Tsuidoku Daily Challenge #41

August 18, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall4:557
#2Mongkol Meesuk8:520
#3Rich Torcelino9:391
#4Jeca10:384
#5Jordan11:552
#6waly12:130
#7Phuong77212:460
#8Brandon53312:533
#9Omar48013:273
#10Diya69315:033
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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