Tsuidoku Daily Challenge #26

August 3, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1waly7:400
#2Mongkol Meesuk8:300
#3Jeca11:283
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Tsuidoku 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