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:



2
41
23
5x5 Nurikabe Puzzle ID: 1,648,039
311
3
22
5x5 Nurikabe Puzzle ID: 4,118,948
42
13
1
5x5 Nurikabe Puzzle ID: 8,640,049
132
111
5x5 Nurikabe Puzzle ID: 59,656
42
2
2
5x5 Nurikabe Puzzle ID: 1,652,313
31
2
1
3
5x5 Nurikabe Puzzle ID: 5,013,195
5
22
13
5x5 Nurikabe Puzzle ID: 158,982
3
211
31
5x5 Nurikabe Puzzle ID: 6,527,366
4
13
4
5x5 Nurikabe Puzzle ID: 6,983,761
24
11
31
5x5 Nurikabe Puzzle ID: 1,625,059
211
3
2
3
5x5 Nurikabe Puzzle ID: 8,425,497
15
11
12
5x5 Nurikabe Puzzle ID: 2,630,014
21
21
31
5x5 Nurikabe Puzzle ID: 1,559,709
31
32
1
5x5 Nurikabe Puzzle ID: 4,618,341
4
1
2
32
5x5 Nurikabe Puzzle ID: 7,832,990
25
14
5x5 Nurikabe Puzzle ID: 2,178,884
1
23
4
5x5 Nurikabe Puzzle ID: 516,792
2
23
1
21
5x5 Nurikabe Puzzle ID: 8,716,897
1
133
31
5x5 Nurikabe Puzzle ID: 8,540,901
322
11
2
5x5 Nurikabe Puzzle ID: 5,573,036
12
4
111
5x5 Nurikabe Puzzle ID: 2,198,074
315
2
2
5x5 Nurikabe Puzzle ID: 2,005,298
62
3
2
5x5 Nurikabe Puzzle ID: 428,916
1
2
1
122
5x5 Nurikabe Puzzle ID: 6,044,687
1
43
111
5x5 Nurikabe Puzzle ID: 6,059,822
32
21
31
5x5 Nurikabe Puzzle ID: 7,047,487
41
21
1
1
5x5 Nurikabe Puzzle ID: 3,205,009
1
212
111
5x5 Nurikabe Puzzle ID: 5,440,443
1
2
11
3
1
5x5 Nurikabe Puzzle ID: 7,867,983
33
12
2
5x5 Nurikabe Puzzle ID: 7,760,434
1
3
25
5x5 Nurikabe Puzzle ID: 9,652,081
5
2
11
1
5x5 Nurikabe Puzzle ID: 3,176,002
1
321
22
5x5 Nurikabe Puzzle ID: 8,586,151
12
3
311
5x5 Nurikabe Puzzle ID: 8,278,714
34
3
1
5x5 Nurikabe Puzzle ID: 968,452


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