-------------
| 18|49 |   |
| 6 | 5 | 4 |
| 45| 2 |   |
-------------
|839|745|   |
| 24|  6|   |
|651|2 9|4  |
-------------
|5 6|932|  4|
|1 2|8 4|   |
|4  |5  |   |
-------------
