Tsuidoku Daily Challenge #73

September 19, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1Nidal Shaheed4:291
#2Yash78935:285
#3Mongkol Meesuk6:240
#4idris khan6:371
#5Mateusz D6:442
#6Squall7:060
#7Brijesh Deodhar7:340
#8waly7:360
#9Kiên Nguyễn7:381
#10Lockdalf7:461
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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