Tsuidoku Daily Challenge #53

August 30, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall4:106
#2Yash78934:161
#3waly5:521
#4Mongkol Meesuk6:410
#5Brandon53313:090
#6axel epifanie16:042
#7Beatriz99318:050
#8Liew Fookkong24:190
#9Priya76241:222
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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