Chess opening · ECO A45
Trompowsky Attack: Classical Defense
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1. d4 Nf6 2. Bg5 e6
Trompowsky Attack: Classical Defense is catalogued under ECO code A45. It is reached after 2 moves (4 half-moves): 1. d4 Nf6 2. Bg5 e6. After the last move it is White to play. White opens 1. d4. It is a named variation of the Trompowsky Attack, which has 10 catalogued lines in total.