((card.active.probabilityPercent ?? 100) / 100) +
+      card.active.scoreUpPercent * card.active.durationSeconds / Math.max(1, card.active.cooldownSeconds) * effectiveActiveProbability(card) +
      card.special.scoreUpPercent * card.special.durationSeconds / 100 +
      (card.scoreSupportPercent ?? 0) +
      (card.passiveScoreSupportEffects ?? []).reduce((effectSum, effect) => effectSum + effect.percent * (effect.target === 'all' ? 5 : effect.targetCount ?? 1), 0), 0);
@@ -748,7 +751,7 @@
        const activationRate = boardEffects.activationRateUpByCardId[card.id] ?? 0;
        return {
          ...adapted,
-          active: { ...adapted.active, probabilityPercent: (adapted.active.probabilityPercent ?? 100) * (1 + activationRate / 100) },
+          active: { ...adapted.active, activationRateUpPercent: activationRate },
          scoreSupportPercent: power.outfitScoreSupportPercent + boardEffects.scoreSupportPercent
        };
      });
@@ -1035,9 +1038,9 @@
  <section class="panel" aria-labelledby="conditions-title">
    <div class="section-title"><div><span>01</span><h2 id="conditions-title">탐색 조건</h2></div><strong>{ownedCardsOnly ? '보유 5성 대상' : '5성 전체 대상'}</strong></div>
    <div class="song-fields">
-      <label>악곡<select bind:value={selectedSongId} on:change={() => result = null}>{#each songs as song}<option value={song.id}>{song.title}</option>{/each}</select></label>
+      <div class="song-picker-field"><SongPicker {charts} {difficulty} bind:value={selectedSongId} on:change={() => result = null} /></div>
      <label>난이도<select bind:value={difficulty} on:change={() => result = null}><option value="expert">Expert</option><option value="hard">Hard</option></select></label>
-      <div class="chart-meta"><span>길이 {selectedChart?.durationSeconds ?? 0}초</span><span>노트 {selectedChart?.totalNotes?.toLocaleString('ko-KR') ?? 0}개</span></div>
+      <div class="chart-meta"><span>길이 {selectedChart?.durationSeconds ?? 0}초</span><span>노트 {selectedChart?.totalNotes?.toLocaleString('ko-KR') ?? 0}개</span><span>점수 계수 · {scoreCalibrationLabel}</span></div>
    </div>
    <div class="candidate-fields">
      <div class="candidate-awakening">
@@ -1199,8 +1202,9 @@
  label { display: grid; gap: 7px; color: #8f98a8; font-size: 14px; font-weight: 750; }
  select, .number-input { width: 100%; min-width: 0; height: 42px; padding: 0 12px; border: 1px solid #343c49; border-radius: 9px; color: #e8ebf1; background: #11151b; font: inherit; }
  select:focus, .number-input:focus, .generation-input:focus { border-color: #d86f9c; outline: 3px solid rgb(216 111 156 / 14%); }
-  .song-fields { display: grid; grid-template-columns: minmax(0, 2fr) clamp(110px, 11vw, 170px) minmax(220px, .8fr); align-items: end; gap: 12px; margin-top: 22px; }
-  .chart-meta { display: flex; align-items: center; gap: 8px; height: 42px; }
+  .song-fields { display: grid; grid-template-columns: minmax(0, 4fr) clamp(110px, 11vw, 170px) minmax(220px, .8fr); align-items: start; gap: 12px; margin-top: 22px; }
+  .song-picker-field { min-width: 0; }
+  .chart-meta { display: flex; align-items: center; gap: 8px; height: 42px; margin-top: 25px; }
  .chart-meta span { padding: 7px 9px; border-radius: 7px; color: #adb5c2; background: #202631; font-size: 13px; white-space: nowrap; }
  .candidate-fields { display: grid; grid-template-columns: clamp(130px, 12vw, 180px) clamp(260px, 24vw, 380px); gap: 9px; margin-top: 18px; }
  .candidate-awakening { display: grid; gap: 7px; color: #8f98a8; font-size: 14px; font-weight: 750; }
