Two moves.
1.
- Code: Select all
*-------------------------------------------------------*
| 4 679 3 | 5 17-9 8 | 2 169 e69 |
| 58 56789 6789 | 14679 2 4679 | 1368 13469 3689 |
| 1 2 689 | 469 3 469 | 568 4569 7 |
|---------------+-------------------+-------------------|
| 9 378 478 | 1468 158 3456 | 3567 3567 2 |
| 2 1 5 | 679 a79 3679 | 4 8 36-9 |
| 6 378 478 | 2489 589 23459 | 357 3579 1 |
|---------------+-------------------+-------------------|
| 7 589 189 | 289 6 259 | 138 123 4 |
| 3 5689 1689 | 2789 4 2579 | 178 127 58 |
| 58 4 2 | 3 b578 1 | 9 c67 d568 |
*-------------------------------------------------------*
(9=7) r5c5 - r9c5 = (7-6) r9c8 = r9c9 - (6=9) r1c9 => - 9 r1c5, r5c9, some basics
2.
- Code: Select all
*----------------------------------------------------*
| 4 679 3 | 5 a17 8 | 2 b16 69 |
| 58 56789 6789 | 14679 2 4679 | 1368 1346 3689 |
| 1 2 689 | 469 3 469 | 568 456 7 |
|---------------+------------------+-----------------|
| 9 378 478 | 1468 158 3456 | 3567 3567 2 |
| 2 1 5 | 67 9 367 | 4 8 36 |
| 6 378 478 | 248 58 2345 | 357 9 1 |
|---------------+------------------+-----------------|
| 7 589 189 | 289 6 259 | 138 123 4 |
| 3 5689 1689 | 2789 4 2579 | 178 127 58 |
| 58 4 2 | 3 58-7 1 | 9 c67 568 |
*----------------------------------------------------*
XY Wing : (7=1) r1c5 - (1=6) r1c8 - (6=7) r9c8 => - 7 r9c5; stte
Leren