← Philidor Defense

Practice: Antoshin Variation (4...g6)

Black fianchettoes against the Philidor

Black fianchettoes the king's bishop instead of developing to e7. The Antoshin Variation leads to positions resembling a KID or Modern setup, with the g7 bishop putting pressure on the long diagonal.

1. e4 e5
2. Nf3 d6
3. d4 exd4
4. Nxd4 g6
5. Nc3 Bg7
6. Be3 Nf6
7. Be2 O-O
8. O-O Nc6
♟

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Key strategic ideas

  • Black defends the e5 pawn with ...d6, keeping a solid but solid pawn chain. The position remains closed, limiting White's attacking chances.
  • Black often aims for ...f5 (Philidor Counter-Gambit) or ...Nbd7 with eventual ...c6 to challenge White's centre.
  • The Philidor is often used by players who want to avoid the heaviest theory of the Ruy Lopez or Italian Game.

Common mistakes & traps

  • The Philidor Counter-Gambit (3...f5) is a double-edged weapon. If White plays 4.exf5 e4, Black gets the e4 wedge and active pieces. White should meet it with 4.Nc3 or 4.Bc4.
  • The famous "Philidor's Legacy" is a smothered mate pattern that can arise in Philidor-like structures.

Pawn structure notes

The Philidor structure features pawns on d6 and e5 for Black against White's e4 and d4. Black's position is solid but cramped, with the d6-pawn supporting e5 and limiting White's piece placement.

Tips

  • 4...g6 is a flexible approach — Black holds the centre and develops the bishop to g7
  • The Antoshin was pioneered by the Soviet Grandmaster Vladimir Antoshin
  • Black's g7 bishop exerts strong influence on the centre after ...c5 and ...Nc6

About this line

This line is rated intermediate. Practice it repeatedly until you can play the entire sequence without thinking. The in-app trainer tracks your perfect streaks and celebrates milestones.