Very difficult sudoku #671
| 7 | 5 | 1 | 9 | |||||
| 6 | 8 | 1 | ||||||
| 3 | 7 | |||||||
| 1 | 8 | 6 | ||||||
| 8 | 4 | 3 | ||||||
| 7 | 9 | 5 | ||||||
| 2 | 8 | |||||||
| 3 | 2 | 4 | ||||||
| 4 | 8 | 6 | 5 |
Puzzle Completed
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