Very difficult sudoku #638
| 5 | 7 | 4 | 8 | 1 | ||||
| 9 | 6 | 4 | 5 | |||||
| 8 | 1 | 6 | ||||||
| 3 | 4 | 2 | ||||||
| 6 | 2 | 1 | ||||||
| 4 | 9 | 8 | 2 | |||||
| 5 | 6 | 9 | 8 | 1 |
Puzzle Completed
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