{"format":"murdoku-puzzle/1","id":"chess","version":1,"difficulty":"expert","level":10,"size":{"rows":16,"cols":16},"languages":["en","hu","de","fr","es","it","nl","pl","pt","ro","ca","cs","fi","vi","tr","el","ru","uk","ar","ko","ja","zh-Hans","zh-Hant"],"defaultLanguage":"en","title":"チェスクラブ","tagline":"コルヴィン・チェスクラブ · 土曜の夜 · 選手権の最終ラウンド","author":"mathace","concept":"Murdoku – Manuel Garand (murdoku.com); unofficial fan-made case","created":"2026-09-24","story":"コルヴィン・チェスクラブ選手権の最終ラウンド、土曜の夜。九時、主任審判は表彰式の告知のために時計を止めた――そして第一盤の対局が行われていた図書室で、現チャンピオンのVladimirが自分のチェス盤のそばで死んでいるのが見つかった。盤上には局面がそのまま残っていた。クラブには十六人がいた：四つの未完の対局を戦う選手八人、大会関係者二人、カフェのスタッフ二人、観客四人。チャンピオンの向かいに誰が座っていたのか、見た者はいない。すべての供述を読み、どの四つの盤で対局が行われていたかを突き止め、見取り図の上で全員のマスを見つけ、犯人を暴け――図書室でVladimirと二人きりだった対戦相手を。","rules":{"standard":["どの<b>行</b>にもどの<b>列</b>にも、ちょうど<b>一人</b>がいる。誰かを置いたら、その行と列を丸ごと消そう。","<b>「隣」</b> = 真左・真右・真上・真下で、かつ<b>同じエリア内</b>。物のあるマス（チェス盤、テーブル、本棚、カウンター、スクリーン…）にはいられない。椅子、スツール、ベンチ、安楽椅子、ソファにはいられる。エリアの<b>角</b>とは、そのエリアのマスのうち、水平方向の一辺と垂直方向の一辺で外側（別のエリアか図面の端）に接しているもののことだ。","<i>「誰もいないエリアのすぐ隣」</i> = 空のエリアと――真左・真右・真上・真下で、壁越しに――直接接しているマス。","方角は行と列を指し、同一直線上である必要はない：<i>「彼のちょうど1行北に女性がいた」</i> = 真上の行の人物が女性、列は問わない；<i>「Adrianより北に」</i> = より上の行、列は問わない。","犯人は<b>被害者と二人きり</b>だった：そのエリアには他に誰もいなかった。"],"special":["<b>四つの対局：</b>クラブにはチェス盤が八つあり、<b>ちょうど四つの対局</b>が行われていた。対局中の盤の隣には<b>ちょうど二人――二人の対戦相手</b>がいた。それ以外のどの盤の隣にも<b>誰も</b>いなかった。<b>すべての選手はチェス盤の隣にいた</b>。大会関係者、カフェのスタッフ、観客が盤の隣にいることは決してなかった。","<b>盤の両側：</b>どの行にもどの列にも一人しかいないので、一つの盤の二人の対戦相手は必ずその盤の<b>行と列</b>を占める――一人は盤の隣でその行に、もう一人はその列にいる。したがって、同じ行または同じ列にある二つの盤は、同時に対局中にはなれない。供述中の<i>「私の相手」</i>とは、同じ盤の隣にいるもう一人のことだ。"]},"roleNames":{"player":"選手","official":"大会関係者","staff":"カフェのスタッフ","spectator":"観客","victim":"被害者"},"personGroups":[{"id":"players","name":"選手たち","persons":["A","B","C","D","E","F","G","V"]},{"id":"officials","name":"大会関係者","persons":["H","I"]},{"id":"staff","name":"カフェのスタッフ","persons":["J","K"]},{"id":"spectators","name":"観客","persons":["L","M","N","O"]}],"map":{"groups":[],"gaps":[],"areas":[{"id":"Foyer","cells":[[1,1],[1,2],[1,3],[1,4],[1,5],[2,1],[2,2],[2,3],[2,4],[3,3],[3,4]],"fill":"#e4e0d2","pattern":"tiles","labelAt":[1,3],"name":"ホワイエ"},{"id":"Cloakroom","cells":[[3,1],[3,2],[4,1],[4,2]],"fill":"#d8d4c8","pattern":"tiles","labelAt":[4,1.5],"name":"クローク"},{"id":"Cafe","cells":[[1,6],[1,7],[1,8],[1,9],[1,10],[1,11],[1,12],[1,13],[2,5],[2,6],[2,7],[2,8],[2,9],[2,10],[2,11],[2,12],[2,13],[3,5],[3,6],[3,7],[3,8],[3,9],[3,10],[3,11],[3,12],[3,13],[3,14],[4,7],[4,8],[4,9],[4,10],[4,11]],"fill":"#e9dcd2","pattern":"boards","labelAt":[2,8],"name":"カフェ"},{"id":"Kitchen","cells":[[1,14],[1,15],[1,16],[2,14],[2,15],[2,16],[3,15],[3,16]],"fill":"#e2e6e2","pattern":"tiles","labelAt":[3,15.5],"name":"キッチン"},{"id":"Tournament 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fill=\"#b9b6ae\" stroke=\"#5b5852\"/><ellipse cx=\"23\" cy=\"14\" rx=\"10\" ry=\"4\" fill=\"#9fd3ea\" stroke=\"#4a7c95\"/><path d=\"M23 4 q-6 6 -4 10 M23 4 q6 6 4 10\" fill=\"none\" stroke=\"#7fb8d0\" stroke-width=\"2\"/>"},"statue":{"occupiable":false,"name":"彫像","icon":"<rect x=\"13\" y=\"32\" width=\"20\" height=\"9\" fill=\"#b9b6ae\" stroke=\"#5b5852\" stroke-width=\"1.5\"/><circle cx=\"23\" cy=\"9\" r=\"5\" fill=\"#d9d5cc\" stroke=\"#8c8a82\"/><path d=\"M16 15 h14 l2 17 h-18 z\" fill=\"#d9d5cc\" stroke=\"#8c8a82\" stroke-width=\"1.2\"/>"}},"wallTypes":{},"objects":[{"cell":[1,1],"type":"rack"},{"cell":[1,5],"type":"plant"},{"cell":[1,6],"type":"counter"},{"cell":[1,7],"type":"counter"},{"cell":[1,8],"type":"kettle"},{"cell":[1,13],"type":"vending"},{"cell":[1,14],"type":"shelf"},{"cell":[1,16],"type":"stove"},{"cell":[2,1],"type":"painting"},{"cell":[2,9],"type":"chair"},{"cell":[2,10],"type":"table"},{"cell":[2,11],"type":"chair"},{"cell":[2,16],"type":"sink"},{"cell":[3,1],"type":"rack"},{"cell":[3,7],"type":"chessboard"},{"cell":[3,11],"type":"chair"},{"cell":[3,12],"type":"table"},{"cell":[3,13],"type":"chair"},{"cell":[4,6],"type":"plant"},{"cell":[4,11],"type":"plant"},{"cell":[4,12],"type":"bookcase"},{"cell":[4,13],"type":"bookcase"},{"cell":[4,16],"type":"tv"},{"cell":[5,3],"type":"chessboard"},{"cell":[5,8],"type":"chessboard"},{"cell":[5,11],"type":"tv"},{"cell":[5,12],"type":"chair"},{"cell