Tsuidoku Daily Challenge #57

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

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall4:575
#2Yash78935:024
#3waly7:320
#4Mongkol Meesuk8:392
#5Phuong77214:082
#6poppy8715:493
#7nine_Ali18:231
#8Liew Fookkong31:421
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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