eleven wrote: You should add some other constraints to make it a challenge for the experts.
could be the minimum number of clues...
- Code: Select all
+-------+-------+-------+
| . . . | . . . | . 1 . |
| . 2 . | . . . | . 3 4 |
| . 5 6 | . . . | . . . |
+-------+-------+-------+
| . . . | . . 5 | . . . |
| . . . | . 7 4 | . . . |
| . . 3 | . . . | . 2 8 |
+-------+-------+-------+
| . . 1 | 8 . . | . 6 . |
| 4 . . | . . . | . . . |
| 5 8 . | . . . | . . . |
+-------+-------+-------+
JPF
