Tsuidoku Daily Challenge #109

October 25, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Anjy3:220
#267673:241
#3aaaah3:320
#4Haniaa4:022
#5bennypezzy4:041
#6yellow_orion124:190
#7Polin4:272
#8Deja4:490
#9bloome5:073
#10ninana5:300
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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