The Queen's Pawn Game: London System is a chess opening classified under ECO code D02 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 3 moves: 1. d4 d5 2. Nf3 Nf6 3. Bf4. The resulting position leaves black to move.
Resulting Position
1. d4 d5 2. Nf3 Nf6 3. Bf4
rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - 3 3Resulting Position