Can anyone help please - I simply cannot find any doubles or triples to get me going!
Thanks in advance
+-----------------------+---------------------+---------------------+
| 678 9 478 | 478 1 2 | 5 46 3 |
| 5 24678 1 | 3 78 48 | 678 9 24678 |
| 2378 23478 23478 | 5 9 6 | 78 24 1 |
+-----------------------+---------------------+----------------------+
| 12367 23467 9 | 467 367 34 | 1367 8 5 |
| 3678 34678 3478 | 2 5 1 | 9 346 467 |
| 1367 5 347 | 4678 3678 9 |2 1346 467 |
+-----------------------+---------------------+----------------------+
| 4 2378 23578 | 9 2368 38 | 1368 12356 268 |
| 238 1 2358 | 68 2368 7 | 4 2356 9 |
| 9 238 6 | 1 4 5 | 38 7 28 |
+-----------------------+---------------------+----------------------+