@@ -1305,7 +1309,7 @@
    main { width: calc(100% - 24px); padding-top: var(--page-content-top); }
    .panel { padding: 17px; }
    .song-fields { grid-template-columns: 1fr 100px; }
-    .chart-meta { grid-column: 1 / -1; height: auto; }
+    .chart-meta { grid-column: 1 / -1; height: auto; margin-top: 0; }
    .candidate-fields { grid-template-columns: 1fr; }
    .fixed-column-headings { display: none; }
    .fixed-field { grid-template-columns: minmax(0, 1fr) 102px; }
@@ -58,6 +58,8 @@
  type AutomaticPlacementResult = {
    memberId: string;
    memberName: string;
+    socketId: string;
+    socketName: string;
    cardId: string;
    cardName: string;
    rarity: number;
@@ -155,7 +157,8 @@
    : [];
  $: efficiencyFormationReady = efficiencyFormation.cardIds.length === 5
    && efficiencyFormation.cardIds.every((id) => cardById.has(id))
-    && new Set(efficiencyFormation.cardIds.map((id) => cardById.get(id)?.characterId)).size === 5;
+    && new Set(efficiencyFormation.cardIds.map((id) => cardById.get(id)?.characterId)).size === 5
+    && efficiencyFormation.cardIds.some((id) => cardById.get(id)?.characterId === efficiencyFormation.leaderCharacterId);
  $: dataView = $page.url.pathname.endsWith('/cards') ? 'cards' : $page.url.pathname.endsWith('/boards') ? 'boards' : 'home';
  onMount(() => {
    try {
@@ -241,11 +244,12 @@

  function importAnalysisFormation() {
    if (!savedAnalysis) return;
+    const analysis = savedAnalysis;
    saveEfficiencyFormation({
-      cardIds: [...savedAnalysis.cardIds],
-      awakenings: savedAnalysis.awakenings.map(normalizeEfficiencyAwakening),
-      leaderCharacterId: savedAnalysis.leaderCharacterId,
-      leaderOutfitCardId: savedAnalysis.leaderOutfitCardId,
+      cardIds: [...analysis.cardIds],
+      awakenings: analysis.awakenings.map(normalizeEfficiencyAwakening),
+      leaderCharacterId: analysis.leaderCharacterId,
+      leaderOutfitCardId: analysis.leaderOutfitCardId,
      coreCubeFreeOnly: efficiencyFormation.coreCubeFreeOnly
    });
  }
@@ -570,7 +574,7 @@
    }, { points: 0, greenCubes: 0, greenCoreCubes: 0 });
  }

-  function currentFormationPower(memberBoards: Record<string, string[]>): number {
+  function currentFormationPower(memberBoards: Record<string, string[]>, boardCards: BoardCardPlacements = userData.boardCards): number {
    if (!efficiencyFormationReady) return 0;
    const members = efficiencyFormation.cardIds.map((id, index) => ({
      card: cardById.get(id)!,
@@ -584,7 +588,7 @@
      connect: card.details.connect
    }));
    const boardEffects = calculateBoardEffects(boardSummary, memberBoards, sourceCards, efficiencyFormation.leaderCharacterId, null, {
-      placements: userData.boardCards,
+      placements: boardCards,
      cards: connections
    });
    const leaderOutfit = cardById.get(efficiencyFormation.leaderOutfitCardId)?.details.costume ?? null;
@@ -626,15 +630,6 @@
      || right.cost.greenCubes - left.cost.greenCubes;
  }

-  function upgradeBeatsRemoval(upgrade: GreenNodeEfficiency, removal: GreenNodeEfficiency): boolean {
-    const cubeDifference = upgrade.greenCubeEfficiency - removal.greenCubeEfficiency;
-    if (Math.abs(cubeDifference) > 1e-9) return cubeDifference > 0;
-    if (upgrade.cost.greenCoreCubes === 0 && removal.cost.greenCoreCubes > 0) return true;
-    if (upgrade.cost.greenCoreCubes > 0 && removal.cost.greenCoreCubes === 0) return false;
-    if (upgrade.cost.greenCoreCubes === 0 && removal.cost.greenCoreCubes === 0) return false;
