- Code: Select all
+-------+-------+-------+
| . . . | 9 . 2 | . 4 . |
| 7 . 2 | . 4 . | . 6 1 |
| . . . | 1 . . | . . . |
+-------+-------+-------+
| . 8 9 | 3 7 . | . . . |
| . . . | . . 1 | . . . |
| . 7 . | . . . | . . 8 |
+-------+-------+-------+
| 1 . . | . 9 . | 2 . 6 |
| 6 . 8 | . . . | . . . |
| 5 9 . | . . . | 3 . . |
+-------+-------+-------+
...9.2.4.7.2.4..61...1......8937.........1....7......81...9.2.66.8......59....3..
(Source: Sudoku Architect)