{"format":"murdoku-puzzle/1","id":"lake","version":1,"difficulty":"easy","level":3,"size":{"rows":5,"cols":5},"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":"El lago de las barcas","tagline":"Un parque urbano victoriano · un domingo de julio de 1895 · tres barcas en el agua","author":"mathace","concept":"Murdoku – Manuel Garand (murdoku.com); unofficial fan-made case","created":"2026-09-29","story":"Londres, una calurosa tarde de domingo de julio de 1895. En el parque de la ciudad la banda de música afinaba, tres barcas de remos se deslizaban por el lago, la rosaleda estaba en plena floración y la terraza del café servía limonada a la sombra. Vyvyan, un banquero conocido por no dejar nunca propina, se había sentado con su periódico a la mesa de la terraza. Cuando la banda empezó a tocar a las cuatro, lo encontraron desplomado junto a esa mesa. Solo cuatro personas habían estado cerca de él, y cada una dio una declaración de una sola frase: averigua quién estaba a solas con él.","rules":{"standard":["Cada <b>fila</b> y cada <b>columna</b> contiene exactamente <b>una persona</b>. En cuanto coloques a alguien, tacha toda su fila y su columna.","<b>«Junto a»</b> = directamente a la izquierda, a la derecha, arriba o abajo, y <b>en la misma zona</b>. Las casillas con objetos (la mesa, los parterres de flores, el agua, la boya y la fuente) no se pueden ocupar; las sillas, las barcas de remos y el banco sí.","El asesino estaba <b>a solas con la víctima</b>: nadie más se encontraba en esa zona."],"special":[]},"roleNames":{"visitor":"visitante","staff":"personal","victim":"víctima"},"personGroups":[{"id":"visitors","name":"Visitantes","persons":["A","B","V"]},{"id":"staff","name":"El personal del parque","persons":["C","D"]}],"map":{"groups":[],"gaps":[],"areas":[{"id":"Café Terrace","cells":[[1,1],[1,2],[1,3],[2,1],[2,2],[3,1]],"fill":"#f1e3cf","pattern":"tiles","labelAt":[2,2],"name":"Terraza del Café"},{"id":"Lake","cells":[[2,3],[2,4],[3,2],[3,3],[3,4],[4,2],[4,3]],"fill":"#cfe3ee","labelAt":[3,3],"name":"Lago"},{"id":"Boathouse","cells":[[4,1],[5,1],[5,2]],"fill":"#e2d3b8","pattern":"planks","labelAt":[5,2],"name":"Cobertizo de barcas"},{"id":"Rose Garden","cells":[[1,4],[1,5],[2,5],[3,5],[4,4],[4,5],[5,3],[5,4],[5,5]],"fill":"#f3dde3","pattern":"marble","labelAt":[4,4],"name":"Rosaleda"}],"objectTypes":{"bench":{"occupiable":true,"name":"banco","icon":"<rect x=\"7\" y=\"8\" width=\"3.2\" height=\"31\" fill=\"#5e4127\"/><rect x=\"35.8\" y=\"8\" width=\"3.2\" height=\"31\" fill=\"#5e4127\"/><rect x=\"4\" y=\"8\" width=\"38\" height=\"6\" rx=\"1.5\" fill=\"#a5733f\" stroke=\"#4e3a1e\" stroke-width=\"1.3\"/><rect x=\"4\" y=\"17.5\" width=\"38\" height=\"6\" rx=\"1.5\" fill=\"#c08a50\" stroke=\"#6b4a26\" stroke-width=\"1.2\"/><rect x=\"4\" y=\"25\" width=\"38\" height=\"6\" rx=\"1.5\" fill=\"#c08a50\" stroke=\"#6b4a26\" stroke-width=\"1.2\"/><rect x=\"4\" y=\"32.5\" width=\"38\" height=\"6\" rx=\"1.5\" fill=\"#c08a50\" stroke=\"#6b4a26\" stroke-width=\"1.2\"/>"},"boat":{"occupiable":true,"name":"barca de remos","icon":"<path d=\"M5 25 q18 13 36 0 l-3 -9 h-30 