Used same 4 cells with strong/weak links for 9 exchanged:
- Code: Select all
+----------------------+----------------------+----------------------+
| 12347 13467 1267 | 238 9 278 | 2678 5 678 |
| 8 367 2679 | 1 4 5 | 2679 239 679 |
|#2379 37 5 | 238 6 278 | 1 #2389 4 |
+----------------------+----------------------+----------------------+
| 17 9 3 | 48 5 148 | 78 6 2 |
| 6 8 4 | 7 2 9 | 5 1 3 |
| 127 5 127 | 68 3 168 | 789 4 789 |
+----------------------+----------------------+----------------------+
| 4579 67-4 8 |a246 1 a246 | 3 #29 569 |
|#49 2 69 | 5 8 3 | 469 7 1 |
| 1345 1346 16 | 9 7 246 | 2468 28 568 |
+----------------------+----------------------+----------------------+
(4=9)r8c1 - r3c1 = r3c8 - (9=2)r7c8 - (2=48)r7c46 => -4r7c2
triple 367r237c2, singles, lc
- Code: Select all
+-------------------+-------------------+-------------------+
| 1247 14 127 | 3 9 278 | 2678 5 678 |
| 8 6 279 | 1 4 5 | 279 3 79 |
|#279 3 5 | 28 6 278 | 1 #289 4 |
+-------------------+-------------------+-------------------+
| 17 9 3 | 48 5 148 | 78 6 2 |
| 6 8 4 | 7 2 9 | 5 1 3 |
| 127 5 127 | 68 3 168 | 789 4 789 |
+-------------------+-------------------+-------------------+
| 5 7 8 | 246 1 246 | 3 #29 b69 |
|#49 2 a69 | 5 8 3 | 4-6 7 1 |
| 3 14 16 | 9 7 26 | 2468 28 5 |
+-------------------+-------------------+-------------------+
Extended skyscraper
(6=9)r8c3 - 9r8c1 = r3c1 - r3c8 = 9r7c8 - (9=6)r7c9 => -6r8c7, stte
@Steve: please add a * or something to the link (2|8=9)r3c8 to indicate, that 3r3c8 is handled later.