September 7, 2026 · one worldwide grid (UTC) · medium · digits × colors
| Rank | Player | Time | Errors |
|---|---|---|---|
| #1 | Squall | 4:24 | 7 |
| #2 | Yash7893 | 4:24 | 1 |
| #3 | Liew Fookkong | 16:46 | 0 |
| #4 | Phuong772 | 17:18 | 0 |
| #5 | Omar480 | 18:55 | 0 |
| #6 | Brandon533 | 19:17 | 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