z\" fill=\"#8a5a34\" stroke=\"#3f2d1d\" stroke-width=\"1.4\"/><rect x=\"12\" y=\"10\" width=\"22\" height=\"6\" rx=\"2\" fill=\"#d9d5cc\" stroke=\"#8c8a82\"/><rect x=\"21\" y=\"1\" width=\"4\" height=\"9\" fill=\"#3f2d1d\"/><path d=\"M5 25 q18 5 36 0\" fill=\"none\" stroke=\"#3f2d1d\" stroke-width=\"1\"/>"},"chair":{"occupiable":true,"name":"silla","icon":"<rect x=\"9\" y=\"7\" width=\"28\" height=\"32\" rx=\"6\" fill=\"#fbfaf6\" stroke=\"#8c8a82\" stroke-width=\"1.5\"/><rect x=\"9\" y=\"7\" width=\"28\" height=\"9\" rx=\"4\" fill=\"#d9d5cc\" stroke=\"#8c8a82\" stroke-width=\"1.5\"/>"},"buoy":{"occupiable":false,"name":"boya","icon":"<ellipse cx=\"23\" cy=\"38\" rx=\"14\" ry=\"4\" fill=\"#ffffff\" opacity=\".6\"/><path d=\"M12 36 q1 -14 11 -18 q10 4 11 18 z\" fill=\"#e0362e\" stroke=\"#7a1f1c\" stroke-width=\"1.2\"/><rect x=\"21\" y=\"6\" width=\"3\" height=\"14\" fill=\"#444\"/><path d=\"M24 6 h14 l-14 9 z\" fill=\"#e0362e\"/><path d=\"M24 6 h14 l-14 9 z\" fill=\"none\" stroke=\"#fff\" stroke-width=\"1\"/><line x1=\"24\" y1=\"6\" x2=\"38\" y2=\"15\" stroke=\"#fff\" stroke-width=\"2\"/>"},"flowers":{"occupiable":false,"name":"parterre de flores","icon":"<path d=\"M17 28 h12 l-2 12 h-8 z\" fill=\"#c9c3b8\" stroke=\"#6b6660\" stroke-width=\"1.2\"/><circle cx=\"16\" cy=\"19\" r=\"5\" fill=\"#e0526a\"/><circle cx=\"30\" cy=\"19\" r=\"5\" fill=\"#f2a53a\"/><circle cx=\"23\" cy=\"12\" r=\"5\" fill=\"#f2d24a\"/><circle cx=\"23\" cy=\"22\" r=\"4.5\" fill=\"#d94a8a\"/><path d=\"M12 25 q6 -8 11 -6\" fill=\"none\" stroke=\"#3f8a4a\" stroke-width=\"2\"/><path d=\"M34 25 q-6 -8 -11 -6\" fill=\"none\" stroke=\"#3f8a4a\" stroke-width=\"2\"/>"},"fountain":{"occupiable":false,"name":"fuente","icon":"<ellipse cx=\"23\" cy=\"33\" rx=\"18\" ry=\"8\" fill=\"#9fd3ea\" stroke=\"#4a7c95\" stroke-width=\"1.5\"/><rect x=\"19\" y=\"14\" width=\"8\" height=\"18\" 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\"/>"},"table":{"occupiable":false,"name":"mesa","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\"/>"},"water":{"occupiable":false,"name":"agua","icon":"<rect x=\"0\" y=\"0\" width=\"46\" height=\"46\" fill=\"#3f7d9c\"/><path d=\"M-2 12 q6 -5 12 0 t12 0 t12 0 t12 0 M-2 24 q6 -5 12 0 t12 0 t12 0 t12 0 M-2 36 q6 -5 12 0 t12 0 t12 0 t12 0\" fill=\"none\" stroke=\"#2b5e79\" stroke-width=\"3.2\"/><path d=\"M-2 15 q6 -5 12 0 t12 0 t12 0 t12 0 M-2 27 q6 -5 12 0 t12 0 t12 0 t12 0 M-2 39 q6 -5 12 0 t12 0 t12 0 t12 0\" fill=\"none\" stroke=\"rgba(255,255,255,.42)\" stroke-width=\"1.5\"/>"}},"wallTypes":{},"objects":[{"cell":[1,1],"type":"chair"},{"cell":[1,2],"type":"table"},{"cell":[1,3],"type":"chair"},{"cell":[1,5],"type":"flowers"},{"cell":[2,1],"type":"flowers"},{"cell":[2,3],"type":"water"},{"cell":[2,4],"type":"boat"},{"cell":[3,2],"type":"boat"},{"cell":[3,3],"type":"water"},{"cell":[3,4],"type":"water"},{"cell":[3,5],"type":"bench"},{"cell":[4,1],"type":"chair"},{"cell":[4,2],"type":"water"},{"cell":[4,3],"type":"boat"},{"cell":[5,1],"type":"buoy"},{"cell":[5,4],"type":"fountain"}],"wallFeatures":[],"extras":[],"cellSize":46},"persons":[{"id":"A","name":"Adelaide","gender":"F","role":"visitor","color":"#c62828","avatar":{"bg":"#35607a","skin":"#f6d8c0","hair":"#7a4a2a","style":"bun","shirt":"#2f3b4c","necklace":true},"clue":"Estaba