{"format":"murdoku-puzzle/1","id":"wreck-dive","version":2,"difficulty":"very-easy","level":2,"size":{"rows":7,"cols":7},"languages":["en","hu","de","fr","es","it","pt","ca","nl","pl","cs","ro","fi","tr","el","ru","uk","vi","ar","ko","ja","zh-Hans","zh-Hant"],"defaultLanguage":"en","title":"The Wreck Dive","tagline":"Saturday · Kalimera Bay · 10:20","author":"mathace","concept":"Murdoku – Manuel Garand (murdoku.com); unofficial fan-made case","created":"2026-09-14","story":"A group is diving the old wreck in Kalimera Bay, twenty metres down. When the divers surface, one of them is missing: Vince is found dead on the wreck. Six people were at the dive site – four divers in the water and two crew on the surface. One of them is the killer. Read every statement and find everyone’s exact position on the map. The killer was alone with the victim, in the same area.","rules":{"standard":["Every <b>row</b> and every <b>column</b> holds exactly <b>one person</b>. As soon as you place someone, cross out their whole row and column.","<b>“Beside”</b> = directly left, right, above or below, and <b>in the same area</b>. Squares with objects (helm, tanks, corals, the wreck’s cannon…) cannot be occupied; the bench and every free square can.","Directions refer to rows, not to the same column: <i>“she was north of Amber”</i> = in a row further up, in any column."],"special":["The <b>divers</b> – Amber, Brian, Carl, Dora and Vince – were <b>in the water</b> (Reef, Open Water or Wreck). The <b>crew</b> – Eric and Fiona – were <b>on the surface</b> (Dive Boat or Jetty)."]},"roleNames":{"diver":"diver","crew":"crew","victim":"victim"},"personGroups":[{"id":"divers","name":"Divers","persons":["A","B","C","D","V"]},{"id":"crew","name":"Crew","persons":["E","F"]}],"map":{"groups":[{"id":"surface","name":"SURFACE"},{"id":"sea","name":"UNDERWATER"}],"gaps":[],"areas":[{"id":"Dive Boat","cells":[[1,1],[1,2],[1,3],[1,4],[2,1],[2,2],[2,3],[2,4]],"fill":"#e5c89c","pattern":"planks","group":"surface","name":"Dive Boat"},{"id":"Jetty","cells":[[1,5],[1,6],[1,7],[2,5],[2,6],[2,7]],"fill":"#d6cbb5","pattern":"planks","group":"surface","name":"Jetty"},{"id":"Reef","cells":[[3,1],[3,2],[3,3],[4,1],[4,2],[4,3],[5,1],[5,2],[5,3]],"fill":"#8fd6c9","group":"sea","name":"Reef"},{"id":"Open Water","cells":[[3,4],[4,4],[5,4],[6,4],[7,4],[3,5],[3,6],[3,7],[6,1],[6,2],[6,3],[7,1],[7,2],[7,3]],"fill":"#6fb8e3","group":"sea","labelAt":[7,2],"name":"Open 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r=\"5\" fill=\"#a5733f\" stroke=\"#5a3a1c\" stroke-width=\"1.5\"/><g stroke=\"#6e4a2a\" stroke-width=\"3\" stroke-linecap=\"round\"><line x1=\"23\" y1=\"3\" x2=\"23\" y2=\"43\"/><line x1=\"3\" y1=\"23\" x2=\"43\" y2=\"23\"/><line x1=\"9\" y1=\"9\" x2=\"37\" y2=\"37\"/><line x1=\"37\" y1=\"9\" x2=\"9\" y2=\"37\"/></g>"},"cooler":{"occupiable":false,"name":"cooler box","icon":"<rect x=\"7\" y=\"14\" width=\"32\" height=\"26\" rx=\"4\" fill=\"#3d7dc8\" stroke=\"#1f4a80\" stroke-width=\"1.5\"/><rect x=\"5\" y=\"9\" width=\"36\" height=\"9\" rx=\"3\" fill=\"#e9f0f7\" stroke=\"#1f4a80\" stroke-width=\"1.5\"/><rect x=\"18\" y=\"5\" width=\"10\" height=\"5\" rx=\"2\" fill=\"#1f4a80\"/><rect x=\"12\" y=\"24\" width=\"22\" height=\"4\" rx=\"2\" fill=\"#e9f0f7\" opacity=\".8\"/>"},"tanks":{"occupiable":false,"name":"tank rack","icon":"<rect x=\"4\" y=\"30\" width=\"38\" height=\"6\" rx=\"2\" fill=\"#8a949c\" stroke=\"#3d444b\"/><rect x=\"9\" y=\"8\" width=\"11\" height=\"30\" rx=\"5\" 