Tsuidoku Daily Challenge #36

August 13, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall6:417
#2Mongkol Meesuk6:480
#3waly7:102
#4joris42997:120
#5Magic of Colors and Numbers14:410
#6Pisnuchai Imam44:562
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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