Very difficult sudoku #1680
| 8 | 6 | 2 | ||||||
| 5 | 4 | 9 | ||||||
| 4 | 7 | |||||||
| 7 | ||||||||
| 9 | 7 | 8 | ||||||
| 7 | 2 | 8 | 1 | |||||
| 4 | 7 | 3 | 6 | |||||
| 9 | 3 | 7 | 1 | |||||
| 2 | 8 | 3 |
Puzzle Completed
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