Tsuidoku Daily Challenge #56

September 2, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78933:552
#2Squall3:567
#3waly6:060
#4Mongkol Meesuk6:160
#5Neha_brain10:170
#6axel epifanie11:272
#7Phuong77216:022
#8Rina87019:380
#9Liew Fookkong30:200
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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