ECO B09

ECO B00–B99 — Semi-Open Games other than the French: 1.e4 answered by the Sicilian, Caro-Kann, Scandinavian, Alekhine, Pirc and more.

7 named opening lines are classified under ECO code B09.

• Pirc Defense: Austrian Attack — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4
• Pirc Defense: Austrian Attack, Dragon Formation — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 c5
• Pirc Defense: Austrian Attack, Kurajica Variation — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Be3
• Pirc Defense: Austrian Attack, Ljubojevic Variation — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Bc4
• Pirc Defense: Austrian Attack, Unzicker Attack — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5
• Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.e5 Nfd7 7.h4
• Pirc Defense: Austrian Attack, Weiss Variation — 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O 6.Bd3