":[6,7],"type":"chair"},{"cell":[6,14],"type":"chessboard"},{"cell":[7,2],"type":"table"},{"cell":[7,10],"type":"desk"},{"cell":[7,12],"type":"table"},{"cell":[7,13],"type":"chair"},{"cell":[8,4],"type":"chessboard"},{"cell":[8,8],"type":"chair"},{"cell":[8,10],"type":"chair"},{"cell":[8,12],"type":"plant"},{"cell":[9,1],"type":"vending"},{"cell":[9,4],"type":"bench"},{"cell":[9,11],"type":"lamp"},{"cell":[9,13],"type":"trophy"},{"cell":[9,16],"type":"cabinet"},{"cell":[10,3],"type":"chessboard"},{"cell":[10,8],"type":"chessboard"},{"cell":[10,12],"type":"globe"},{"cell":[10,15],"type":"trophy"},{"cell":[11,1],"type":"bookcase"},{"cell":[11,2],"type":"bookcase"},{"cell":[11,3],"type":"bookcase"},{"cell":[11,6],"type":"table"},{"cell":[11,7],"type":"stool"},{"cell":[11,10],"type":"lamp"},{"cell":[11,11],"type":"plant"},{"cell":[11,13],"type":"tv"},{"cell":[11,16],"type":"painting"},{"cell":[12,6],"type":"cabinet"},{"cell":[12,10],"type":"safe"},{"cell":[12,13],"type":"sofa"},{"cell":[12,14],"type":"sofa"},{"cell":[13,2],"type":"chessboard"},{"cell":[13,7],"type":"desk"},{"cell":[13,8],"type":"chair"},{"cell":[13,12],"type":"table"},{"cell":[13,15],"type":"armchair"},{"cell":[14,4],"type":"lamp"},{"cell":[14,5],"type":"shelf"},{"cell":[14,9],"type":"cabinet"},{"cell":[14,12],"type":"lamp"},{"cell":[14,13],"type":"plant"},{"cell":[14,16],"type":"statue"},{"cell":[15,3],"type":"armchair"},{"cell":[15,4],"type":"plant"},{"cell":[15,11],"type":"umbrella"},{"cell":[15,14],"type":"bench"},{"cell":[16,1],"type":"bookcase"},{"cell":[16,4],"type":"planter"},{"cell":[16,6],"type":"bench"},{"cell":[16,10],"type":"fountain"},{"cell":[16,16],"type":"planter"}],"wallFeatures":[],"extras":[],"cellSize":46},"persons":[{"id":"A","name":"Adrian","gender":"M","role":"player","color":"#c62828","avatar":{"bg":"#2f4858","skin":"#f1c8a5","hair":"#5a3a22","style":"short","shirt":"#264653","headband":"#f0b429"},"clue":"彼は<b>大会ホール</b>にいた。","job":"ジュニアチャンピオン","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Adrian\"><rect width=\"80\" height=\"80\" fill=\"#2f4858\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#264653\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f1c8a5\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f1c8a5\"/><path d=\"M26 32 Q26 15 40 15 Q54 15 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#5a3a22\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><rect x=\"26\" y=\"23\" width=\"28\" height=\"5\" rx=\"2\" fill=\"#f0b429\"/></svg>","solverRole":"player","constraints":[{"type":"area","areas":["Tournament Hall"]},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"B","name":"Bernadette","gender":"F","role":"player","color":"#2e7d32","avatar":{"bg":"#5b2c6f","skin":"#f6d8c0","hair":"#d9b464","style":"bun","shirt":"#8e44ad","glasses":true},"clue":"彼女のエリアには<b>ベンチがなかった</b>。","job":"クラブの幹事","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Bernadette\"><rect width=\"80\" height=\"80\" fill=\"#5b2c6f\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#8e44ad\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f6d8c0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f6d8c0\"/><circle cx=\"40\" cy=\"15\" r=\"7\" fill=\"#d9b464\"/><path d=\"M26 32 Q26 16 40 16 Q54 16 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#d9b464\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"34\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><circle cx=\"46\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><line x1=\"39\" y1=\"35\" x2=\"41\" y2=\"35\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/></svg>","solverRole":"player","constraints":[{"type":"not_area_has","obj":"bench"},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"C","name":"Casimir","gender":"M","role":"player","color":"#1565c0","avatar":{"bg":"#7a6a3c","skin":"#e7b98f","hair":"#c9c3b8","style":"bald","shirt":"#5d4037","mustache":true},"clue":"彼の<b>行</b>のどこかに<b>チェス盤</b>があった。