Blocking Escape Squares Puzzle (Rated 1500): Spot Mate in 3 — Queen Trap
This chess puzzle is a classic king-safety finish where the attacking queen creates a mating net around the exposed king. The key idea is a forcing check that drags the defender into a worse square, followed by a rook block that removes the last escape route. In practical classical chess, these patterns often appear when the enemy king has a weakened pawn shield and your pieces already control the critical dark squares.