Suirodoku Daily Challenge #7

July 15, 2026 · one worldwide grid (UTC) · medium · digits × colors

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

Top 10 of the day

RankPlayerTimeErrors
#1waly6:301
#2Player11:300
Play today’s Daily Challenge →
← #6#8 →

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