Bird Opening: Batavo-Polish Attack

1.
1. f4
2. Nf6
2.
3. Nf3
4. g6
3.
5. b4

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The Bird Opening: Batavo-Polish Attack is a chess opening classified under ECO code A02 (Flank openings). It is a variation of the Bird Opening family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.