-    return upgrade.greenCoreCubeEfficiency > removal.greenCoreCubeEfficiency;
-  }
-
  async function analyzeGreenNodeEfficiency() {
    if (!efficiencyFormationReady) {
      greenEfficiencyError = '서로 다른 멤버의 5성 카드 5장을 모두 선택해 주세요.';
@@ -702,11 +697,9 @@
      }

      const sortedRemovals = removals.sort(compareRemovalEfficiency);
-      const removalThreshold = sortedRemovals[0];
      greenEfficiencyResult = {
        basePower,
-        upgrades: upgrades.sort(compareUpgradeEfficiency)
-          .filter((upgrade) => !removalThreshold || upgradeBeatsRemoval(upgrade, removalThreshold)),
+        upgrades: upgrades.sort(compareUpgradeEfficiency),
        removals: sortedRemovals
      };
    } catch (error) {
@@ -818,45 +811,37 @@
      if (!socket || userData.boardCards[member.id]?.[socket.groupId]) return [];
      return [{ member, socket }];
    });
-
    if (candidateCards.length === 0) {
      showMessage('자동 배치에 사용할 수 있는 미배치 보유 카드가 없습니다.', true);
      return;
    }
    if (emptyGreenSlots.length === 0) {
-      showMessage('비어 있는 초록색 카드 슬롯이 없습니다. 기존 배치는 변경하지 않았습니다.');
+      showMessage('비어 있는 중앙 연결 노드가 없습니다. 기존 배치는 변경하지 않았습니다.');
      return;
    }
-
-    const weights = candidateCards.map((card) => emptyGreenSlots.map(({ member, socket }) => greenSlotScore(member, socket, card)));
-    const matches = maximumWeightMatching(weights);
+    const matches = maximumWeightMatching(candidateCards.map((card) =>
+      emptyGreenSlots.map(({ member, socket }) => greenSlotScore(member, socket, card))
+    ));
    if (matches.length === 0) {
-      showMessage('활성화된 초록 노드에 효과를 주는 배치 조합을 찾지 못했습니다.', true);
+      showMessage('활성화된 초록 노드에 효과를 주는 중앙 배치를 찾지 못했습니다.', true);
      return;
    }
-
    automaticPlacementSnapshot = cloneBoardCards(userData.boardCards);
    const boardCards = cloneBoardCards(userData.boardCards);
-    const placementResult: AutomaticPlacementResult[] = [];
-    for (const match of matches) {
+    automaticPlacementResult = matches.map((match) => {
      const card = candidateCards[match.rowIndex];
-      const slot = emptyGreenSlots[match.columnIndex];
-      if (!card || !slot) continue;
-      boardCards[slot.member.id] = { ...(boardCards[slot.member.id] ?? {}), [slot.socket.groupId]: card.id };
-      placementResult.push({
-        memberId: slot.member.id,
-        memberName: slot.member.name,
-        cardId: card.id,
-        cardName: cardLabel(card),
-        rarity: card.rarity
-      });
-    }
-    automaticPlacementResult = placementResult.sort((left, right) =>
+      const { member, socket } = emptyGreenSlots[match.columnIndex];
+      boardCards[member.id] = { ...(boardCards[member.id] ?? {}), [socket.groupId]: card.id };
+      return {
+        memberId: member.id, memberName: member.name, socketId: socket.groupId, socketName: '중앙',
+        cardId: card.id, cardName: cardLabel(card), rarity: card.rarity
+      };
+    }).sort((left, right) =>
      (boardMembers.find((member) => member.id === left.memberId)?.order ?? Number.MAX_SAFE_INTEGER)
      - (boardMembers.find((member) => member.id === right.memberId)?.order ?? Number.MAX_SAFE_INTEGER)
    );
    persist({ ...userData, boardCards });
-    showMessage(`기존 배치를 유지하고 초록색 빈 슬롯 ${matches.length}곳에 보유 카드를 최적 배치했습니다.`);
+    showMessage(`기존 배치를 유지하고 중앙 연결 노드 ${matches.length}곳에 보유 카드를 자동 배치했습니다.`);
  }

  function undoAutomaticPlacement() {
@@ -865,7 +850,7 @@
    automaticPlacementSnapshot = null;
    automaticPlacementResult = [];
    persist({ ...userData, boardCards });