彼の<b>相手</b>は<b>男性</b>だった。","job":"ベテラン","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Casimir\"><rect width=\"80\" height=\"80\" fill=\"#7a6a3c\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#5d4037\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e7b98f\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e7b98f\"/><path d=\"M26 30 Q26 22 30 20 L30 34 Q26 34 26 30 Z\" fill=\"#c9c3b8\"/><path d=\"M54 30 Q54 22 50 20 L50 34 Q54 34 54 30 Z\" fill=\"#c9c3b8\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><path d=\"M33 41 Q40 37 47 41 Q40 43 33 41 Z\" fill=\"#3a2a1c\"/></svg>","solverRole":"player","constraints":[{"type":"row_has","obj":"chessboard"},{"type":"someone_share_object","obj":"chessboard","gender":"M"},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"D","name":"Denise","gender":"F","role":"player","color":"#6a1b9a","avatar":{"bg":"#1b2a33","skin":"#f0cdb0","hair":"#2b1c14","style":"bob","shirt":"#c0392b","earrings":true},"clue":"彼女は<b>男性と二人きり</b>だった。","job":"通信チェスの王者","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Denise\"><rect width=\"80\" height=\"80\" fill=\"#1b2a33\"/><path d=\"M22 40 Q22 14 40 14 Q58 14 58 40 L58 58 L22 58 Z\" fill=\"#2b1c14\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#c0392b\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f0cdb0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f0cdb0\"/><path d=\"M26 36 Q26 16 40 16 Q54 16 54 36 Q52 24 40 24 Q28 24 26 36 Z\" fill=\"#2b1c14\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"26\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/><circle cx=\"54\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/></svg>","solverRole":"player","constraints":[{"type":"with_gender","gender":"M","exact":true},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"E","name":"Emmett","gender":"M","role":"player","color":"#e65100","avatar":{"bg":"#3d5a6e","skin":"#d9a57a","hair":"#1c1a1a","style":"curly","shirt":"#1b1b1b","beanie":"#000000"},"clue":"彼のエリアには<b>男性</b>がいた。","job":"ブリッツの名手","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Emmett\"><rect width=\"80\" height=\"80\" fill=\"#3d5a6e\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#1b1b1b\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#d9a57a\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#d9a57a\"/><path d=\"M25 34 q-3 -8 4 -10 q0 -8 8 -7 q3 -4 8 -1 q6 -3 9 3 q7 0 5 8 q4 4 -1 9 q-6 -14 -16 -12 q-9 -1 -17 10 Z\" fill=\"#1c1a1a\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><path d=\"M24 31 Q24 11 40 11 Q56 11 56 31 Q48 21 40 21 Q32 21 24 31 Z\" fill=\"#000000\"/><rect x=\"23\" y=\"26\" width=\"34\" height=\"6\" rx=\"3\" fill=\"#000000\" stroke=\"rgba(0,0,0,.18)\"/><circle cx=\"40\" cy=\"10\" r=\"4\" fill=\"#f4efe6\"/></svg>","solverRole":"player","constraints":[{"type":"with_gender","gender":"M"},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"F","name":"Francesca","gender":"F","role":"player","color":"#00838f","avatar":{"bg":"#6e2c4b","skin":"#f6d8c0","hair":"#b7482c","style":"ponytail","shirt":"#3f6a8a","necklace":true},"clue":"彼女のエリアには<b>大会関係者</b>がいた。彼女は<b>誰もいないエリアのすぐ隣</b>にいた。","job":"挑戦者","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Francesca\"><rect width=\"80\" height=\"80\" fill=\"#6e2c4b\"/><path d=\"M50 30 Q64 34 60 62 L54 62 Q56 40 48 36 Z\" fill=\"#b7482c\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#3f6a8a\"/><path d=\"M31 58 Q40 66 49 58\" fill=\"none\" stroke=\"#f3e2b3\" stroke-width=\"2\" stroke-dasharray=\"2 2\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f6d8c0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f6d8c0\"/><path d=\"M26 33 Q26 16 40 16 Q54 16 54 33 Q50 24 40 24 Q30 24 26 33 Z\" fill=\"#b7482c\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/></svg>","solverRole":"player","constraints":[{"type":"with_role","role":"official"},{"type":"adjacent_area_empty"},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"G","name":"Gerald","gender":"M","role":"player","color":"#ad1457","avatar":{"bg":"#35607a","skin":"#e4b998","hair":"#c9c3b8","style":"slick","shirt":"#8b5a2b","glasses":true,"beard":true},"clue":"彼は<b>Bernadetteより南</b>にいた。