ECO D57

ECO D00–D99 — Closed and Semi-Closed Games: 1.d4 d5 queen's pawn openings and the Grünfeld Defense.

3 named opening lines are classified under ECO code D57.

• Queen's Gambit Declined: Lasker Defense, Bernstein Variation — 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Nf3 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 Qd6
• Queen's Gambit Declined: Lasker Defense, Bernstein Variation, Mar del Plata Gambit — 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3 exd5 11.Qb3 Rd8 12.c4 Be6
• Queen's Gambit Declined: Lasker Defense, Main Line — 1.d4 d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.e3 Ne4 8.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3