Queen's Pawn Game: Levitsky Attack, Welling Variation

The Queen's Pawn Game: Levitsky Attack, Welling Variation is a chess opening classified under ECO code D00 in the Closed & Semi-Closed Games family, arising from 1.d4 d5, including the Queen's Gambit, Slav Defense, and related systems. It is reached after 2 moves: 1. d4 d5 2. Bg5 Bg4. The resulting position leaves white to move.