Rook Endgames: The Lucena Position

Rook endgames are the most common endgame in real chess, and the LUCENA POSITION is their holy grail: your pawn on the 7th, your king stuck in front of it, their rook ready to check you sideways forever.

The winning trick has a name — 'BUILDING A BRIDGE.' Your rook becomes an umbrella against the rain of checks. Learn it once, convert this endgame forever.