Tsuidoku Daily Challenge #69

September 15, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78933:010
#2waly5:590
#3Mongkol Meesuk6:561
#4Squall9:261
#5Nidal Shaheed10:290
#6Brijesh Deodhar10:523
#7madhusudhan yadav11:192
#8Arnomi11:560
#9Minh.panda12:353
#10Phước Khanh Trần12:360
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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