This is the first time I've found it for myself in the the real world...
- Code: Select all
.-----------------.------------------.------------------.
| 9 13 2 | 5 6 38 | 48 7 1348 |
| 4 8 67 | 137 127 237 | 9 2356 35 |
| 167 137 5 | 9 4 2378 | 268 236 138 |
:-----------------+------------------+------------------:
| 5678 4 678 | 68 279 25679 | 1 235 358 |
| 2 9 178 | 148 3 B57 | 478 *45 6 |
| 15678 57 3 | 1468 127 2567 | 2478 9 458 |
:-----------------+------------------+------------------:
| 78 2 48 | A67 5 1 | 3 X46 9 |
| 157 157 147 | 367 79 369-7 | 46 8 2 |
| 3 6 9 | 2 8 4 | 5 1 7 |
'-----------------'------------------'------------------'
A=r7c4, B=r5c6, X=r7c8
A=6->X=4
B=5->X=6
=> A or B is 7, r8c6<>7
