{"format":"murdoku-puzzle/1","id":"xmaseve","version":1,"difficulty":"easy","level":3,"size":{"rows":6,"cols":6},"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":"クリスマスイブ","tagline":"ジャイアント山地の雪に閉ざされた山荘 · クリスマスイブ · プレゼントはまだ開けられていなかった","author":"mathace","concept":"Murdoku – Manuel Garand (murdoku.com); unofficial fan-made case","created":"2026-09-29","story":"ジャイアント山地の高地にある木造の山荘、クリスマスイブ。雪は正午から降り続いていた。子どもたちは、リビングのクリスマスツリーの隣にいるように言われていた――プレゼントをのぞき見してはいけない！――一方、大人たちはキッチン、玄関、薪小屋を行ったり来たりしていた。山荘の持ち主で、ちょうど誰が相続するかを発表したばかりのVaclavおじいさんは、子どもたちと作り始めた雪だるまを仕上げに外へ出た。彼は二度と戻らなかった。雪の庭で、雪だるまの隣で見つかったのだ。山荘の全員が短い証言をした――彼と二人きりでいた人物を見つけよう。","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>同じエリアの中</b>。物のあるマス（モミの木、雪だるま、暖炉、オーブン、クリスマスツリー、テーブル、ブーツ、薪の山）にはいられない。ただしそり、椅子、安楽椅子、玄関マットは例外だ。","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>どの子どもも、クリスマスツリーの隣にいた。</b>"]},"roleNames":{"child":"子ども","adult":"大人","victim":"被害者"},"personGroups":[{"id":"children","name":"子どもたち","persons":["A","B"]},{"id":"adults","name":"大人たち","persons":["C","D","E","V"]}],"map":{"groups":[],"gaps":[],"areas":[{"id":"Snowy Garden","cells":[[1,1],[1,2],[1,3],[1,4],[1,5],[1,6],[2,1],[2,6],[3,1],[4,1],[4,2],[5,2],[5,3],[6,3],[6,4],[6,5],[6,6]],"fill":"#f1f5f9","pattern":"snow","labelAt":[4,2],"name":"雪の庭"},{"id":"Living 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height=\"3\" rx=\"1\" fill=\"#6b5a45\"/>"},"snowman":{"occupiable":false,"name":"雪だるま","icon":"<circle cx=\"23\" cy=\"32\" r=\"11\" fill=\"#fbfbfb\" stroke=\"#b9c3cc\" stroke-width=\"1.2\"/><circle cx=\"23\" cy=\"16\" r=\"8\" fill=\"#fbfbfb\" stroke=\"#b9c3cc\" stroke-width=\"1.2\"/><rect x=\"16\" y=\"5\" width=\"14\" height=\"3\" fill=\"#2b2b2b\"/><rect x=\"18.5\" y=\"0.5\" width=\"9\" height=\"5\" fill=\"#2b2b2b\"/><circle cx=\"20\" cy=\"14\" r=\"1.2\" fill=\"#2b2b2b\"/><circle cx=\"26\" cy=\"14\" r=\"1.2\" fill=\"#2b2b2b\"/><path d=\"M23 16 l7 2 l-7 2 z\" fill=\"#e67e22\"/><path d=\"M15 22 q8 4 16 0 l1 3 q-9 4 -18 0 z\" fill=\"#c0392b\"/><circle cx=\"23\" cy=\"29\" r=\"1.3\" fill=\"#2b2b2b\"/><circle cx=\"23\" cy=\"34\" r=\"1.3\" fill=\"#2b2b2b\"/>"},"table":{"occupiable":false,"name":"テーブル","icon":"<rect x=\"7\" y=\"7\" width=\"32\" height=\"32\" rx=\"5\" fill=\"#b98a5a\" stroke=\"#6e4d2c\" stroke-width=\"1.5\"/><rect x=\"12\" y=\"12\" width=\"22\" height=\"22\" rx=\"3\" fill=\"#d1a675\"/>"},"xmastree":{"occupiable":false,"name":"クリスマスツリー","icon":"<rect x=\"20\" y=\"36\" width=\"6\" height=\"6\" fill=\"#6b4a2b\"/><path d=\"M23 4 L33 17 L28 17 L37 29 L31 29 L40 38 L6 38 L15 29 L9 29 L18 17 L13 17 Z\" fill=\"#2f7a3a\"/><path d=\"M23 0.5 l1.8 3.6 l4 .5 l-2.9 2.8 l.7 4 l-3.6 -1.9 l-3.6 1.9 l.7 -4 l-2.9 -2.8 l4 -.5 z\" fill=\"#f1c40f\"/><circle cx=\"20\" cy=\"18\" r=\"2\" fill=\"#e74c3c\"/><circle cx=\"28\" cy=\"24\" r=\"2\" fill=\"#3498db\"/><circle cx=\"16\" cy=\"30\" r=\"2\" fill=\"#f1c40f\"/><circle cx=\"31\" cy=\"34\" r=\"2\" fill=\"#e74c3c\"/><circle