Tsuidoku Daily Challenge #27

August 4, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1waly6:580
#2Mongkol Meesuk8:552
#3Jeca10:102
#4Aleah Chapman12:570
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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