彼は<b>椅子</b>の隣には<b>いなかった</b>。","job":"クラブ最年長の会員","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Gerald\"><rect width=\"80\" height=\"80\" fill=\"#35607a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#8b5a2b\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e4b998\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e4b998\"/><path d=\"M26 30 Q27 16 44 15 Q56 15 55 26 Q48 22 40 23 Q30 24 26 30 Z\" fill=\"#c9c3b8\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"34\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><circle cx=\"46\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><line x1=\"39\" y1=\"35\" x2=\"41\" y2=\"35\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><path d=\"M27 38 Q30 52 40 53 Q50 52 53 38 Q50 47 40 48 Q30 47 27 38 Z\" fill=\"#c9c3b8\"/></svg>","solverRole":"player","constraints":[{"type":"rel","q":"B","dir":"S"},{"type":"not_beside","obj":"chair"},{"type":"beside","obj":"chessboard","rule":true}]},{"id":"H","name":"Hermione","gender":"F","role":"official","color":"#5d4037","avatar":{"bg":"#8c3a5a","skin":"#f1c8a5","hair":"#5a3a22","style":"long","shirt":"#2f3b4c","scarf":"#f2d24a"},"clue":"彼女は自分のエリアで<b>一人ではなかった</b>。","job":"主任審判","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Hermione\"><rect width=\"80\" height=\"80\" fill=\"#8c3a5a\"/><path d=\"M22 42 Q20 14 40 14 Q60 14 58 42 L62 72 L18 72 Z\" fill=\"#5a3a22\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#2f3b4c\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f1c8a5\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f1c8a5\"/><path d=\"M26 36 Q26 16 40 16 Q54 16 54 36 Q52 24 40 24 Q28 24 26 36 Z\" fill=\"#5a3a22\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><path d=\"M30 58 Q40 70 50 58 L48 66 Q40 76 32 66 Z\" fill=\"#f2d24a\"/></svg>","solverRole":"official","constraints":[{"type":"not_alone"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"I","name":"Irving","gender":"M","role":"official","color":"#827717","avatar":{"bg":"#4e6f8a","skin":"#e9c6a4","hair":"#1c1a1a","style":"short","shirt":"#1b1b1b","bow":true},"clue":"彼のエリアのどこかに<b>本棚</b>があった。彼と<b>Kevin</b>は<b>同じ対角線</b>上にいた。","job":"大会ディレクター","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Irving\"><rect width=\"80\" height=\"80\" fill=\"#4e6f8a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#1b1b1b\"/><path d=\"M40 60 l-8 -4 v8 z M40 60 l8 -4 v8 z\" fill=\"#b8302b\"/><circle cx=\"40\" cy=\"60\" r=\"2\" fill=\"#7a1f1c\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e9c6a4\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e9c6a4\"/><path d=\"M26 32 Q26 15 40 15 Q54 15 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#1c1a1a\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/></svg>","solverRole":"official","constraints":[{"type":"area_has","obj":"bookcase"},{"type":"same_diagonal","q":"K"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"J","name":"Joanna","gender":"F","role":"staff","color":"#283593","avatar":{"bg":"#5a2a2a","skin":"#f0cdb0","hair":"#d9b464","style":"ponytail","shirt":"#f4efe6","apron":true},"clue":"彼女は<b>カフェ</b>にいた。","job":"バリスタ","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Joanna\"><rect width=\"80\" height=\"80\" fill=\"#5a2a2a\"/><path d=\"M50 30 Q64 34 60 62 L54 62 Q56 40 48 36 Z\" fill=\"#d9b464\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#f4efe6\"/><path d=\"M28 80 L30 62 Q40 58 50 62 L52 80 Z\" fill=\"#f4efe6\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f0cdb0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f0cdb0\"/><path d=\"M26 33 Q26 16 40 16 Q54 16 54 33 Q50 24 40 24 Q30 24 26 33 Z\" fill=\"#d9b464\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/></svg>","solverRole":"staff","constraints":[{"type":"area","areas":["Cafe"]},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"K","name":"Kevin","gender":"M","role":"staff","color":"#33691e","avatar":{"bg":"#2f3b4c","skin":"#e7b98f","hair":"#2b1c14","style":"short","shirt":"#f4efe6","apron":true,"mustache":true},"clue":"彼は<b>椅子</b>に座っていた。","job":"ウェイター","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Kevin\"><rect width=\"80\" height=\"80\" fill=\"#2f3b4c\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#f4efe6\"/><path d=\"M28 80 L30 62 Q40 58 50 62 L52 80 Z\" fill=\"#f4efe6\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e7b98f\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e7b98f\"/><path d=\"M26 32 Q26 15 40 15 Q54 15 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#2b1c14\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><path d=\"M33 41 Q40 37 47 41 Q40 43 33 41 Z\" fill=\"#3a2a1c\"/></svg>","solverRole":"staff","constraints":[{"type":"on","obj":"chair"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"L","name":"Lena","gender":"F","role":"spectator","color":"#37474f","avatar":{"bg":"#6e2c4b","skin":"#f6d8c0","hair":"#b7482c","style":"bun","shirt":"#7a5a9a","earrings":true},"clue":"彼女は<b>自分のエリアの角</b>にいた。