ECO D15

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

8 named opening lines are classified under ECO code D15.

• Slav Defense: Alekhine Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e3
• Slav Defense: Chebanenko Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6
• Slav Defense: Chebanenko Variation, Advance System — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 a6 5.c5
• Slav Defense: Geller Gambit — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.e4
• Slav Defense: Schlechter Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 g6
• Slav Defense: Süchting Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 Qb6
• Slav Defense: Three Knights Variation — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3
• Slav Defense: Two Knights Attack — 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4