July 28, 2026 · one worldwide grid (UTC) · medium · digits × colors
| Rank | Player | Time | Errors |
|---|---|---|---|
| #1 | waly | 6:45 | 0 |
| #2 | Jeca | 9:33 | 7 |
| #3 | Magic of Colors and Numbers | 11:26 | 0 |
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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