Three steps (rather than a complex kraken):
- Code: Select all
+------------------------+----------------------+----------------------+
| 79 8 4 | 3 a19-6 b169 | 57 2 56 |
| 6 239 5 | 289 D489 7 | E48 38 1 |
| 237 237 1 | 28 5 C46 | 9 3678 3468 |
+------------------------+----------------------+----------------------+
| 3489 A3459 89 | 6 489 B459 | 2 1 7 |
| 1 246-5 268 | F58 7 3 | F458 9 4568 |
| 4789 45679 6789 | 1589 1489 2 | 3 568 4568 |
+------------------------+----------------------+----------------------+
| 2479 24679 2679 | d579 d369 8 | 1 d357 d35 |
| 78 167 3 | 157 2 156 | 578 4 9 |
| 5 179 789 | 4 139 c19 | 6 378 2 |
+------------------------+----------------------+----------------------+
1. (1)r1c5 = r1c6 - (1=9)r9c6 - (9=3576)r7c4589 => -6 r1c5;
2. (5)r4c2 = (5-4)r4c6 = r3c6 - r2c5 = r2c7 - (4=85)r5c47 => -5 r5c2; 5 placements
- Code: Select all
+-----------------------+---------------------+----------------------+
| 79 8 4 | 3 19 16 | 57 2 56 |
| 6 39-2 5 | 289 489 7 | 48 38 1 |
| d237 37-2 1 | 28 5 46 | 9 3678 3468 |
+-----------------------+---------------------+----------------------+
| 3489 3459 89 | 6 489 45 | 2 1 7 |
| 1 a24 268 | 58 7 3 | 458 9 4568 |
| 4789 4579 6789 | 1589 1489 2 | 3 568 4568 |
+-----------------------+---------------------+----------------------+
| c2479 b2479 279 | 57 6 8 | 1 357 35 |
| 78 6 3 | 157 2 15 | 578 4 9 |
| 5 1 78 | 4 3 9 | 6 78 2 |
+-----------------------+---------------------+----------------------+
3. (2=4)r5c2 - r7c2 = (4-2)r7c1 = (2)r3c1 => -2 r23c2; ste