Tsuidoku Daily Challenge #63

September 9, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78934:310
#2waly6:521
#3Mongkol Meesuk8:032
#4Omar4808:301
#5Squall9:085
#6moon_Priya11:422
#7Liew Fookkong20:072
#8Minh.panda21:471
#9william cheah108:176
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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