Very difficult sudoku #704
| 6 | 7 | 4 | 1 | |||||
| 4 | 9 | 8 | 1 | 5 | 6 | |||
| 9 | 5 | |||||||
| 7 | 1 | |||||||
| 1 | 2 | 4 | 9 | |||||
| 3 | 2 | |||||||
| 8 | ||||||||
| 7 | 6 | 1 | 9 | 5 | ||||
| 4 | 1 | 3 | 6 |
Puzzle Completed
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