- Code: Select all
+-------+-------+-------+
| . 6 . | . . 2 | . . . |
| . . . | . 1 . | . 6 . |
| 8 7 . | . 5 6 | 1 . . |
+-------+-------+-------+
| 2 . . | . . . | 6 . 4 |
| . . . | . . . | 9 . . |
| . . . | 1 . 4 | . 5 . |
+-------+-------+-------+
| 1 2 7 | . . . | . . 8 |
| 5 4 . | . . . | . . . |
| . . 8 | 3 . . | . . 2 |
+-------+-------+-------+
.6...2.......1..6.87..561..2.....6.4......9.....1.4.5.127.....854.........83....2
(Source: Sudoku Architect)