彼女の<b>行</b>のどこかに<b>椅子</b>があった。","job":"Adrianの母","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Lena\"><rect width=\"80\" height=\"80\" fill=\"#6e2c4b\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#7a5a9a\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f6d8c0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f6d8c0\"/><circle cx=\"40\" cy=\"15\" r=\"7\" fill=\"#b7482c\"/><path d=\"M26 32 Q26 16 40 16 Q54 16 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#b7482c\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"26\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/><circle cx=\"54\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/></svg>","solverRole":"spectator","constraints":[{"type":"corner_of_area"},{"type":"row_has","obj":"chair"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"M","name":"Miriam","gender":"F","role":"spectator","color":"#bf360c","avatar":{"bg":"#1b2a33","skin":"#e4b998","hair":"#1c1a1a","style":"bob","shirt":"#3f8a4a","glasses":true},"clue":"彼女は<b>噴水</b>の隣にいた。","job":"チェスのコラムニスト","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Miriam\"><rect width=\"80\" height=\"80\" fill=\"#1b2a33\"/><path d=\"M22 40 Q22 14 40 14 Q58 14 58 40 L58 58 L22 58 Z\" fill=\"#1c1a1a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#3f8a4a\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e4b998\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e4b998\"/><path d=\"M26 36 Q26 16 40 16 Q54 16 54 36 Q52 24 40 24 Q28 24 26 36 Z\" fill=\"#1c1a1a\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"34\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><circle cx=\"46\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><line x1=\"39\" y1=\"35\" x2=\"41\" y2=\"35\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/></svg>","solverRole":"spectator","constraints":[{"type":"beside","obj":"fountain"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"N","name":"Nicholas","gender":"M","role":"spectator","color":"#4e342e","avatar":{"bg":"#7a6a3c","skin":"#f1c8a5","hair":"#c9c3b8","style":"bald","shirt":"#8a949c","glasses":true},"clue":"彼の<b>列</b>のどこかに<b>絵画</b>があった。","job":"クラブの会計係","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Nicholas\"><rect width=\"80\" height=\"80\" fill=\"#7a6a3c\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#8a949c\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f1c8a5\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f1c8a5\"/><path d=\"M26 30 Q26 22 30 20 L30 34 Q26 34 26 30 Z\" fill=\"#c9c3b8\"/><path d=\"M54 30 Q54 22 50 20 L50 34 Q54 34 54 30 Z\" fill=\"#c9c3b8\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><circle cx=\"34\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><circle cx=\"46\" cy=\"35\" r=\"5\" fill=\"none\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/><line x1=\"39\" y1=\"35\" x2=\"41\" y2=\"35\" stroke=\"#2b2b2b\" stroke-width=\"1.4\"/></svg>","solverRole":"spectator","constraints":[{"type":"col_has","obj":"painting"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"O","name":"Ophelia","gender":"F","role":"spectator","color":"#00695c","avatar":{"bg":"#3d5a6e","skin":"#f6d8c0","hair":"#5a3a22","style":"long","shirt":"#e8c0d0","headband":"#f0b429"},"clue":"彼女は<b>座席に座っていた</b>（<b>安楽椅子</b>、<b>ベンチ</b>、<b>椅子</b>、<b>ソファ</b>、または<b>スツール</b>）。