Slav Defense

The Classical main line — answer the Queen's Gambit by supporting …d5 with …c6, so the light-squared bishop gets out to f5 before …e6 can lock it in. Played from Black.

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4

Opening data: Lichess chess-openings (Slav Defense: Czech Variation, Classical System, Main Line, ECO D19) (CC0-1.0).