Philidor Position Made Simple
The Philidor Position is the defensive counterpart to the Lucena Position, the essential drawing technique in rook endgames. If the Lucena teaches you how to win with an extra pawn, the Philidor teaches you how to draw against one. Together, they form the foundation of rook endgame knowledge.
The position
Setup: The opponent has a pawn on the sixth rank (e.g., e6) with their king supporting it. You have a rook and king. Your king is on the back rank near the queening square. The question: how do you draw?
The third-rank defence
The key idea: Keep your rook on the third rank. Why? 1. The rook on the third rank prevents the opposing king from advancing (it can't cross the third rank without being checked). 2. Once the pawn advances to the seventh rank, you switch to checking from behind, the checks never stop because there's enough distance. This two-phase approach (third rank defence, then rear checks) is the complete technique.
Phase 1: The passive defence
While the opponent's pawn is on the sixth rank, keep your rook on the third rank passively. Don't check, just wait. The opponent can't make progress because: the king can't advance past the third rank, and the pawn can't promote because your king blocks the queening square.
Phase 2: The active defence
When the pawn advances to the seventh rank (it must, eventually), switch to active defence: check the king from behind (from the first or second rank). The king has no shelter, the checks continue indefinitely. The pawn on the seventh actually helps you because it blocks the opponent's king from sheltering. Practice both phases on the analysis board. See also: Rook Endgames Guide.