B09: Pirc, Austrian attack

B09 Sub-variants:

• Pirc, Austrian attack
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4
• Pirc, Austrian attack
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O
• Pirc, Austrian attack, 6.e5
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5
• Pirc, Austrian attack, 6.Be3
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3
• Pirc, Austrian attack, 6.Bd3
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3
• Pirc, Austrian attack, dragon formation
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5
• Pirc, Austrian attack, Ljubojevic variation
  1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4