Tsuidoku Daily Challenge #38

August 15, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall4:436
#2waly5:180
#3Mongkol Meesuk6:470
#4Jeca7:405
#5JEDDO13:321
#6notafish23:442
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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