♟
B01

Leonhardt (Rosen) Gambit, Center Counter

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4

Opening moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4. This position is classified under ECO code B01.

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