cx=\"23\" cy=\"30\" r=\"2\" fill=\"#ecf0f1\"/>"}},"wallTypes":{},"objects":[{"cell":[1,1],"type":"fir"},{"cell":[1,4],"type":"snowman"},{"cell":[1,6],"type":"fir"},{"cell":[2,2],"type":"fireplace"},{"cell":[2,5],"type":"oven"},{"cell":[3,1],"type":"sled"},{"cell":[3,3],"type":"xmastree"},{"cell":[3,6],"type":"chair"},{"cell":[4,4],"type":"armchair"},{"cell":[4,6],"type":"table"},{"cell":[5,3],"type":"sled"},{"cell":[5,4],"type":"boots"},{"cell":[5,5],"type":"doormat"},{"cell":[5,6],"type":"chair"},{"cell":[6,1],"type":"firewood"},{"cell":[6,6],"type":"fir"}],"wallFeatures":[],"extras":[],"cellSize":46},"persons":[{"id":"A","name":"Avril","gender":"F","role":"child","color":"#c62828","avatar":{"bg":"#c62828","skin":"#f6d8c0","hair":"#d9b464","style":"ponytail","shirt":"#2e7d32","headband":"#c62828"},"clue":"彼女は<b>暖炉</b>の隣には<b>いなかった</b>。","job":"孫娘、9歳","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Avril\"><rect width=\"80\" height=\"80\" fill=\"#c62828\"/><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=\"#2e7d32\"/><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=\"#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\"/><rect x=\"26\" y=\"23\" width=\"28\" height=\"5\" rx=\"2\" fill=\"#c62828\"/></svg>","solverRole":"child","constraints":[{"type":"not_beside","obj":"fireplace"},{"type":"beside","obj":"xmastree","rule":true}]},{"id":"B","name":"Byron","gender":"M","role":"child","color":"#2e7d32","avatar":{"bg":"#2e7d32","skin":"#f1c8a5","hair":"#7a4a2a","style":"short","shirt":"#c62828","cap":true},"clue":"彼は<b>自分のエリアで最も東にいる人物</b>だった。","job":"孫息子、7歳","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Byron\"><rect width=\"80\" height=\"80\" fill=\"#2e7d32\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#c62828\"/><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=\"#7a4a2a\"/><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 24 Q24 11 40 11 Q56 11 56 24 Z\" fill=\"#22406f\"/><rect x=\"22\" y=\"22\" width=\"36\" height=\"5\" rx=\"2\" fill=\"#12213a\"/><circle cx=\"40\" cy=\"18\" r=\"2.6\" fill=\"#f0b429\"/></svg>","solverRole":"child","constraints":[{"type":"extreme_in_area","dir":"E"},{"type":"beside","obj":"xmastree","rule":true}]},{"id":"C","name":"Colette","gender":"F","role":"adult","color":"#1565c0","avatar":{"bg":"#6a1b9a","skin":"#f0cdb0","hair":"#7a4a2a","style":"long","shirt":"#b83a5a","earrings":true},"clue":"彼女のエリアには<b>他に女性がいなかった</b>。","job":"子どもたちの母親","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Colette\"><rect width=\"80\" height=\"80\" fill=\"#6a1b9a\"/><path d=\"M22 42 Q20 14 40 14 Q60 14 58 42 L62 72 L18 72 Z\" fill=\"#7a4a2a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#b83a5a\"/><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=\"#7a4a2a\"/><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":"adult","constraints":[{"type":"no_gender_in_area","gender":"F"}]},{"id":"D","name":"Dermot","gender":"M","role":"adult","color":"#6a1b9a","avatar":{"bg":"#1565c0","skin":"#f1c8a5","hair":"#b7482c","style":"short","shirt":"#264653","beard":true},"clue":"彼は自分のエリアの<b>角</b>にいた。