Tsuidoku Daily Challenge #65

September 11, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Yash78934:102
#2waly5:511
#3Squall6:282
#4Arnomi8:271
#5Nghia Nguyen8:313
#6jake_459:231
#7MisteRibi11:040
#8Liew Fookkong13:251
#9Brandon53316:050
#10Vinh Phu16:293
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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