-    showMessage('방금 실행한 초록색 카드 자동 배치를 취소했습니다.');
+    showMessage('방금 실행한 중앙 연결 노드 자동 배치를 취소했습니다.');
  }

  function cardLabel(card: CardSummary): string {
@@ -875,7 +860,7 @@
  function placedCardName(cardId: string | undefined): string {
    if (!cardId) return '연결 노드';
    const card = connectCardById.get(cardId);
-    return card ? cardLabel(card) : cardId;
+    return card ? `${card.rarity}★ ${cardLabel(card)}` : cardId;
  }

  function connectionBoostsForMember(
@@ -917,6 +902,7 @@
  function assignBoardCard(cardId: string) {
    if (!selectedSocketGroupId) return;
    automaticPlacementSnapshot = null;
+    automaticPlacementResult = [];
    const boardCards = Object.fromEntries(Object.entries(userData.boardCards).map(([memberId, placements]) => [memberId, { ...placements }]));
    for (const [memberId, placements] of Object.entries(boardCards)) {
      for (const [socketId, placedCardId] of Object.entries(placements)) {
@@ -932,6 +918,7 @@
  function removeBoardCard() {
    if (!selectedSocketGroupId) return;
    automaticPlacementSnapshot = null;
+    automaticPlacementResult = [];
    const placements = { ...(userData.boardCards[selectedMemberId] ?? {}) };
    delete placements[selectedSocketGroupId];
    const boardCards = { ...userData.boardCards };
@@ -1168,7 +1155,7 @@
    <div class="automatic-placement">
      <div>
        <strong>간편 설정</strong>
-        <small>모든 멤버의 기본 초록 노드를 활성화하거나, 보유 카드를 중앙 연결 노드의 빈 슬롯에 자동 배치합니다.</small>
+        <small>모든 멤버의 기본 초록 노드를 활성화하거나, 기존 배치를 유지한 채 중앙 연결 노드의 빈 슬롯에 보유 카드를 자동 배치합니다.</small>
      </div>
      <div class="automatic-placement-actions">
        <button type="button" on:click={activateCommonGreenNodesForAllMembers}>모든 멤버 초록 3칸 활성화</button>
@@ -1271,7 +1258,7 @@
        <div class="efficiency-columns">
          <section class="efficiency-column upgrade" aria-labelledby="upgrade-efficiency-title">
            <div class="efficiency-column-heading">
-              <div><h3 id="upgrade-efficiency-title">우선 활성화</h3><p>초기화 검토 1순위보다 효율이 높은 노드만 표시</p></div>
+              <div><h3 id="upgrade-efficiency-title">우선 활성화</h3><p>초기화 효율보다 낮은 후보도 포함해 효율순으로 최대 20개 표시</p></div>
            </div>
            {#if greenEfficiencyResult.upgrades.length > 0}
              <div class="efficiency-list">
@@ -1367,7 +1354,7 @@
                class:efficiency-focus={position.groupId === efficiencyFocusGroupId}
                style={`left: ${point.x}px; top: ${point.y}px; width: ${size}px; height: ${size}px;`}
                title={`${boardNodeLabel(node.type)} · ${boardEffectDescription(node.effect, selectedBoardMember.name) || placedCardName(selectedBoardCardPlacements[position.groupId])}${selectedConnectionBoosts[position.groupId] ? ` · ${active ? '연결 효과 적용' : '연결 범위'} +${selectedConnectionBoosts[position.groupId].percent}%` : ''}`}
-                aria-label={`${boardNodeLabel(node.type)} ${node.grade}등급 노드, ${active ? '활성화됨' : '비활성화됨'}${selectedConnectionBoosts[position.groupId] ? `, 연결 ${active ? '효과 적용 중' : '범위에 포함'}` : ''}`}
+                aria-label={`${boardNodeLabel(node.type)} ${node.grade}등급 노드, ${active ? '활성화됨' : '비활성화됨'}${node.type === 'connection' && selectedBoardCardPlacements[position.groupId] ? `, 배치 카드 ${placedCardName(selectedBoardCardPlacements[position.groupId])}` : ''}${selectedConnectionBoosts[position.groupId] ? `, 연결 ${active ? '효과 적용 중' : '범위에 포함'}` : ''}`}
                aria-pressed={active}
                on:click={() => handleBoardNodeClick(position.groupId, node)}
              >
@@ -1380,7 +1367,12 @@
