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...
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Difficulty Easy
Solved 10
Median time 15m 06s
Avg steps 86.2
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Difficulty Easy
Solved 10
Median time 10m 07s
Avg steps 76.8
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Difficulty Easy
Solved 10
Median time 7m 43s
Avg steps 66.6
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Difficulty Collecting data
Solved 10
Median time 22m 23s
Avg steps 97.6
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Difficulty Collecting data
Solved 10
Median time 54m 13s
Avg steps 154.2
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Difficulty Collecting data
Solved 9
Median time 37m 07s
Avg steps 192.2
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Difficulty Collecting data
Solved 9
Median time 19m 30s
Avg steps 100.3
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Difficulty Collecting data
Solved 9
Median time 13m 32s
Avg steps 89.2
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Difficulty Collecting data
Solved 9
Median time 14m 14s
Avg steps 119.0
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Difficulty Collecting data
Solved 9
Median time 10m 03s
Avg steps 117.7
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Difficulty Collecting data
Solved 9
Median time 37m 58s
Avg steps 134.1
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Difficulty Collecting data
Solved 9
Median time 10m 46s
Avg steps 89.2
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Difficulty Collecting data
Solved 9
Median time 16m 07s
Avg steps 111.8
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Difficulty Collecting data
Solved 9
Median time 8m 58s
Avg steps 66.7
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Difficulty Collecting data
Solved 9
Median time 10m 31s
Avg steps 137.8
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Difficulty Collecting data
Solved 9
Median time 15m 47s
Avg steps 100.0
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Difficulty Collecting data
Solved 9
Median time 27m 10s
Avg steps 100.2
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Difficulty Collecting data
Solved 9
Median time 20m 24s
Avg steps 88.3
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Difficulty Collecting data
Solved 9
Median time 16m 30s
Avg steps 114.3
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Difficulty Collecting data
Solved 9
Median time 20m 59s
Avg steps 104.9
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Difficulty Collecting data
Solved 8
Median time 18m 09s
Avg steps 142.5
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Difficulty Collecting data
Solved 8
Median time 44m 34s
Avg steps 172.6
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Difficulty Collecting data
Solved 8
Median time 37m 49s
Avg steps 186.5
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Difficulty Collecting data
Solved 8
Median time 41m 48s
Avg steps 292.6
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Difficulty Collecting data
Solved 8
Median time 38m 50s
Avg steps 170.9
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Difficulty Collecting data
Solved 8
Median time 24m 29s
Avg steps 101.3
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Difficulty Collecting data
Solved 8
Median time 12m 33s
Avg steps 70.6
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Difficulty Collecting data
Solved 8
Median time 9m 11s
Avg steps 106.4
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Difficulty Collecting data
Solved 8
Median time 70m 44s
Avg steps 198.1
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Difficulty Collecting data
Solved 8
Median time 32m 39s
Avg steps 130.6
Play
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.