ECO D24

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 D24.

• Queen's Gambit Accepted: Bogoljubow Defense — 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 a6 5.e4
• Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit — 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3 c5 5.d5 e6 6.e4 exd5 7.e5
• Queen's Gambit Accepted: Showalter Variation — 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.Nc3