Very difficult sudoku #3405
| 7 | 9 | |||||||
| 8 | 5 | |||||||
| 2 | 4 | |||||||
| 9 | 3 | |||||||
| 1 | 3 | 2 | 8 | |||||
| 5 | 7 | 6 | 1 | |||||
| 9 | 4 | |||||||
| 2 | 1 | |||||||
| 7 | 1 | 8 |
Puzzle Completed
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