Tsuidoku Daily Challenge #78

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

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78933:020
#2TilakSN4:382
#3Mateusz D5:441
#4waly6:411
#5Brijesh7:231
#6Squall7:391
#7GreyWalker7:390
#8MaxTata8:212
#9jany8:300
#10ninana9:042
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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