Mate In 3 Puzzle (Rated 1219): Force Mate in 3 — Endgame Pattern
This chess endgame puzzle is a classic forcing sequence where the attacker uses checks to drag the enemy king into a mating net. The key idea is not material gain, but coordination: one piece creates the first threat, another piece is forced to capture, and the final blow lands on a vulnerable king square. In practical classical chess, these patterns often appear when the defending king has limited escape squares and the back rank or diagonal is overloaded.