彼の<b>列</b>のどこかに<b>モミの木</b>があった。","job":"子どもたちの父親","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Dermot\"><rect width=\"80\" height=\"80\" fill=\"#1565c0\"/><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=\"#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\"/><path d=\"M27 38 Q30 52 40 53 Q50 52 53 38 Q50 47 40 48 Q30 47 27 38 Z\" fill=\"#b7482c\"/></svg>","solverRole":"adult","constraints":[{"type":"corner_of_area"},{"type":"col_has","obj":"fir"}]},{"id":"E","name":"Edna","gender":"F","role":"adult","color":"#e65100","avatar":{"bg":"#3d2a5a","skin":"#f6d8c0","hair":"#d9d4cc","style":"bun","shirt":"#5b2c6f","glasses":true,"necklace":true},"clue":"彼女の<b>列</b>のどこかに<b>椅子</b>があった。","job":"Vaclavの妹","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Edna\"><rect width=\"80\" height=\"80\" fill=\"#3d2a5a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#5b2c6f\"/><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\"/><circle cx=\"40\" cy=\"15\" r=\"7\" fill=\"#d9d4cc\"/><path d=\"M26 32 Q26 16 40 16 Q54 16 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#d9d4cc\"/><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":"adult","constraints":[{"type":"col_has","obj":"chair"}]},{"id":"V","name":"Vaclav","gender":"M","role":"victim","color":"#1b1b1b","avatar":{"bg":"#5a2a2a","skin":"#e4b998","hair":"#e8e4dc","style":"bald","shirt":"#c62828","beard":true,"scarf":"#2e7d32"},"clue":"<b>被害者。</b>彼は<b>雪の庭</b>で、<b>雪だるま</b>の隣で発見された――犯人と二人きりで。","job":"おじいさん、山荘の持ち主","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Vaclav\"><rect width=\"80\" height=\"80\" fill=\"#5a2a2a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#c62828\"/><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 Q26 22 30 20 L30 34 Q26 34 26 30 Z\" fill=\"#e8e4dc\"/><path d=\"M54 30 Q54 22 50 20 L50 34 Q54 34 54 30 Z\" fill=\"#e8e4dc\"/><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=\"#e8e4dc\"/><path d=\"M30 58 Q40 70 50 58 L48 66 Q40 76 32 66 Z\" fill=\"#2e7d32\"/><path d=\"M12 12 L68 68 M68 12 L12 68\" stroke=\"#e0362e\" stroke-width=\"5\" stroke-linecap=\"round\" opacity=\".9\"/></svg>","solverRole":"adult","constraints":[{"type":"area","areas":["Snowy Garden"]},{"type":"beside","obj":"snowman"}]}],"victim":"V","murderer":"E","solution":{"V":[1,5],"E":[2,6],"B":[3,4],"A":[4,3],"D":[5,1],"C":[6,2]},"walkthrough":[{"place":["A","B"],"cand":{"C":[[1,2],[1,5],[2,1],[2,6],[5,1],[5,2],[5,5],[5,6],[6,2],[6,5]],"D":[[2,6],[5,1],[5,6]],"E":[[2,6],[5,6]]},"text":"特別ルールにより、子ども二人はどちらもクリスマスツリー（R3C3）の隣、つまりリビングにいる：R2C3、R3C2、R3C4、R4C3のどれかだ。Avrilは暖炉（R2C2）の隣にいなかったので、R2C3とR3C2は除外される：AvrilはR3C4かR4C3だ。Byronはリビングで最も東にいる人物だったので、AvrilはByronより東にはいられない。もしAvrilがR3C4なら、ByronにはR2C3かR3C2しか残らないが、どちらもAvrilより西だ。よって<b>AvrilはR4C3</b>にいる。そしてAvrilより西にはいられず、Avrilの列も使えないByronは<b>R3C4</b>にいる。"},{"place":["D","E"],"cand":{"C":[[1,2],[1,5],[6,2],[6,5]]},"text":"Ednaの列のどこかに椅子があった：椅子はR3C6とR5C6にあるので、Ednaは6列、つまりR2C6かR5C6にいる（R3C6はByronの行）。Dermotは自分のエリアの角にいて、彼の列にはモミの木があった：モミの木は1列と6列にあり、そこでまだ空いている角のマスはR5C1（薪小屋）、R2C6、R5C6だ。6列はEdnaが取れる唯一の列なので、<b>DermotはR5C1</b>にいる。5行は彼のもので、<b>EdnaはR2C6</b>にいる。"},{"place":["C"],"cand":{"V":[[1,5]]},"text":"Coletteと被害者には、1行と6行、2列と5列が残る：R1C2、R1C5、R6C2、R6C5。Coletteのエリアには他に女性がいなかった。Ednaは雪の庭（R2C6）にいて、R1C2、R1C5、R6C5はすべて雪の庭に属する――よって<b>ColetteはR6C2</b>にいる。薪小屋でDermotと一緒だ。"},{"final":true,"text":"事件解決：最後の空きマスR1C5は被害者のマスだ――雪の庭で、雪だるまの隣、カードに書かれているとおりだ。Vaclavおじいさんはそこで妹と二人きりだった。<b>犯人はEdnaだ！</b>"}],"solver":{"rules":[],"occupiable":["armchair","chair","doormat","sled"]},"verification":{"tool":"tools/murdoku_solver.py","unique":true,"guessFree":true,"checked":"2026-09-29"}}