Tsuidoku Daily Challenge #35

August 12, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1waly6:411
#2Squall7:277
#3Mongkol Meesuk8:460
#4Arnomi10:211
#5Jeca11:547
Play today’s Daily Challenge →

Get the free app — your grid, colors & streak, synced.

App StoreGoogle Play

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