彼女の<b>ちょうど1行北</b>に<b>女性</b>がいた。","job":"チェスの生徒","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Ophelia\"><rect width=\"80\" height=\"80\" fill=\"#3d5a6e\"/><path d=\"M22 42 Q20 14 40 14 Q60 14 58 42 L62 72 L18 72 Z\" fill=\"#5a3a22\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#e8c0d0\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f6d8c0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f6d8c0\"/><path d=\"M26 36 Q26 16 40 16 Q54 16 54 36 Q52 24 40 24 Q28 24 26 36 Z\" fill=\"#5a3a22\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><rect x=\"26\" y=\"23\" width=\"28\" height=\"5\" rx=\"2\" fill=\"#f0b429\"/></svg>","solverRole":"spectator","constraints":[{"type":"on_any","objs":["armchair","bench","chair","sofa","stool"]},{"type":"rel_any","dir":"N","exact":1,"gender":"F"},{"type":"not_beside","obj":"chessboard","rule":true}]},{"id":"V","name":"Vladimir","gender":"M","role":"victim","color":"#1b1b1b","avatar":{"bg":"#5a2a2a","skin":"#e9c6a4","hair":"#5a3a22","style":"slick","shirt":"#1b1b1b","beard":true},"clue":"<b>被害者。</b>彼は<b>図書室</b>で、<b>チェス盤</b>のそばで発見された――犯人と二人きりで。","job":"現チャンピオン","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Vladimir\"><rect width=\"80\" height=\"80\" fill=\"#5a2a2a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#1b1b1b\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#e9c6a4\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e9c6a4\"/><path d=\"M26 30 Q27 16 44 15 Q56 15 55 26 Q48 22 40 23 Q30 24 26 30 Z\" fill=\"#5a3a22\"/><circle cx=\"34\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><circle cx=\"46\" cy=\"35\" r=\"1.6\" fill=\"#2b2b2b\"/><path d=\"M36 43 Q40 46 44 43\" fill=\"none\" stroke=\"#a5735a\" stroke-width=\"1.4\"/><path d=\"M27 38 Q30 52 40 53 Q50 52 53 38 Q50 47 40 48 Q30 47 27 38 Z\" fill=\"#5a3a22\"/><path d=\"M12 12 L68 68 M68 12 L12 68\" stroke=\"#e0362e\" stroke-width=\"5\" stroke-linecap=\"round\" opacity=\".9\"/></svg>","solverRole":"player","constraints":[{"type":"area","areas":["Library"]},{"type":"beside","obj":"chessboard"}]}],"victim":"V","murderer":"D","solution":{"J":[1,10],"B":[2,7],"G":[3,6],"F":[4,3],"A":[5,4],"I":[6,12],"K":[7,13],"L":[8,15],"H":[9,5],"C":[10,9],"E":[11,8],"N":[12,16],"V":[13,1],"D":[14,2],"O":[15,14],"M":[16,11]},"walkthrough":[{"place":[],"cand":{"A":[[4,3],[5,4],[5,7],[5,9],[6,3],[6,8],[7,4],[8,3],[8,5]],"B":[[2,7],[3,6],[3,8],[4,3],[4,7],[5,4],[5,7],[5,9],[5,14],[6,3],[6,8],[6,13],[6,15],[7,4],[7,14],[8,3],[8,5],[12,2],[13,1],[13,3]],"C":[[3,6],[3,8],[5,4],[5,7],[5,9],[5,14],[6,3],[6,8],[6,13],[6,15],[8,3],[8,5],[10,4],[10,7],[10,9],[13,1],[13,3]],"D":[[4,3],[5,4],[5,7],[5,9],[5,14],[6,3],[6,8],[6,13],[6,15],[7,4],[7,14],[8,3],[8,5],[9,3],[10,4],[10,7],[10,9],[11,8],[12,2],[13,1],[13,3],[14,2]],"E":[[2,7],[3,6],[3,8],[4,3],[4,7],[5,4],[5,7],[5,9],[5,14],[6,3],[6,8],[6,13],[6,15],[7,4],[7,14],[8,3],[8,5],[9,3],[10,4],[10,7],[10,9],[11,8],[12,2],[13,1],[13,3],[14,2]],"F":[[4,3],[8,3],[11,8]],"G":[[3,6],[3,8],[4,3],[4,7],[5,4],[5,9],[5,14],[6,3],[6,15],[7,4],[8,3],[8,5],[9,3],[10,4],[10,7],[10,9],[11,8],[12,2],[13,1],[13,3],[14,2]],"I":[[4,14],[5,12],[5,13],[5,15],[6,12],[6,16],[7,15],[7,16],[8,14]],"J":[[1,9],[1,10],[1,11],[1,12],[2,5],[2,6],[2,8],[2,9],[2,11],[2,12],[2,13],[3,5],[3,9],[3,10],[3,11],[3,13],[3,14],[4,8],[4,9],[4,10]],"K":[[2,9],[2,11],[3,11],[3,13],[5,12],[6,7],[7,13],[8,8],[8,10]],"L":[[2,5],[2,14],[3,3],[3,4],[3,5],[3,14],[3,15],[3,16],[5,1],[6,11],[7,9],[7,11],[7,16],[8,1],[8,9],[8,11],[8,14],[8,15],[8,16]],"M":[[15,10],[16,9],[16,11]],"N":[[3,16],[4,1],[5,1],[5,16],[6,1],[6,16],[7,1],[7,16],[8,1],[8,16],[10,1],[10,16],[12,1],[12,16],[14,1],[15,1],[15,16]],"O":[[2,9],[2,11],[3,11],[3,13],[5,12],[6,7],[7,13],[8,8],[8,10],[9,4],[11,7],[12,13],[12,14],[15,3],[15,14],[16,6]],"V":[[12,2],[13,1],[13,3],[14,2]]},"text":"八つの盤で四つの対局。Vladimirは図書室の盤R13C2のそばで見つかったので、その盤に隣接する四マス――R12C2、R14C2、R13C1、R13C3――のどれかにいて、対戦相手である犯人は盤を挟んだもう一方の軸にいる：一人は13行に、もう一人は2列にいて、図書室には他に誰もいない。盤のそばに座るのは選手だけなので、犯人は七人の選手のうちの一人であり、13行と2列は他の全員に対して閉じている：オフィスの椅子R13C8とマスR5C2、R10C2は除外され、ブリッツの盤R10C3にはR10C4とR9C3からしか近づけない。Francescaは盤のそばに座っていて、彼女の部屋には大会関係者がいて、誰もいないエリアのすぐ隣にいた：盤の隣の28マスのうち、空でありうる部屋に接しているのはR4C3（クロークとホワイエの隣）、R8C3（ブリッツ室の隣）、R11C8（オフィスの隣）だけだ――大会ホールにはAdrianが、カフェにはJoannaがいて、図書室は埋まっており、盤の隣の残りのマスは他の部屋にまったく接していない。Irvingの部屋には本棚がある：図書室は彼には禁じられているので、彼は分析室にいて、その盤の隣には決していない。KevinはIrvingの対角線上の椅子に座っている――椅子は九脚残る（R13C8は13行にある）。Miriamは噴水の隣にいる：R15C10、R16C9、またはR16C11。Nicholasは二枚の絵画のどちらかの列にいる：1列か16列。Joannaはカフェにいる。Lenaには椅子のある行に部屋の角が必要だ――2、3、5、6、7、または8行。"