Perpetual Check Puzzle (Rated 1500): Repetition Trap — Chess Endgame
This chess endgame is a classic example of using king activity and task-repetition to steer the game toward a favorable result. White has the extra passed pawn, but the position is still a theoretical draw, so precision matters more than material count. The key idea is to keep the black king tied down, improve the white king, and create repeated threats that force the defender into passive squares before the pawn can advance safely.