Doubled Pawns and the Philidor Draw
White to play and draw, after Philidor
PlayYou are two pawns up, but they are doubled on the d-file and the black king is planted right in front of them. When the weaker side's king gets in front of the pawns, the draw is usually easy, and the technique that holds it is Philidor's.
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Doubled Pawns and the Philidor Draw
White to play and draw · Hold the draw against perfect play
Waking the engine…
The theory
Material counts, but structure counts more. Two doubled pawns are worth far less than the number suggests.
One file, one threat. Doubled pawns cannot open a second front, so the defending rook is never pulled in two directions.
Philidor holds it. With his king in front of the pawns, the defender puts his rook on the sixth rank to keep your king out. When the pawn finally advances to the sixth, the rook drops to the first rank and checks from behind, from the long side. Your king finds no shelter and the pawn goes no further.
The exception. The draw is easy EXCEPT when the defending rook is tied to its back rank by mate threats. Then it cannot take the Philidor post, and the pawns do win.
Keep going
Connected Pawns Escorted by the Rook Alone
White to play and win
Kling and Horwitz: The King Blockades
White to play and draw
The King March and the Zugzwang Squares
White to play and win
All 83 rook endgames positionsFollow the full curriculum (free)