ECO D01

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

9 named opening lines are classified under ECO code D01.

• Rapport-Jobava System — 1.d4 d5 2.Nc3 Nf6 3.Bf4
• Rapport-Jobava System, with e6 — 1.d4 d5 2.Nc3 e6 3.Bf4
• Richter-Veresov Attack — 1.d4 Nf6 2.Nc3 d5 3.Bg5
• Richter-Veresov Attack: Boyce Defense — 1.d4 Nf6 2.Nc3 d5 3.Bg5 Ne4
• Richter-Veresov Attack: Malich Gambit — 1.d4 Nf6 2.Nc3 d5 3.Bg5 c5 4.Bxf6 gxf6 5.e4 dxe4 6.d5
• Richter-Veresov Attack: Richter Variation — 1.d4 Nf6 2.Nc3 d5 3.Bg5 Bf5 4.f3
• Richter-Veresov Attack: Two Knights System — 1.d4 Nf6 2.Nc3 d5 3.Bg5 Nbd7 4.Nf3
• Richter-Veresov Attack: Two Knights System, Grünfeld Defense — 1.d4 Nf6 2.Nc3 d5 3.Bg5 Nbd7 4.Nf3 g6
• Richter-Veresov Attack: Veresov Variation — 1.d4 Nf6 2.Nc3 d5 3.Bg5 Bf5 4.Bxf6