Tsuidoku Daily Challenge #77

September 23, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78933:521
#2TilakSN5:240
#3Mateusz D6:483
#4Lockdalf7:011
#5二分の七次元7:142
#6idris khan7:322
#7waly7:561
#8Števko Tulipán8:104
#9Rhemx8:110
#10Brijesh Deodhar8:503
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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