Mate In 3 Puzzle (Rated 1365): Mate in 3 — Back Rank Mate

This chess endgame shows how a forcing check can convert a material edge into a mating net. The key idea is to restrict the enemy king’s escape squares while using a rook and bishop to coordinate on the same diagonal and file. In classical chess, these patterns often appear when a pinned pawn or overloaded defender cannot help. Even with extra material, the winning side must look for direct threats before simplifying.