Very difficult sudoku #2095
| 7 | 1 | 9 | 4 | |||||
| 5 | 7 | 3 | ||||||
| 1 | 7 | 5 | ||||||
| 8 | 6 | 9 | 7 | 2 | ||||
| 1 | 9 | 5 | 7 | 4 | ||||
| 9 | ||||||||
| 9 | 6 | |||||||
| 2 | 4 | 1 | 8 | |||||
| 9 | 1 |
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