en la <b>última columna</b>.","job":"una institutriz en su tarde libre","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Adelaide\"><rect width=\"80\" height=\"80\" fill=\"#35607a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#2f3b4c\"/><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=\"#7a4a2a\"/><path d=\"M26 32 Q26 16 40 16 Q54 16 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\"/></svg>","solverRole":"visitor","constraints":[{"type":"col","cols":[5]}]},{"id":"B","name":"Barnabas","gender":"M","role":"visitor","color":"#2e7d32","avatar":{"bg":"#1b2a33","skin":"#e4b998","hair":"#e8e4dc","style":"short","shirt":"#264653","beard":true,"cap":true},"clue":"Estaba sentado en una <b>barca de remos</b>.","job":"un capitán de barco jubilado","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Barnabas\"><rect width=\"80\" height=\"80\" fill=\"#1b2a33\"/><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=\"#e4b998\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#e4b998\"/><path d=\"M26 32 Q26 15 40 15 Q54 15 54 32 Q50 24 40 24 Q30 24 26 32 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=\"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":"visitor","constraints":[{"type":"on","obj":"boat"}]},{"id":"C","name":"Clarissa","gender":"F","role":"staff","color":"#1565c0","avatar":{"bg":"#ad1457","skin":"#f3d3b5","hair":"#d9b464","style":"ponytail","shirt":"#e26d8a","headband":"#f2a53a"},"clue":"Estaba en la <b>primera fila</b>.","job":"la florista de la puerta del parque","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Clarissa\"><rect width=\"80\" height=\"80\" fill=\"#ad1457\"/><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=\"#e26d8a\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f3d3b5\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f3d3b5\"/><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=\"#f2a53a\"/></svg>","solverRole":"staff","constraints":[{"type":"row","rows":[1]}]},{"id":"D","name":"Dudley","gender":"M","role":"staff","color":"#6a1b9a","avatar":{"bg":"#3f6a3a","skin":"#e7b98f","hair":"#3a2a1c","style":"short","shirt":"#5d4037","mustache":true,"mustacheColor":"#3a2a1c","cap":true},"clue":"Estaba junto a un <b>parterre de flores</b>. <b>No</b> estaba junto a la <b>mesa</b>.","job":"el encargado de las barcas","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Dudley\"><rect width=\"80\" height=\"80\" fill=\"#3f6a3a\"/><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 32 Q26 15 40 15 Q54 15 54 32 Q50 24 40 24 Q30 24 26 32 Z\" fill=\"#3a2a1c\"/><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\"/><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":"staff","constraints":[{"type":"beside","obj":"flowers"},{"type":"not_beside","obj":"table"}]},{"id":"V","name":"Vyvyan","gender":"M","role":"victim","color":"#1b1b1b","avatar":{"bg":"#5a2a2a","skin":"#f1c8a5","hair":"#8a8278","style":"slick","shirt":"#1b1b1b","mustache":true,"mustacheColor":"#8a8278","tophat":"#1b1b1b"},"clue":"<b>La víctima.