                {#if boardEffectIcon(node)}<img class="board-node-icon" src={boardEffectIcon(node) ?? ''} alt="" draggable="false" />{/if}
                {#if node.type === 'connection' && selectedBoardCardPlacements[position.groupId]}
                  {@const placedCard = connectCardById.get(selectedBoardCardPlacements[position.groupId])}
-                  {#if placedCard}<span class="socket-card" aria-hidden="true">{placedCard.name.slice(0, 2)}</span>{/if}
+                  {#if placedCard}
+                    <span class="socket-card" aria-hidden="true">
+                      <span class="socket-card-name">{placedCard.name.slice(0, 2)}</span>
+                      <small class:rarity-five={placedCard.rarity === 5}>{placedCard.rarity}★</small>
+                    </span>
+                  {/if}
                {/if}
              </button>
            {/if}
@@ -1564,7 +1556,7 @@
  .automatic-placement-result-item span { color: #91a59a; font-size: 12px; }
  .automatic-placement-result-item b { display: flex; align-items: center; gap: 7px; min-width: 0; color: #dbe8df; font-size: 13px; }
  .automatic-placement-result-item i { flex: 0 0 auto; color: #e7bd70; font-size: 11px; font-style: normal; }
-  .green-efficiency { order: 2; margin: 18px 0 0; padding: 0 16px 16px; border: 1px solid #394453; border-radius: 16px; background: #151b23; }
+  .green-efficiency { order: 3; margin: 18px 0 0; padding: 0 16px 16px; border: 1px solid #394453; border-radius: 16px; background: #151b23; }
  .green-efficiency > summary { display: flex; align-items: center; min-height: 62px; margin: 0 -16px; padding: 12px 16px; color: #dce6e0; cursor: pointer; list-style: none; }
  .green-efficiency > summary::-webkit-details-marker { display: none; }
  .green-efficiency > summary:hover { background: rgb(255 255 255 / 3%); }
@@ -1657,7 +1649,10 @@
  .board-node.connect-applied::after { inset: -8px; border: 4px solid #fff; }
  .board-node.connect-applied::before { content: '+'; position: absolute; z-index: 4; top: -13px; right: -13px; display: grid; place-items: center; width: 19px; height: 19px; border: 2px solid #151a22; border-radius: 50%; color: #111820; background: #fff; font-size: 13px; font-weight: 950; line-height: 1; pointer-events: none; }
  .board-node.efficiency-focus { z-index: 6; outline: 4px solid #fff; outline-offset: 6px; border-radius: 50%; }
-  .socket-card { position: absolute; inset: 19%; z-index: 2; display: grid; place-items: center; overflow: hidden; border-radius: 50%; color: #fff; background: #3b2d46; font-size: 12px; font-weight: 900; line-height: 1; pointer-events: none; }
+  .socket-card { position: absolute; inset: 19%; z-index: 2; pointer-events: none; }
+  .socket-card-name { display: grid; width: 100%; height: 100%; place-items: center; overflow: hidden; border-radius: 50%; color: #fff; background: #3b2d46; font-size: 12px; font-weight: 900; line-height: 1; }
+  .socket-card small { position: absolute; right: -12px; bottom: -8px; min-width: 24px; padding: 2px 4px; border: 2px solid #151a22; border-radius: 999px; color: #fff; background: #7562c9; font-size: 9px; font-weight: 950; line-height: 1.1; white-space: nowrap; }
+  .socket-card small.rarity-five { background: #d96f9d; }
  .board-node:hover { z-index: 4; transform: translate(-50%, -50%) scale(1.1); }
  .board-node.center { cursor: default; }
  .board-node:focus-visible { z-index: 5; outline: 3px solid rgb(255 255 255 / 55%); outline-offset: 3px; border-radius: 50%; }
--- a/Show More
+++ b/Show More