-------------
| 18|   |7  |
| 6 | 5 |94 |
|   | 2 |   |
-------------
|8  |7  | 2 |
|  4|  6|   |
|65 |  9|   |
-------------
|5  | 3 |8  |
|1 2|8 4| 7 |
|   |   |26 |
-------------
