Tsuidoku Daily Challenge #88

October 4, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1TilakSN3:210
#2teo3:250
#3pocok3:481
#4yellow_orion124:220
#5Jesuislena4:310
#6naty_pepi4:450
#7bloome4:492
#8Anj-Lynn5:172
#9Silentiumm5:180
#10yxsha515:383
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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