White to move
| Date: | 1957 |
| White: | Prucha |
| Black: | Kubanek |
| Combination strength: | 3 |
| Game section | Middle game |
| Decisive material advantage | - |
| Mate combination | The weakness of the back rank |
| Date: | 1957 |
| White: | Prucha |
| Black: | Kubanek |
| Combination strength: | 3 |
| Game section | Middle game |
| Decisive material advantage | - |
| Mate combination | The weakness of the back rank |