ECO D00
ECO D00–D99 — Closed and Semi-Closed Games: 1.d4 d5 queen's pawn openings and the Grünfeld Defense.
67 named opening lines are classified under ECO code D00.
- Amazon Attack — 1.d4 d5 2.Qd3
- Blackmar-Diemer Gambit — 1.d4 d5 2.e4
- Blackmar-Diemer Gambit Accepted — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Kloss Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.O-O O-O 8.Kh1
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Mad Dog Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.h4
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Nimzowitsch Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.Ne5
- Blackmar-Diemer Gambit Accepted: Bogoljubow Defense, Studier Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 g6 6.Bc4 Bg7 7.O-O O-O 8.Qe1
- Blackmar-Diemer Gambit Accepted: Euwe Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Duthilleul Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6 6.Bd3
- Blackmar-Diemer Gambit Accepted: Euwe Defense, Zilbermints Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 e6 6.Bg5 Be7 7.Bd3 Nc6 8.O-O Nxd4 9.Kh1
- Blackmar-Diemer Gambit Accepted: Gunderam Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5
- Blackmar-Diemer Gambit Accepted: Gunderam Defense, Stader Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bf5 6.Ne5 e6 7.g4 Be4
- Blackmar-Diemer Gambit Accepted: Holwell Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Qd6
- Blackmar-Diemer Gambit Accepted: Kaulich Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 c5
- Blackmar-Diemer Gambit Accepted: Pietrowsky Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nc6
- Blackmar-Diemer Gambit Accepted: Ritter Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 b6
- Blackmar-Diemer Gambit Accepted: Ryder Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Qxf3
- Blackmar-Diemer Gambit Accepted: Schlutter Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nbd7
- Blackmar-Diemer Gambit Accepted: Teichmann Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4
- Blackmar-Diemer Gambit Accepted: Teichmann Defense, Ciesielski Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.Qf2
- Blackmar-Diemer Gambit Accepted: Teichmann Defense, Classical Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.Be3
- Blackmar-Diemer Gambit Accepted: Teichmann Defense, Seidel-Hall Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 6.h3 Bxf3 7.Qxf3 c6 8.g4
- Blackmar-Diemer Gambit Accepted: Ziegler Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 c6
- Blackmar-Diemer Gambit Declined: Brombacher Countergambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 c5
- Blackmar-Diemer Gambit Declined: Elbert Countergambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e5
- Blackmar-Diemer Gambit Declined: Gedult Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 a6
- Blackmar-Diemer Gambit Declined: Lamb Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Nc6
- Blackmar-Diemer Gambit Declined: Langeheinicke Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e3
- Blackmar-Diemer Gambit Declined: O'Kelly Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 c6
- Blackmar-Diemer Gambit Declined: Vienna Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Bf5
- Blackmar-Diemer Gambit Declined: Weinsbach Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e6
- Blackmar-Diemer Gambit Declined: Weinsbach Defense, Pfrang Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 e6 5.fxe4
- Blackmar-Diemer Gambit: Blackmar Gambit — 1.d4 d5 2.e4 dxe4 3.f3
- Blackmar-Diemer Gambit: Diemer-Rosenberg Attack — 1.d4 d5 2.e4 dxe4 3.Be3
- Blackmar-Diemer Gambit: Fritz Attack — 1.d4 d5 2.e4 dxe4 3.Bc4
- Blackmar-Diemer Gambit: Lemberger Countergambit — 1.d4 d5 2.e4 dxe4 3.Nc3 e5
- Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.dxe5
- Blackmar-Diemer Gambit: Lemberger Countergambit, Lange Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Nxe4
- Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Nge2
- Blackmar-Diemer Gambit: Lemberger Countergambit, Sneiders Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Qh5
- Blackmar-Diemer Gambit: Lemberger Countergambit, Soller Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.Be3
- Blackmar-Diemer Gambit: Netherlands Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 f5
- Blackmar-Diemer Gambit: Rasa-Studier Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Be3
- Blackmar-Diemer Gambit: Reversed Albin Countergambit — 1.d4 d5 2.e4 dxe4 3.Nc3 c5
- Blackmar-Diemer Gambit: Zeller Defense — 1.d4 d5 2.e4 dxe4 3.Nc3 Bf5
- Blackmar-Diemer Gambit: Zeller Defense, Soller Attack — 1.d4 d5 2.e4 dxe4 3.Nc3 Bf5 4.f3 Nf6 5.Bc4
- Blackmar-Diemer Gambit: von Popiel Gambit — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Bg5
- Blackmar-Diemer Gambit: von Popiel Gambit, Zilbermints Variation — 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.Bg5 Bf5 5.Bxf6 exf6 6.g4 Bg6 7.Qe2 Bb4 8.Qb5+
- Queen's Pawn Game: Accelerated London System — 1.d4 d5 2.Bf4
- Queen's Pawn Game: Accelerated London System, Steinitz Countergambit — 1.d4 d5 2.Bf4 c5
- Queen's Pawn Game: Accelerated London System, Steinitz Countergambit Accepted — 1.d4 d5 2.Bf4 c5 3.dxc5
- Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit — 1.d4 d5 2.Bf4 c5 3.e4
- Queen's Pawn Game: Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted — 1.d4 d5 2.Bf4 c5 3.e4 dxe4
- Queen's Pawn Game: Chigorin Variation — 1.d4 d5 2.Nc3
- Queen's Pawn Game: Chigorin Variation, Alburt Defense — 1.d4 d5 2.Nc3 Bf5
- Queen's Pawn Game: Chigorin Variation, Anti-Veresov — 1.d4 d5 2.Nc3 Bg4
- Queen's Pawn Game: Chigorin Variation, Fianchetto Defense — 1.d4 g6 2.Nf3 Bg7 3.Nc3 d5
- Queen's Pawn Game: Chigorin Variation, Irish Gambit — 1.d4 d5 2.Nc3 c5
- Queen's Pawn Game: Chigorin Variation, Shaviliuk Gambit — 1.d4 d5 2.Nc3 e5
- Queen's Pawn Game: Chigorin Variation, Shropshire Defense — 1.d4 d5 2.Nc3 h5
- Queen's Pawn Game: Hübsch Gambit — 1.d4 Nf6 2.Nc3 d5 3.e4
- Queen's Pawn Game: Levitsky Attack — 1.d4 d5 2.Bg5
- Queen's Pawn Game: Levitsky Attack, Welling Variation — 1.d4 d5 2.Bg5 Bg4
- Queen's Pawn Game: Mason Attack — 1.d4 d5 2.f4
- Queen's Pawn Game: Stonewall Attack — 1.d4 d5 2.e3 Nf6 3.Bd3
- Queen's Pawn Game: Zurich Gambit — 1.d4 d5 2.g4