Rook Endgame: Doubled Pawns and Philidor's Defence
White to play and draw, after Philidor
PlayYou are two pawns up, but they are doubled on the d-file and his king stands in front of them on d8. With the defending king in front of the pawns, this is usually an easy draw. Watch how he holds it: his rook first guards the sixth rank, as in Philidor's defence, then goes behind your pawns to check from the rear. The rule to remember: doubled pawns do not win against a king in front of them, unless his rook is stuck on the back rank by mate threats.
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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
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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, then the switch. With his king in front of the pawns, the defender puts his rook on the sixth rank to keep your king out. The second pawn lets you offer a rook trade to break that stand, so he switches: the rook drops behind the pawns, ready to eat the rear one, and when the front pawn reaches the sixth it checks from the rear. 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
The Gap Between the f- and h-Pawns
White to play and draw
Defending Against Split Kingside Pawns
Black to play and draw
Giving Up the h-Pawn to Push the f-Pawn
White to play and draw
All 96 rook endgames positionsFollow the full curriculum (free)