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Philidor Defense — opening family

44 catalogued lines · ECO C41–C41

♞ View the head line Explore the full tree (44 lines) 🎓 Train this family

The shortest catalogued line of the family runs 1. e4 e5 2. Nf3 d6 — the position below. The continuation chips count how many catalogued lines extend this head with each next move; any branch can be explored on the interactive tree and played against the engine from there.

♜♞♝♛♚♝♞♜♟♟♟♟♟♟♟♟♟♞♟♟♟♟♟♟♟♜♞♝♛♚♝♜a8b7c6d5e4f3g2h1

Main continuations

d4 · 37Bc4 · 4

All 44 lines

NameECOMain line length
Philidor DefenseC414 plies
Philidor DefenseC415 plies
Philidor DefenseC415 plies
Philidor Defense: Philidor CountergambitC416 plies
Philidor Defense: Hanham VariationC416 plies
Philidor Defense: Philidor GambitC416 plies
Philidor Defense: Lopez CountergambitC416 plies
Philidor Defense: Nimzowitsch VariationC416 plies
Philidor DefenseC416 plies
Philidor Defense: Exchange VariationC416 plies
Philidor Defense: Philidor Countergambit, Zukertort VariationC417 plies
Philidor Defense: Steinitz VariationC417 plies
Philidor Defense: Nimzowitsch Variation, Klein VariationC417 plies
Philidor Defense: Bird GambitC417 plies
Philidor Defense: Nimzowitsch, Locock VariationC417 plies
Philidor Defense: Nimzowitsch VariationC417 plies
Philidor Defense: Morphy GambitC417 plies
Philidor Defense: Exchange VariationC417 plies
Philidor Defense: Hanham Variation, Sharp VariationC418 plies
Philidor Defense: Larsen VariationC418 plies
Philidor Defense: Lion VariationC418 plies
Philidor Defense: Albin-Blackburne GambitC418 plies
Philidor Defense: Boden VariationC418 plies
Philidor Defense: Exchange VariationC418 plies
Philidor Defense: Hanham Variation, Delmar VariationC419 plies
Philidor Defense: Hanham, Kmoch VariationC419 plies
Philidor Defense: Hanham Variation, Schlechter VariationC419 plies
Philidor Defense: Hanham Variation, Krause VariationC419 plies
Philidor Defense: Lion Variation, Shirov GambitC419 plies
Philidor Defense: Nimzowitsch Variation, Rellstab VariationC419 plies
Philidor Defense: Paulsen AttackC419 plies
Philidor Defense: Nimzowitsch Variation, Sokolsky VariationC419 plies
Philidor Defense: Philidor Countergambit, del Rio AttackC4111 plies
Philidor Defense: Hanham Variation, Steiner VariationC4111 plies
Philidor Defense: Lopez Countergambit, Jaenisch VariationC4111 plies
Philidor Defense: Lion Variation, Bishop SacrificeC4111 plies
Philidor Defense: Lion Variation, Lion's Claw, with Be2 and c6C4112 plies
Philidor Defense: Lion Variation, Lion's Claw, with Bc4 and h6C4112 plies
Philidor Defense: Philidor Countergambit, Berger VariationC4113 plies
Philidor Defense: Nimzowitsch, Larobok VariationC4113 plies
Philidor Defense: Lion Variation, Delayed Bishop SacrificeC4113 plies
Philidor Defense: Lion Variation, Forcing LineC4115 plies
Philidor Defense: Lion Variation, Sozin VariationC4116 plies
Philidor Defense: Berger VariationC4119 plies