</b> Lo encontraron en la <b>Terraza del Café</b>, junto a la <b>mesa</b> – a solas con el asesino.","job":"un banquero que nunca dejaba propina","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Vyvyan\"><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=\"#f1c8a5\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f1c8a5\"/><path d=\"M26 30 Q27 16 44 15 Q56 15 55 26 Q48 22 40 23 Q30 24 26 30 Z\" fill=\"#8a8278\"/><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=\"#8a8278\"/><rect x=\"26\" y=\"0\" width=\"28\" height=\"26\" rx=\"2\" fill=\"#1b1b1b\"/><rect x=\"19\" y=\"24\" width=\"42\" height=\"6\" rx=\"3\" fill=\"#1b1b1b\" stroke=\"rgba(0,0,0,.25)\"/><rect x=\"26\" y=\"19\" width=\"28\" height=\"5\" fill=\"#c9a03a\"/><path d=\"M12 12 L68 68 M68 12 L12 68\" stroke=\"#e0362e\" stroke-width=\"5\" stroke-linecap=\"round\" opacity=\".9\"/></svg>","solverRole":"visitor","constraints":[{"type":"area","areas":["Café Terrace"]},{"type":"beside","obj":"table"}]}],"victim":"V","murderer":"D","solution":{"C":[1,4],"V":[2,2],"D":[3,1],"B":[4,3],"A":[5,5]},"walkthrough":[{"place":["D"],"cand":{"A":[[2,5],[4,5],[5,5]],"B":[[2,4],[4,3]],"C":[[1,3],[1,4]]},"text":"Dudley estaba junto a un parterre de flores, pero no junto a la mesa. Los parterres de flores están en R1C5, en la Rosaleda, y en R2C1, en la Terraza del Café; las casillas contiguas en la misma zona son R1C4, R2C5, R1C1, R2C2 y R3C1 – y R1C1 y R2C2 también están junto a la mesa. Quedan R1C4, R2C5 y R3C1. R1C4 está en la primera fila, la única fila que puede tener Clarissa; R2C5 está en la última columna, la única columna que puede tener Adelaide. Así que <b>Dudley está en R3C1</b>, y nadie más puede usar la fila 3 ni la columna 1."},{"place":["B"],"cand":{"A":[[5,5]],"C":[[1,4]],"V":[[2,2]]},"text":"Ahora miremos las columnas. Barnabas está en una de sus barcas, en R2C4 o en R4C3, y Clarissa está en R1C3 o en R1C4: entre los dos llenan las columnas 3 y 4. Adelaide tiene la columna 5 y Dudley la columna 1, así que sobra la columna 2: tiene que ser la de la víctima. Sus casillas libres son R2C2 y R5C2 (R1C2 es la mesa, R4C2 es agua, la fila 3 es de Dudley). En R5C2 la víctima habría estado a solas en el Cobertizo de barcas – las otras dos casillas del cobertizo están en la columna de Dudley –, pero el asesino estaba con ella. Así que la víctima está en la fila 2, y Barnabas no puede usarla: <b>Barnabas está en la barca en R4C3</b>."},{"place":["C","A"],"cand":{"V":[[2,2]]},"text":"La columna 3 es ahora de Barnabas, así que <b>Clarissa está en R1C4</b>. Las filas 2 y 4 están ocupadas, así que <b>Adelaide está en R5C5</b>."},{"final":true,"text":"Caso cerrado: la última casilla libre, R2C2, es de la víctima – en la Terraza del Café, junto a la mesa, tal como dice su tarjeta, aunque no hizo falta. Vyvyan estaba allí a solas con el encargado de las barcas. <b>¡Dudley es el asesino!</b>"}],"solver":{"rules":[],"occupiable":["bench","boat","chair"]},"verification":{"tool":"tools/murdoku_solver.py","unique":true,"guessFree":true,"checked":"2026-09-29"}}