Home › Openings › Pirc Defense Pirc Defense: Byrne Variation ECO B07 · 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 Related variationsPirc Defense: Austrian AttackPirc Defense: Classical VariationPirc Defense: 150 AttackPirc Defense: Roscher GambitPirc Defense: Kholmov SystemPirc Defense: Sveshnikov SystemPirc Defense: Bayonet AttackPirc Defense: Chinese Variation Practice this opening · Play against the computer