},{"place":[],"cand":{"A":[[5,4],[5,7],[5,9],[6,8],[7,4],[8,5]],"B":[[2,7],[3,6],[3,8],[4,7],[5,4],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,4],[7,14],[8,5],[13,1]],"C":[[3,6],[3,8],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[8,5],[10,7],[10,9],[13,1]],"D":[[5,14],[6,13],[6,15],[7,14],[10,7],[10,9],[11,8],[13,1],[14,2]],"E":[[2,7],[3,6],[3,8],[4,7],[5,4],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,4],[7,14],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"F":[[4,3],[8,3]],"G":[[3,6],[3,8],[4,7],[5,4],[5,9],[5,14],[6,15],[7,4],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"H":[[4,4],[4,5],[5,5],[5,6],[5,10],[6,4],[6,5],[6,6],[6,7],[6,9],[6,10],[6,11],[7,5],[7,6],[7,7],[7,8],[8,6],[8,7],[8,8],[9,5],[9,6],[9,7],[9,8],[9,9],[9,10]],"I":[[4,14],[5,12],[5,13],[5,15],[6,12],[7,15],[8,14]],"J":[[1,9],[1,10],[1,11],[1,12]],"K":[[2,9],[3,11],[3,13],[7,13],[8,10]],"L":[[2,5],[2,14],[3,4],[3,5],[3,14],[3,15],[6,11],[7,9],[7,11],[8,9],[8,11],[8,14],[8,15]],"M":[[15,10],[16,9],[16,11]],"N":[[3,16],[5,16],[6,16],[7,16],[8,16],[10,16],[12,16],[15,16]],"O":[[2,9],[2,11],[3,11],[3,13],[5,12],[6,7],[7,13],[8,8],[8,10],[9,4],[11,7],[12,13],[12,14],[15,14],[16,6]],"V":[[13,1],[14,2]]},"text":"<b>FrancescaはR11C8にいられるか？</b>そうするとブリッツの盤R10C8で対局が行われ、彼女の相手はR10C7かR10C9に座り、10行と8列は彼らのものになる。彼女の大会関係者はHermioneだ（Irvingは分析室にいる）。Hermioneは盤から離れたブリッツ室にいなければならず、10行、11行（Francescaの行）、2列の外になる：残るのはベンチR9C4だけ――4列にある。しかし大会ホールの盤は4列を必要とする：R5C4はR5C3の行側の唯一のマスで（R5C2は2列にある）、R7C4はR8C4の列側の唯一のマスで、R5C8は列側の唯一のマスR6C8をいま8列に奪われた。大会ホールのどの盤でも対局は行えない――ところがAdrianは大会ホールの盤のそばにいる。したがって<b>FrancescaはR4C3かR8C3にいて</b>、大会ホールの3列にあり、Hermioneも大会ホールで彼女と一緒にいる。3列はFrancescaのものだ：ブリッツの盤R10C3はR9C3を失い、空になる。13行には使えるマスがR13C1一つだけ残る（R13C3は3列にある）ので、Vladimirか彼の相手がR13C1に、もう一人が14行の唯一の使えるマスR14C2にいる（その行のオフィス、ラウンジ、中庭のマスは誰にも合わない）。1列は彼らのものなので、Nicholasは16列にいる――そして16列のすべてのマスは彼のために取ってある。1行にはJoannaしか入れない：R1C9–R1C12。Kevinの椅子には、その対角線上に盤の隣ではない分析室のマスが必要だ：R2C9（IrvingはR5C12）、R3C11（R5C13かR7C15）、R3C13（R4C14かR5C15）、R7C13（R6C12、R5C15、またはR8C14）、あるいはR8C10（R6C12、R5C13、またはR4C14）。R2C11、R5C12、R6C7、R8C8にはそれがない。"},{"place":[],"cand":{"A":[[5,4],[7,4]],"B":[[2,7],[3,6],[3,8],[4,7],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,14],[8,5],[13,1]],"C":[[3,6],[3,8],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[8,5],[10,7],[10,9],[13,1]],"D":[[5,14],[6,13],[6,15],[7,14],[10,7],[10,9],[11,8],[13,1],[14,2]],"E":[[2,7],[3,6],[3,8],[4,7],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,14],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"F":[[4,3],[8,3]],"G":[[3,6],[3,8],[4,7],[5,9],[5,14],[6,15],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"H":[[9,5],[9,6],[9,7],[9,9],[9,10]],"I":[[4,14],[5,12],[5,13],[5,15],[6,12],[7,15],[8,14]],"J":[[1,9],[1,10],[1,11],[1,12]],"K":[[2,9],[3,11],[3,13],[7,13],[8,10]],"L":[[2,5],[2,14],[3,5],[3,14],[3,15],[6,11],[7,9],[7,11],[8,9],[8,11],[8,14],[8,15]],"M":[[15,10],[16,9],[16,11]],"N":[[3,16],[5,16],[6,16],[7,16],[8,16],[10,16],[12,16],[15,16]],"O":[[2,9],[2,11],[3,11],[3,13],[5,12],[6,7],[7,13],[8,8],[8,10],[11,7],[12,13],[12,14],[15,14],[16,6]],"V":[[13,1],[14,2]]},"text":"Adrianは大会ホールの盤の隣にいて、2列と3列の外だ：R5C4、R5C7、R5C9、R6C8、R7C4、またはR8C5。<b>盤R5C8ではない</b>（R5C7、R5C9、またはR6C8）：その対局は8列を取ることになり、ブリッツの盤R10C8の列側の唯一のマスR11C8が失われる――R10C8は除外される。すると10行にはR10C16のNicholasだけが入れ（R10C1は1列にあり、その行の他のマスは誰にも合わない）、11行にはスツールR11C7のOpheliaだけが入れる――だがOpheliaにはちょうど1行北に女性が必要で、Nicholasは男性だ。<b>R8C5でもない：</b>彼の相手はR8C4の列側の唯一のマスR7C4に座り、4列を取ることになる。FrancescaはR8C3にはいられず（8行はAdrianのものになる）、R4C3の盤R5C3にいることになるが、その盤の行側の唯一のマスR5C4は4列にある――誰も彼女の向かいに座れない。したがって<b>AdrianはR5C4かR7C4にいて</b>、4列は彼のものであり、AdrianとFrancescaは対戦相手だ：R5C3（Adrian R5C4、Francesca R4C3）か、R8C4（Adrian R7C4、Francesca R8C3）のどちらかで、二つの盤のもう一方も4列を必要とするからだ。9行を埋められるのはHermioneだけだ――彼女のブリッツ室のマスは2、3、4列にあり、大会ホールとトロフィー室のマスは他の誰にも合わない――ので、<b>Hermioneは9行にいる</b>、R9C5–R9C10。ただしR9C8ではない：8列はまた盤R10C8を潰し、Opheliaをスツールの上に、その上に女性がいない状態で残してしまう。"},{"place":[],"cand":{"A":[[5,4],[7,4]],"B":[[2,7],[3,6],[3,8],[4,7],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,14],[8,5],[13,1]],"C":[[3,6],[3,8],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[8,5],[10,7],[10,9],[13,1]],"D":[[5,14],[6,13],[6,15],[7,14],[10,7],[10,9],[11,8],[13,1],[14,2]],"E":[[2,7],[3,6],[3,8],[4,7],[5,7],[5,9],[5,14],[6,8],[6,13],[6,15],[7,14],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"F":[[4,3],[8,3]],"G":[[3,6],[3,8],[4,7],[5,9],[5,14],[6,15],[8,5],[10,7],[10,9],[11,8],[13,1],[14,2]],"H":[[9,5],[9,6],[9,7],[9,9],[9,10]],"I":[[4,14],[5,12],[5,13],[5,15],[6,12],[7,15],[8,14]],"J":[[1,9],[1,10],[1,11],[1,12]],"K":[[7,13]],"L":[[2,5],[2,14],[3,5],[3,14],[3,15],[6,11],[7,9],[7,11],[8,9],[8,11],[8,14],[8,15]],"M":[[15,10],[16,9],[16,11]],"N":[[3,16],[5,16],[6,16],[7,16],[8,16],[10,16],[12,16],[15,16]],"O":[[2,9],[2,11],[3,11],[3,13],[5,12],[6,7],[7,13],[8,8],[8,10],[11,7],[12,13],[12,14],[15,14],[16,6]],"V":[[13,1],[14,2]]},"text":"<b>Kevinの椅子。