ECO volume D opening index

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Volume D holds 100 codes and 614 lines. Each code links through to the families it covers.

ECO is a code used to classify openings. It is one letter and two digits, and the letter names the volume.

D0072 lines

Families hereAmazon AttackBlackmar-Diemer GambitBlackmar-Diemer Gambit AcceptedBlackmar-Diemer Gambit DeclinedQueen's Pawn Game

  • Amazon Attack1. d4 d5 2. Qd33 moves
  • Blackmar-Diemer Gambit1. d4 d5 2. e43 moves
  • Blackmar-Diemer Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf66 moves
  • Blackmar-Diemer Gambit Accepted1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf38 moves
  • Bogoljubow Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g610 moves
  • Bogoljubow Defense, Kloss Attack1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh115 moves
  • Bogoljubow Defense, Mad Dog Attack1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. h413 moves
  • Bogoljubow Defense, Nimzowitsch Attack1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. Ne513 moves
  • Bogoljubow Defense, Studier Attack1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe115 moves
  • Euwe Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e610 moves
  • Euwe Defense, Duthilleul Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bd311 moves
  • Euwe Defense, Zilbermints Gambit1. 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. Kh117 moves
  • Gunderam Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf510 moves
  • Gunderam Defense, Stader Variation1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bf5 6. Ne5 e6 7. g4 Be414 moves
  • Holwell Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Qd610 moves
  • Kaulich Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c510 moves
  • Pietrowsky Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nc610 moves
  • Ritter Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 b610 moves
  • Ryder Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf39 moves
  • Schlutter Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Nbd710 moves
  • Teichmann Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg410 moves
  • Teichmann Defense, Ciesielski Variation1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Qf215 moves
  • Teichmann Defense, Classical Variation1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Be315 moves
  • Teichmann Defense, Seidel-Hall Attack1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. g415 moves
  • Ziegler Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 c610 moves
  • Brombacher Countergambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c58 moves
  • Elbert Countergambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e58 moves
  • Gedult Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 a68 moves
  • Lamb Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Nc68 moves
  • Langeheinicke Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e38 moves
  • O'Kelly Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c68 moves
  • Vienna Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf58 moves
  • Weinsbach Defense1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e68 moves
  • Weinsbach Defense, Pfrang Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e6 5. fxe49 moves
  • Blackmar Gambit1. d4 d5 2. e4 dxe4 3. f35 moves
  • Diemer-Rosenberg Attack1. d4 d5 2. e4 dxe4 3. Be35 moves
  • Fritz Attack1. d4 d5 2. e4 dxe4 3. Bc45 moves
  • Lemberger Countergambit1. d4 d5 2. e4 dxe4 3. Nc3 e56 moves
  • Lemberger Countergambit, Endgame Variation1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. dxe57 moves
  • Lemberger Countergambit, Lange Gambit1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nxe47 moves
  • Lemberger Countergambit, Rasmussen Attack1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Nge27 moves
  • Lemberger Countergambit, Sneiders Attack1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Qh57 moves
  • Lemberger Countergambit, Soller Attack1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Be37 moves
  • Netherlands Variation1. d4 d5 2. e4 dxe4 3. Nc3 f56 moves
  • Rasa-Studier Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Be37 moves
  • Reversed Albin Countergambit1. d4 d5 2. e4 dxe4 3. Nc3 c56 moves
  • Zeller Defense1. d4 d5 2. e4 dxe4 3. Nc3 Bf56 moves
  • Zeller Defense, Soller Attack1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 4. f3 Nf6 5. Bc49 moves
  • von Popiel Gambit1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg57 moves
  • von Popiel Gambit, Zilbermints Variation1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 Bf5 5. Bxf6 exf6 6. g4 Bg6 7. Qe2 Bb4 8. Qb5+15 moves
  • Queen's Pawn Game1. d4 d52 moves
  • Queen's Pawn Game1. d4 d5 2. e33 moves
  • Queen's Pawn Game1. d4 d5 2. e3 Nf64 moves
  • Accelerated London System1. d4 d5 2. Bf43 moves
  • Accelerated London System, Steinitz Countergambit1. d4 d5 2. Bf4 c54 moves
  • Accelerated London System, Steinitz Countergambit Accepted1. d4 d5 2. Bf4 c5 3. dxc55 moves
  • Accelerated London System, Steinitz Countergambit, Morris Countergambit1. d4 d5 2. Bf4 c5 3. e45 moves
  • Accelerated London System, Steinitz Countergambit, Morris Countergambit Accepted1. d4 d5 2. Bf4 c5 3. e4 dxe46 moves
  • Chigorin Variation1. d4 d5 2. Nc33 moves
  • Chigorin Variation1. d4 d5 2. Nc3 e64 moves
  • Chigorin Variation, Alburt Defense1. d4 d5 2. Nc3 Bf54 moves
  • Chigorin Variation, Anti-Veresov1. d4 d5 2. Nc3 Bg44 moves
  • Chigorin Variation, Fianchetto Defense1. d4 g6 2. Nf3 Bg7 3. Nc3 d56 moves
  • Chigorin Variation, Irish Gambit1. d4 d5 2. Nc3 c54 moves
  • Chigorin Variation, Shaviliuk Gambit1. d4 d5 2. Nc3 e54 moves
  • Chigorin Variation, Shropshire Defense1. d4 d5 2. Nc3 h54 moves
  • Hübsch Gambit1. d4 Nf6 2. Nc3 d5 3. e45 moves
  • Levitsky Attack1. d4 d5 2. Bg53 moves
  • Levitsky Attack, Welling Variation1. d4 d5 2. Bg5 Bg44 moves
  • Mason Attack1. d4 d5 2. f43 moves
  • Stonewall Attack1. d4 d5 2. e3 Nf6 3. Bd35 moves
  • Zurich Gambit1. d4 d5 2. g43 moves

