Windoku
Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.Each of the four...
Puzzles 355
Solved 3,790
Players 1,147
Median time 16m 30s
Avg steps 128.2
Difficulty Easy
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Solved 21
Median time 11m 14s
Avg steps 89.4
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Median time 24m 10s
Avg steps 186.3
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Median time 13m 55s
Avg steps 84.9
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Solved 20
Median time 10m 20s
Avg steps 96.8
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Solved 19
Median time 20m 39s
Avg steps 151.4
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Solved 19
Median time 14m 08s
Avg steps 138.3
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Solved 19
Median time 16m 28s
Avg steps 99.0
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Solved 19
Median time 8m 29s
Avg steps 92.4
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Solved 19
Median time 7m 57s
Avg steps 78.2
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Solved 18
Median time 26m 10s
Avg steps 187.5
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Solved 18
Median time 18m 19s
Avg steps 162.0
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Solved 18
Median time 20m 32s
Avg steps 113.1
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Solved 18
Median time 13m 00s
Avg steps 140.9
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Solved 18
Median time 12m 19s
Avg steps 116.4
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Solved 18
Median time 11m 12s
Avg steps 94.9
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Solved 18
Median time 13m 18s
Avg steps 94.8
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Solved 17
Median time 35m 15s
Avg steps 177.9
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Solved 17
Median time 28m 40s
Avg steps 146.1
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Solved 17
Median time 17m 54s
Avg steps 119.2
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Solved 17
Median time 13m 49s
Avg steps 140.0
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Solved 17
Median time 16m 21s
Avg steps 134.4
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Solved 17
Median time 12m 10s
Avg steps 111.9
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Solved 17
Median time 9m 22s
Avg steps 82.2
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Solved 16
Median time 38m 32s
Avg steps 210.1
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Solved 16
Median time 24m 00s
Avg steps 188.3
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Solved 16
Median time 18m 29s
Avg steps 147.7
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Solved 16
Median time 20m 09s
Avg steps 151.3
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Difficulty Easy
Solved 16
Median time 15m 10s
Avg steps 113.5
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Difficulty Easy
Solved 16
Median time 13m 43s
Avg steps 117.6
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Difficulty Easy
Solved 16
Median time 12m 48s
Avg steps 138.8
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Rules summary
Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions. Each of the four shaded 3x3 boxes contains each digit from 1 to 9.
Full rules
FAQ
How is Windoku different from classic Sudoku?
It keeps the classic row, column, and box constraints, then adds the extra rule for this variant.
Is this Sudoku variant good for beginners?
Start with recommended puzzles or puzzles with many solves; they are usually easier to approach.
How is difficulty judged?
Difficulty uses real player time, step count, and solve samples; when data is limited, the page shows that stats are still collecting.