.. | . |
2 | . | 5 | 8 | 4 | .. | 7 |
. | . | 5 | 2 | 4 | . | 3 | 6 | . |
9 | . | 8 | . | . | 7 | 1 | . | . |
. | . | . | 5 | . | . | . | 3 | . |
5 | 1 | 7 | . | 3 | 4 | . | 2 | . |
2 | . | 4 | 9 | 7 | . | . | . | 5 |
6 | 8 | 1 | . | 9 | 2 | 5 | . | . |
. | 2 | . | 7 | . | . | 9 | . | . |
. | 5 | . | . | 8 | . | 2 | 4 | 1 |
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