A slightly different processing of UR(28)r24c13, and a different finish:
- Code: Select all
+-----------------------+-------------------------+--------------------------+
| 1 579 a48-59 | 5689 56789 2 | 4689 469 3 |
| *2378 379 *2389 | 3689 4 367 | 2689 1 5 |
| a248-3 359 6 | 13589 3589 13 | 7 249 49 |
+-----------------------+-------------------------+--------------------------+
| *28 1369 *28 | 7 356 1346 | 14569 34569 1469 |
| 37 4 139 | 1356 356 8 | 1569 35679 2 |
| 5 1367 13 | 1346 2 9 | 146 8 1467 |
+-----------------------+-------------------------+--------------------------+
| 46 15 7 | 289 89 46 | 3 259 19 |
| 346 8 134 | 23469 3679 5 | 12469 24679 14679 |
| 9 2 345 | 346 1 3467 | 456 4567 8 |
+-----------------------+-------------------------+--------------------------+
1. UR(28)r24c13 using externals (in b1):
(48)b1p37 == (24)b1p37 => -59 r1c3, -3r3c1; lcls, 12 placements
- Code: Select all
+------------------+-----------------------+--------------------+
| 1 579 4 | 589 579 2 | 89 6 3 |
| 37 379 28 | 3689 4 367 | 289 1 5 |
| 28 359 6 | 13589 359 13 | 7 29 4 |
+------------------+-----------------------+--------------------+
| 28 36 28 | 7 35 134 | 159 349 16 |
| 37 4 9 | 156 56 8 | 15 37 2 |
| 5 367 1 | 34 2 9 | 46 8 67 |
+------------------+-----------------------+--------------------+
| 46 1 7 | 2 8 46 | 3 5 9 |
| 46 8 3 | 469 679 5 | 12 247 167 |
| 9 2 5 | 346 1 3467 | 46 47 8 |
+------------------+-----------------------+--------------------+
2. (4)r9c7 = r6c7 - (4=3)r6c4 - (3=64)r9c47 => -4 r9c68; lcls, 13 placements
- Code: Select all
+-----------------+------------------+------------------+
| 1 7 4 | 58 59 2 | 89 6 3 |
| 3 9 28 | 6 4 7 | 28 1 5 |
| 28 5 6 | 18 39 13 | 7 29 4 |
+-----------------+------------------+------------------+
| 28 36 28 | 7 a35 b14+3 | c59+1 49 16 |
| 7 4 9 | 1-5 6 8 | d15 3 2 |
| 5 36 1 | 34 2 9 | 46 8 7 |
+-----------------+------------------+------------------+
| 46 1 7 | 2 8 46 | 3 5 9 |
| 46 8 3 | 9 7 5 | 12 24 16 |
| 9 2 5 | 34 1 36 | 46 7 8 |
+-----------------+------------------+------------------+
3. BUG+2: (5=3)r4c5 - (3)r4c6 == (1)r4c7 - (1=5)r5c7 => -5 r5c4; ste