Suirodoku Daily Challenge #8

July 16, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1waly7:170
#2Player11:340
Play today’s Daily Challenge →
← #7#9 →

Suirodoku 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