The Philidor position is the standard drawing method in rook-and-pawn-versus-rook: the defender keeps their king in front of the pawn and their rook on the third rank, then checks from behind once the pawn advances.
It’s the defender’s best friend. The defending king sits in front of the enemy pawn, and the rook patrols its own third rank — the rank the attacking king needs to reach. As long as the rook holds that rank, the enemy king can’t make progress.
When the attacker finally pushes the pawn up to that third rank to break the blockade, the defender swings the rook to the far end of the board and checks the king from behind. With nowhere to hide, the attacker can’t escape the checks, and it’s a draw.
If you’re a pawn down in a rook ending, aiming for the Philidor is often how you save the game — it’s the mirror image of the winning Lucena.
Because the defending rook sits on its own third rank to fence the attacking king out of that rank. The defender only leaves it — going to the back to check from behind — once the pawn advances that far.
If you’re defending a pawn down, head for the Philidor draw. If you’re the one with the extra pawn, steer toward the winning Lucena.
BetterChess is a practice tool — we make no guarantee you'll reach 1800 or any rating. Definitions are standard chess terminology; every diagram position is checked legal with the same engine the board runs.