B09
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
The Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation is a chess opening classified under ECO code B09. It is reached after the moves 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. h4.
It belongs to the Pirc Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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