- Code: Select all
+-------+-------+-------+
| . . 8 | . . . | 9 . 3 |
| . 2 . | . 7 . | . 6 . |
| 1 . 6 | . . . | . . 2 |
+-------+-------+-------+
| . . 4 | . . 3 | 7 . . |
| . . . | . 1 . | . . 8 |
| . . . | . . 9 | . 5 . |
+-------+-------+-------+
| 6 . 1 | . . . | 5 . 9 |
| . 4 . | . . . | . 2 . |
| . . 9 | 6 . 8 | . . . |
+-------+-------+-------+