Suirodoku Daily Challenge #9

July 17, 2026 · one worldwide grid (UTC) · medium · digits × colors

2
8
6
9
7
1
1
9
7
5
1
8
6
8
3
9
7
6
7
8
4
3
9
2
8
3
1
7
3
4
7
8
5
8
2
5

Top 10 of the day

RankPlayerTimeErrors
#1Player12:310
#2waly12:343
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Suirodoku is a free online color sudoku: every row, column and region holds the digits 1-9 AND all 9 colors, and each digit-color pair appears exactly once. The math behind it · Daily hub