Learn How to Anastasia Mate: King Safety
This puzzle is a classic Anastasia mate pattern in a middlegame setting, where the attacking side uses a rook and queen to trap the enemy king on the edge of the board. The key idea is that the king’s escape squares are restricted, so a forcing check can drive it into a mating net. Even with a large material lead, careless defense can fail immediately when the back rank and the h-file are vulnerable.