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

          DIFFICULTY: 0.00