Tsuidoku Daily Challenge #54

August 31, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall3:383
#2Yash78933:500
#3jellyace4:572
#4waly5:150
#5Mongkol Meesuk6:142
#6nine_Ali10:540
#7Magic of Colors and Numbers11:030
#8Brandon53312:280
#9axel epifanie18:214
#10Quang26519:153
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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