Very difficult sudoku #1645
| 6 | 5 | 2 | 4 | |||||
| 8 | 2 | 7 | 1 | |||||
| 5 | ||||||||
| 4 | 6 | 3 | ||||||
| 1 | 4 | 8 | ||||||
| 9 | 5 | 3 | 2 | |||||
| 7 | 4 | 1 | ||||||
| 2 | 9 | |||||||
| 8 | 7 |
Puzzle Completed
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