September 13, 2026 · one worldwide grid (UTC) · medium · digits × colors
| Rank | Player | Time | Errors |
|---|---|---|---|
| #1 | waly | 6:59 | 2 |
| #2 | Mongkol Meesuk | 7:51 | 1 |
| #3 | Squall | 8:27 | 0 |
| #4 | Arthur SIDE | 9:51 | 1 |
| #5 | madhusudhan yadav | 11:24 | 0 |
| #6 | CalciteCow | 12:39 | 1 |
| #7 | Tulasi Prasad | 13:56 | 7 |
| #8 | Brijesh Deodhar | 14:55 | 3 |
| #9 | Hung Truong | 16:48 | 3 |
| #10 | Nhat Tran | 17:05 | 2 |
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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