Before any advanced moves (nothing more than naked pairs), one gets to
Code: Select all
.------------------.------------------.------------------.
| 4 8 1 | 35 37 57 | 2 9 6 |
| 5 3 9 | 468 28 246 | 7 48 1 |
| 7 6 2 | 489 189 14 | 48 5 3 |
:------------------+------------------+------------------:
| 18 457* 347& | 2 6 9 | 1348 1478& 457 |
| 89 25 67* | 1 4 3 | 89 67* 25 |
| 19 24 36 | 7 5 8 | 139 16 24 |
:------------------+------------------+------------------:
| 6 9 47 | 45 127 12457| 14 3 8 |
| 2 47* 8 | 346 137& 1467&| 5 147* 9 |
| 3 1 5 | 89 89 47- | 6 2 47 |
'------------------'------------------'------------------'