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Rook endgame

The Philidor Position

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The Philidor position is a drawing reference in rook and pawn versus rook. The defending king is in front of the pawn, the attacking king has not reached the sixth rank, and the defending rook can hold its third rank. The rook denies the king entry until the pawn advances; only then does it switch to checks from behind.

On this page
  1. The third-rank defence
  2. The switch — check from behind
  3. Why it works
  4. Try to hold the draw
  5. Keep learning

The third-rank defence

Black’s rook waits along the sixth rank, Black’s third rank when counted from that side. It bars White’s king on e5 from d6, e6 and f6 while Black’s king occupies the promotion square. The rook must also stay out of capture and avoid needless checks that drive the king to a better square. The diagram is a Syzygy draw with Black to move; 1...Rb6 is one safe waiting move.

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Black to move draws. The rook on a6 controls the sixth rank, and neither rook attacks the other.

The switch — check from behind

The defence has two phases. While the pawn remains behind the fifth-rank king, the rook keeps that king off the sixth. White must eventually move the king aside and advance the pawn. Once the pawn reaches e6, it interrupts the rook’s rank control; that is the signal to move the rook to the rear and give long checks. Calculate the checking distance before moving: a rear-check plan fails if the king can approach the rook with tempo.

Why it works

The sixth-rank barrier delays the king until the pawn has moved ahead of it. Rear checks then exploit the distance between king and rook. This is why the move order matters: switching too early may let the king enter, while staying on the sixth rank after it is obstructed achieves nothing. Compare this with Lucena, where the stronger side has already reached a more advanced set-up and can create shelter.

Try to hold the draw

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Black to move and draw. Wait along the sixth rank while the pawn stays back; prepare rear checks after it reaches e6.
When is a rook ending a Philidor draw?The standard defence requires the defending king to control the promotion area and the rook to bar the attacking king from the sixth rank before that king gets established there. Pawn file, checking distance, rook placement and whose move it is still matter. If those conditions are absent, use calculation rather than the Philidor label.
What if I can’t reach the third rank in time?Look for checks from the side or rear, attacks on the pawn, and a way to put the king in front of it. Some positions have another drawing method; others are already lost. Test forcing checks first and keep enough distance that the attacking king cannot chase the rook with tempo.
Does the fifty-move rule help the defender?Yes — see the fifty-move rule. If the attacker makes no progress with a capture or pawn move, the defender can eventually claim a draw.

Drill the Philidor draw vs Stockfish

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