Lion Defense: Anti-Philidor

1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4

ECO B07

The Lion Defense: Anti-Philidor is a chess opening line in the Lion Defense complex, reached after 1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4.

It is catalogued under code B07 in the Encyclopaedia of Chess Openings (ECO).

The defining move f4 is chosen by White on move 4.

One named continuation branches from this position: the Lion's Cave.

Named variations

• Lion Defense: Anti-Philidor, Lion's Cave — ECO B07

Study this line with a grandmaster

This position is covered in the Beat The Pirc course: a GM-authored repertoire you study move by move, then practice against a human-like AI opponent.

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.