Tsuidoku Daily Challenge #16

July 24, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Mongkol Meesuk5:330
#2waly7:191
#3Tristan9:521
#4Magic of Colors and Numbers11:060
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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