Very difficult sudoku #3678
| 3 | 4 | 1 | ||||||
| 5 | 6 | 4 | ||||||
| 7 | 2 | |||||||
| 5 | 9 | 2 | 4 | |||||
| 8 | 7 | |||||||
| 2 | 9 | 8 | 6 | |||||
| 7 | 5 | |||||||
| 9 | 5 | 8 | ||||||
| 5 | 1 | 9 |
Puzzle Completed
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