-------------------------------------
|         3 | 5       2 | 6         |
|   +   +   +   +   +   +   +   +   |
| 2         |         3 |           |
|   +   +   +   +   +   +   +   +   |
|     4     |           |           |
|---+---+---+---+---+---+---+---+---|
|     5     |           | 9         |
|   +   +   +   +   +   +   +   +   |
|           | 8   6     |           |
|   +   +   +   +   +   +   +   +   |
|     3   8 |         7 |         1 |
|---+---+---+---+---+---+---+---+---|
|         4 |     9     |         2 |
|   +   +   +   +   +   +   +   +   |
|           |           |     8     |
|   +   +   +   +   +   +   +   +   |
| 6       2 |         4 |     3     |
-------------------------------------

          DIFFICULTY: 0.00