</b><b>R2C9？</b>IrvingはR5C12で5行を取るので、AdrianはR7C4に、FrancescaはR8C3にいる。R5C3とR5C8は除外され（4列、5行）、分析室の盤も除外される（その列側のマスR5C14とR7C14は5行と7行にある）ので、カフェとブリッツの両方の対局が行われ、カフェの盤の行側の選手が3行を取る。Lenaには椅子のある行に角が必要だ：2行（Kevin）、3、5、7、8行は埋まり、6行には角のマスがない――不可能。<b>R3C11？</b>IrvingはR5C13かR7C15にいるので、IrvingとAdrianで5行と7行を分け合う。R5C8（5行）、分析室の盤（5行と7行）、カフェの盤（3行はKevinのもの）は除外され、三つの対局のためにR5C3、R8C4、R10C8が残るが――R5C3とR8C4はどちらも4列を必要とする（R5C4、R7C4）。<b>R3C13？</b>3行はカフェの盤を潰し、Irvingは――R4C14（14列）かR5C15（15列、13列はKevinのもの）で――分析室の盤を潰す。AdrianとFrancescaはR5C3/R8C4の一方を使い、R5C8とR10C8は8列（R6C8、R11C8）を分け合うので、可能な対局は三つだけだ。<b>R8C10？</b>8行はFrancescaをR4C3に、AdrianをR5C4に置く（4–5行、3–4列）。IrvingはR6C12にいて（R5C13とR4C14は5行と4行にある）、分析室の盤の行側を潰す。R5C8、R8C4、R10C3は除外され、カフェとブリッツの対局が行われ、カフェの列側の選手はR2C7にいる（R4C7は4行にある）。Lenaの2、3、5、6、8行は尽きた。7行での彼女の唯一の角はR7C11、11列なので、MiriamはR16C9にいて（R15C10はKevinの列にある）、9列――すると、ブリッツの行側の選手はR10C7、7列にいなければならず、R2C7のカフェの選手と同じ列になる。矛盾。<b>KevinはR7C13にいる。</b>"},{"place":["K","A","F","I","L","M","J","H"],"cand":{"B":[[2,7],[3,6],[13,1]],"C":[[3,6],[10,9],[13,1]],"D":[[10,9],[11,8],[13,1],[14,2]],"E":[[2,7],[3,6],[10,9],[11,8],[13,1],[14,2]],"G":[[3,6],[10,9],[11,8],[13,1],[14,2]],"N":[[12,16],[15,16]],"O":[[12,14],[15,14]],"V":[[13,1],[14,2]]},"text":"Kevinが7行を取るので、<b>AdrianはR5C4に、FrancescaはR4C3にいて</b>、彼らの対局はR5C3だ：4–5行と3–4列は彼らのもので、R8C4とR5C8は除外される。Kevinの対角線上のIrvingはR6C12、R8C14、またはR5C15にいる。R5C15は5行にあり、分析室の盤はどのみち除外される――その列側のマスR5C14とR7C14は、AdrianとKevinの行にある。したがって四つの対局は次のとおり：図書室、R5C3、カフェの盤R3C7、ブリッツの盤R10C8。カフェの列側の選手はR2C7に座り（R4C7は4行にある）、ブリッツの列側の選手はR11C8に座る――R3C8は除外され、カフェの行側の選手はR3C6にいる――そしてブリッツの行側の選手はR10C9にいる（R10C7はR2C7の列にある）。12、15、16行を使えるのはMiriam、Nicholas、Opheliaだけなので、それらは彼らのものだ：6行はIrvingのものなので、<b>IrvingはR6C12にいる</b>。15列で使える唯一のマスはLenaの角R8C15だ：<b>LenaはR8C15にいる</b>。16行はMiriamのもので<b>R16C11</b>だ（R16C9は9列にあり、ベンチR16C6ではOpheliaに15行の女性が必要になる）ので、<b>JoannaはR1C10にいて</b>（9、11、12列は埋まっている）、<b>HermioneはR9C5にいる</b>（6–10列は尽き、R9C8は否定された）。NicholasはR12C16かR15C16に、OpheliaはソファR12C14かベンチR15C14にいる。"},{"place":["O","N","D","V","C"],"cand":{"B":[[2,7],[3,6]],"E":[[2,7],[3,6],[11,8]],"G":[[3,6],[11,8]]},"text":"残っているのは：Bernadette（R2C7、R3C6、またはR13C1）、Casimir（R3C6、R10C9、R13C1）、Denise（R10C9、R11C8、R13C1、R14C2）、EmmettとGerald、Nicholas、Ophelia、Vladimir（R13C1かR14C2）。<b>DeniseはR11C8にいられるか？</b>彼女は男性と二人きりだ：R10C9の相手は男性で、ブリッツ室には他に誰もいない――Casimirではなく（彼の相手は男性でなければならない）、Emmettでもなく（彼の部屋に男性が必要だ）、したがってGeraldだ。GeraldはBernadetteより南にいるので、Bernadetteはカフェにいて、図書室のもう一人の選手はCasimirかEmmettだ。Opheliaには1行北に女性が必要だ：ベンチR15C14ではなく（14行にはVladimirか男性がいることになる）、ソファR12C14で、NicholasはR15C16だ。CasimirはBernadetteと対局できないので図書室にいて、Emmettはカフェにいる――そこで彼と一緒にいるのはBernadetteとJoannaだけだ：男性はいない。矛盾。<b>DeniseはR11C8にいない</b>。R11C8はEmmettかGeraldのもので、どちらも男性だ。ソファのOpheliaには11行に女性が必要で、その行の使える唯一のマスはR11C8だ――したがって<b>OpheliaはベンチR15C14にいて</b>、<b>NicholasはR12C16にいる</b>。Opheliaの1行北の女性は、14行の使える唯一のマスR14C2にいる：Bernadetteではなく（GeraldがBernadetteより南にいられなくなる）、したがって<b>DeniseはR14C2に</b>、<b>VladimirはR13C1に</b>いて、図書室の盤で彼と二人きりのDeniseが彼の対戦相手だ。Bernadetteはカフェの盤にいる（R13C1は埋まっている）ので、Casimirは彼女の向かいに座れない：<b>CasimirはR10C9にいる</b>。"},{"place":["B","G","E"],"cand":{},"text":"BernadetteはR2C7かR3C6に座り、彼女の相手――EmmettかGerald――はもう一方のマスにいる。EmmettとGeraldは、Casimirの相手であるR11C8も分け合う。<b>BernadetteはR3C6にいられるか？</b>すると彼女の相手は彼女の北のR2C7にいる――Bernadetteより南にいるGeraldではなく――ので、自分の部屋に男性が必要なEmmettになる：カフェにはBernadette、Joanna、そして彼自身がいることになる。矛盾。<b>BernadetteはR2C7にいる</b>。Emmettも彼女の向かいには座れない（彼と一緒にいる男性がいなくなる）ので、<b>GeraldはR3C6にいて</b>――Bernadetteより南で、椅子の隣ではない――<b>EmmettはR11C8にいて</b>、彼と一緒にいる男性であるCasimirの向かいにいる。全員が配置された。"},{"final":true,"text":"事件解決：図書室の第一盤で、Vladimirは通信チェスの王者Deniseと対局していた――時計が止められたとき、彼と二人きりだった人物だ。<b>Deniseが犯人だ！</b>"}],"solver":{"rules":[{"type":"obj_pairs","obj":"chessboard","pairs":4}],"occupiable":["chair","stool","bench","armchair","sofa"]},"verification":{"tool":"tools/murdoku_solver.py","unique":true,"guessFree":true,"checked":"2026-09-24"}}