Can anyone suggest what the next step might be to cracking this bad boy?
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| 12 278 17 | 37 389 6 | 458 489 459 |
| 5 3 6 | 2 89 4 | 18 7 19 |
| 49 4789 79 | 5 1 78 | 2 6 3 |
|---------------+--------------+--------------------|
| 6 5 39 | 13 4 129 | 7 *123 8 |
| 349 49 2 | 8 7 159 | 1356 *13 156 |
| 7 1 8 | 6 35 25 | 9 4-23 245 |
|---------------+--------------+--------------------|
| 129 279 5 | 147 6 3 | 148 489-12 12479 |
| 8 679 1379 | 147 2 17 | 1346 5 14679 |
| 123 267 4 | 9 58 1578 | 136 *123 1267 |
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