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stroke-width=\"1.5\"/>"}},"wallTypes":{},"objects":[{"cell":[1,1],"type":"helm"},{"cell":[1,2],"type":"cooler"},{"cell":[1,3],"type":"tanks"},{"cell":[2,2],"type":"bench"},{"cell":[2,4],"type":"ladder_deck"},{"cell":[1,7],"type":"bollard"},{"cell":[2,5],"type":"crate"},{"cell":[3,2],"type":"coral"},{"cell":[5,1],"type":"coral"},{"cell":[3,3],"type":"rock"},{"cell":[3,5],"type":"buoy"},{"cell":[3,6],"type":"anchor"},{"cell":[7,1],"type":"seaweed"},{"cell":[4,5],"type":"mast"},{"cell":[5,5],"type":"chest"},{"cell":[6,6],"type":"cannon"}],"wallFeatures":[],"extras":[],"cellSize":46},"persons":[{"id":"A","name":"Amber","gender":"F","role":"diver","color":"#c62828","avatar":{"bg":"#2f6f8f","skin":"#f1c8a5","hair":"#d9b464","style":"long","shirt":"#1b2a33","swimcap":"#1b2a33","goggles":true},"clue":"She was on the <b>Reef</b>, beside a <b>coral</b>.","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Amber\"><rect width=\"80\" height=\"80\" 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43 33 41 Z\" fill=\"#3a2a1c\"/><path d=\"M25 31 Q25 12 40 12 Q55 12 55 31 Q48 21 40 21 Q32 21 25 31 Z\" fill=\"#24404f\"/><path d=\"M28 24 Q40 16 52 24\" fill=\"none\" stroke=\"rgba(255,255,255,.35)\" stroke-width=\"1.5\"/><rect x=\"27\" y=\"20\" width=\"26\" height=\"8\" rx=\"4\" fill=\"none\" stroke=\"#1b2a33\" stroke-width=\"2\"/><rect x=\"29\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/><rect x=\"41\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/></svg>","solverRole":"guest","constraints":[{"type":"area","areas":["Reef","Open Water","Wreck"]},{"type":"beside","obj":"chest"}]},{"id":"D","name":"Dora","gender":"F","role":"diver","color":"#6a1b9a","avatar":{"bg":"#4e6f8a","skin":"#f6d8c0","hair":"#b7482c","style":"curly","shirt":"#1e5f6e","swimcap":"#1e5f6e","goggles":true,"earrings":true},"clue":"She was on the <b>Reef</b>, but <b>not</b> beside a coral. She was <b>north of Amber</b>.","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Dora\"><rect width=\"80\" height=\"80\" fill=\"#4e6f8a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#1e5f6e\"/><rect x=\"34\" y=\"44\" width=\"12\" height=\"13\" fill=\"#f6d8c0\"/><ellipse cx=\"40\" cy=\"34\" rx=\"14\" ry=\"16\" fill=\"#f6d8c0\"/><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=\"#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=\"M25 31 Q25 12 40 12 Q55 12 55 31 Q48 21 40 21 Q32 21 25 31 Z\" fill=\"#1e5f6e\"/><path d=\"M28 24 Q40 16 52 24\" fill=\"none\" stroke=\"rgba(255,255,255,.35)\" stroke-width=\"1.5\"/><rect x=\"27\" y=\"20\" width=\"26\" height=\"8\" rx=\"4\" fill=\"none\" stroke=\"#1b2a33\" stroke-width=\"2\"/><rect x=\"29\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/><rect x=\"41\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/><circle cx=\"26\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/><circle cx=\"54\" cy=\"41\" r=\"1.8\" fill=\"#f0c95a\"/></svg>","solverRole":"guest","constraints":[{"type":"area","areas":["Reef","Open Water","Wreck"]},{"type":"area","areas":["Reef"]},{"type":"not_beside","obj":"coral"},{"type":"rel","q":"A","dir":"N"}]},{"id":"E","name":"Eric","gender":"M","role":"crew","color":"#e65100","avatar":{"bg":"#7a6a3c","skin":"#e9c6a4","hair":"#c9c3b8","style":"short","shirt":"#f4efe6","cap":true,"beard":true,"glasses":true},"clue":"He was on the <b>Dive Boat</b>. He was <b>not sitting</b>.","job":"captain","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Eric\"><rect width=\"80\" height=\"80\" fill=\"#7a6a3c\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#f4efe6\"/><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=\"#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\"/><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":"area","areas":["Dive Boat","Jetty"]},{"type":"area","areas":["Dive Boat"]},{"type":"not_on","obj":"bench"}]},{"id":"F","name":"Fiona","gender":"F","role":"crew","color":"#00838f","avatar":{"bg":"#8c3a5a","skin":"#f0cdb0","hair":"#2b1c14","style":"ponytail","shirt":"#d8455f","whistle":true,"headband":"#f0b429"},"clue":"She was on the <b>Jetty</b>.","job":"dive guide","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Fiona\"><rect