Very difficult sudoku #253
| 5 | 1 | |||||||
| 6 | 3 | |||||||
| 7 | 3 | 8 | ||||||
| 2 | 1 | 6 | 5 | 4 | ||||
| 7 | 3 | 4 | 2 | |||||
| 5 | 2 | 1 | ||||||
| 4 | 5 | 7 | ||||||
| 4 | 5 | 9 | ||||||
| 5 | 9 | 7 | 1 |
Puzzle Completed
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