yzfwsf wrote:Another example:
- Code: Select all
.---------------------------------.---------------------------------.---------------------------------.
| 6 1 39 | 348 7 89 | 2 345 45 |
| 5 7 39 | 2 14 19 | 134 8 6 |
| 8 2 4 | 5 13 6 | 139 139 7 |
:---------------------------------+---------------------------------+---------------------------------:
| 7 45 156 | 9 14568 2 | 1458 145 3 |
| 2 3459 56 | 346 134568 15 | 14589 7 4589 |
| 1349 3459 8 | 34 1345 7 | 6 1459 2 |
:---------------------------------+---------------------------------+---------------------------------:
| 149 4589 15 | 168 56 3 | 7 2 4589 |
| 139 3589 7 | 18 2 4 | 3589 6 589 |
| 34 6 2 | 7 9 58 | 3458 345 1 |
'---------------------------------'---------------------------------'---------------------------------'
These eliminations can be found like this:
-(56)r5c46->(56)r456c5 => -(56)r7c5 is not possible => (56)r5c346 => -(5)r5c3579, -6r5c5
-(5)r5c3->5r5c6->5r7c5 => -5r7c3.
That's what I call the anti-tracks technique...
Robert