width=\"80\" height=\"80\" fill=\"#8c3a5a\"/><path d=\"M50 30 Q64 34 60 62 L54 62 Q56 40 48 36 Z\" fill=\"#2b1c14\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#d8455f\"/><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=\"#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\"/><rect x=\"26\" y=\"23\" width=\"28\" height=\"5\" rx=\"2\" fill=\"#f0b429\"/><path d=\"M33 56 Q40 68 47 56\" fill=\"none\" stroke=\"#c9302c\" stroke-width=\"1.6\"/><rect x=\"37\" y=\"66\" width=\"7\" height=\"5\" rx=\"1.5\" fill=\"#e0b040\" stroke=\"#7a5a12\" stroke-width=\".8\"/></svg>","solverRole":"staff","constraints":[{"type":"area","areas":["Dive Boat","Jetty"]},{"type":"area","areas":["Jetty"]}]},{"id":"V","name":"Vince","gender":"M","role":"victim","color":"#1b1b1b","avatar":{"bg":"#5a2a2a","skin":"#e4b998","hair":"#2a1d16","style":"slick","shirt":"#1b2a33","swimcap":"#1b2a33","goggles":true},"clue":"<b>The Victim.</b> He was alone with the murderer.","avatarSvg":"<svg viewBox=\"0 0 80 80\" xmlns=\"http://www.w3.org/2000/svg\" role=\"img\" aria-label=\"Vince\"><rect width=\"80\" height=\"80\" fill=\"#5a2a2a\"/><path d=\"M10 80 Q12 56 40 54 Q68 56 70 80 Z\" fill=\"#1b2a33\"/><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=\"#2a1d16\"/><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=\"M25 31 Q25 12 40 12 Q55 12 55 31 Q48 21 40 21 Q32 21 25 31 Z\" fill=\"#1b2a33\"/><path d=\"M28 24 Q40 16 52 24\" fill=\"none\" stroke=\"rgba(255,255,255,.35)\" stroke-width=\"1.5\"/><rect x=\"27\" y=\"20\" width=\"26\" height=\"8\" rx=\"4\" fill=\"none\" stroke=\"#1b2a33\" stroke-width=\"2\"/><rect x=\"29\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/><rect x=\"41\" y=\"21\" width=\"10\" height=\"6\" rx=\"3\" fill=\"#7fd1e8\" opacity=\".85\"/><path d=\"M12 12 L68 68 M68 12 L12 68\" stroke=\"#e0362e\" stroke-width=\"5\" stroke-linecap=\"round\" opacity=\".9\"/></svg>","solverRole":"guest","constraints":[{"type":"area","areas":["Reef","Open Water","Wreck"]}]}],"victim":"V","murderer":"C","solution":{"F":[1,6],"E":[2,1],"B":[3,4],"D":[4,3],"A":[5,2],"C":[6,5],"V":[7,7]},"walkthrough":[{"place":["B"],"cand":{"A":[[4,1],[4,2],[5,2]],"D":[[4,3],[5,3]]},"text":"Brian was beside the dive buoy (R3C5). East of it lies the anchor, and the square below it belongs to the Wreck, so the only Open Water square beside the buoy is <b>R3C4</b>: Brian is there. Cross out row 3 and column 4."},{"place":["D","A"],"cand":{"E":[[2,1],[2,3]]},"text":"Amber is on the Reef beside a coral: R4C1, R4C2 or R5C2 (R3C1 is in Brian’s row). Dora is on the Reef but not beside a coral: R4C3 or R5C3. Dora was north of Amber, so Dora cannot be in row 5 – Amber would have to be below the Reef. So <b>Dora is at R4C3 and Amber at R5C2</b>. Cross out rows 4–5 and columns 2–3."},{"place":["E"],"cand":{"C":[[5,6],[6,5]]},"text":"Eric is on the Dive Boat but not sitting, so not on the bench: R1C4, R2C1 or R2C3. Column 4 is Brian’s and column 3 is Dora’s, so <b>Eric is at R2C1</b>. Cross out row 2 and column 1."},{"place":["C"],"cand":{"F":[[1,5],[1,6]]},"text":"Carl was beside the treasure chest (R5C5): R5C6 or R6C5. Row 5 is Amber’s, so <b>Carl is at R6C5</b>. Cross out row 6 and column 5."},{"place":["F"],"cand":{"V":[[7,7]]},"text":"Fiona is on the Jetty: R1C5, R1C6, R2C6 or R2C7. Row 2 is Eric’s and column 5 is Carl’s, so <b>Fiona is at R1C6</b>. Cross out row 1 and column 6."},{"place":["V"],"text":"Only one square is left, R7C7 on the Wreck: <b>Vince</b> was there – alone with Carl. <b>Carl is the murderer!</b>"},{"final":true,"text":"Case closed: Vince was alone with Carl on the Wreck."}],"solver":{"rules":[],"groups":{"Surface":["Dive Boat","Jetty"],"Underwater":["Reef","Open Water","Wreck"]},"occupiable":["bench"]},"verification":{"tool":"tools/murdoku_solver.py","unique":true,"guessFree":true,"checked":"2026-09-14"}}