Here is my problem
|3 | 2
6| |4 3
| 2| 7
7 |243|169
412| |738
693|817|254
6 |5 |
1 7| |69
8 | 9|
any more clues?
+-------+-------+-------+
| . . . | 3 . . | . 2 . |
| . . 6 | . . . | 4 . 3 |
| . . . | . . 2 | . 7 . |
+-------+-------+-------+
| . 7 . | 2 4 3 | 1 6 9 |
| 4 1 2 | . . . | 7 3 8 |
| 6 9 3 | 8 1 7 | 2 5 4 |
+-------+-------+-------+
| . 6 . | 5 . . | . . . |
| 1 . 7 | x . . | 6 9 . |
| . 8 . | . . 9 | . . . |
+-------+-------+-------+