Nurikabe


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Nurikabe is a logic puzzle with a bit complicated rules and challenging solutions.

The rules are not so simple. :)
You have a grid of squares Some cells of the grid start containing numbers. The goal is to determine whether each of the cells of the grid is "black" or "white" (Islands in the Stream calls these "water" and "land" respectively). The black cells form "the nurikabe" (Islands in the Stream calls it "the stream"): they must all be orthogonally contiguous (form a single polyomino), number-free, and contain no 2x2 or larger solid rectangles (Islands in the Stream calls such illegal blocks "pools"). The white cells form "islands" (which is where Islands in the Stream got its name): each number n must be part of an n-omino composed only of white cells. All white cells must belong to exactly one island; islands must have exactly one numbered cell. Solvers will typically shade in cells they have deduced to be black and dot (non-numbered) cells deduced to be white.
Left click on a square to make it black. Right click to mark with dot. Click and drag to mark more than one square.

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Nurikabe




Size:



4
4
13
5x5 Nurikabe Puzzle ID: 7,196,394
3
1
1
132
5x5 Nurikabe Puzzle ID: 2,039,112
241
12
5x5 Nurikabe Puzzle ID: 8,932,294
42
43
5x5 Nurikabe Puzzle ID: 6,357,498
31
3
311
5x5 Nurikabe Puzzle ID: 2,603,583
34
4
1
5x5 Nurikabe Puzzle ID: 17,820
311
11
1
1
5x5 Nurikabe Puzzle ID: 9,118,618
13
2
312
5x5 Nurikabe Puzzle ID: 3,869,994
31
34
1
5x5 Nurikabe Puzzle ID: 5,464,504
14
21
12
5x5 Nurikabe Puzzle ID: 2,689,113
11
33
4
5x5 Nurikabe Puzzle ID: 8,977,965
22
41
12
5x5 Nurikabe Puzzle ID: 1,302,097
2
12
14
5x5 Nurikabe Puzzle ID: 7,081,718
21
1
323
5x5 Nurikabe Puzzle ID: 6,402,726
33
21
2
5x5 Nurikabe Puzzle ID: 2,428,413
212
2
2
11
5x5 Nurikabe Puzzle ID: 1,569,938
324
4
5x5 Nurikabe Puzzle ID: 8,277,349
13
12
23
5x5 Nurikabe Puzzle ID: 881,671
3
2
3
22
5x5 Nurikabe Puzzle ID: 6,820,664
2
14
3
1
5x5 Nurikabe Puzzle ID: 1,509,845
44
31
5x5 Nurikabe Puzzle ID: 2,291,249
21
1
4
5
5x5 Nurikabe Puzzle ID: 6,583,201
44
1
22
5x5 Nurikabe Puzzle ID: 8,372,978
21
21
22
5x5 Nurikabe Puzzle ID: 1,693,372
32
3
2
11
5x5 Nurikabe Puzzle ID: 4,748,466
1
21
24
5x5 Nurikabe Puzzle ID: 4,603,285
3
41
21
5x5 Nurikabe Puzzle ID: 4,811,617
4
2
221
5x5 Nurikabe Puzzle ID: 3,639,336
2
1
431
5x5 Nurikabe Puzzle ID: 279,925
24
23
1
5x5 Nurikabe Puzzle ID: 5,074,478
12
3
1
12
5x5 Nurikabe Puzzle ID: 849,478
22
3
2
5x5 Nurikabe Puzzle ID: 2,714,414
4
221
1
5x5 Nurikabe Puzzle ID: 5,683,956
12
12
23
5x5 Nurikabe Puzzle ID: 762,192
33
14
5x5 Nurikabe Puzzle ID: 1,892,902


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