Tsuidoku Daily Challenge #51

August 28, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Squall4:375
#2Yash78934:462
#3waly7:170
#4Fire Pronoobs (Flame)9:042
#5Magic of Colors and Numbers9:080
#6moon_Priya10:351
#7Jeca10:416
#8Nguyễn Hoàng Đặng10:574
#9nine_Ali14:571
#10Priya76223:511
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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