Very difficult sudoku #3566
| 1 | 4 | 5 | ||||||
| 5 | 6 | 9 | 8 | |||||
| 9 | 2 | 3 | ||||||
| 8 | 9 | |||||||
| 1 | 7 | |||||||
| 4 | 9 | 3 | ||||||
| 3 | 1 | |||||||
| 6 | 7 | 1 | ||||||
| 1 | 7 | 3 | 9 | 4 |
Puzzle Completed
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