D0112 lines

Families hereRapport-Jobava SystemRichter-Veresov Attack

  • Rapport-Jobava System1. d4 d5 2. Nc3 Nf6 3. Bf45 moves
  • Rapport-Jobava System1. d4 d5 2. Nc3 Nf6 3. Bf4 e66 moves
  • Rapport-Jobava System1. d4 d5 2. Nc3 Nf6 3. Bf4 g66 moves
  • with e61. d4 d5 2. Nc3 e6 3. Bf45 moves
  • Richter-Veresov Attack1. d4 Nf6 2. Nc3 d5 3. Bg55 moves
  • Richter-Veresov Attack1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf56 moves
  • Boyce Defense1. d4 Nf6 2. Nc3 d5 3. Bg5 Ne46 moves
  • Malich Gambit1. d4 Nf6 2. Nc3 d5 3. Bg5 c5 4. Bxf6 gxf6 5. e4 dxe4 6. d511 moves
  • Richter Variation1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. f37 moves
  • Two Knights System1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf37 moves
  • Two Knights System, Grünfeld Defense1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g68 moves
  • Veresov Variation1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Bxf67 moves

D0220 lines

Families hereLondon SystemQueen's Gambit DeclinedQueen's Pawn Game

  • Poisoned Pawn Variation1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc39 moves
  • Baltic Defense, Pseudo-Slav1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c68 moves
  • Anti-Torre1. Nf3 d5 2. d4 Bg44 moves
  • Chandler Gambit1. d4 d5 2. Nf3 c5 3. g3 cxd4 4. Bg27 moves
  • Chigorin Variation1. d4 d5 2. Nf3 Nc64 moves
  • Krause Variation1. d4 d5 2. Nf3 c54 moves
  • Levitsky Attack, Euwe Variation, Modern Line1. d4 d5 2. Nf3 c6 3. Bg5 h6 4. Bh4 Qb68 moves
  • London System1. d4 d5 2. Nf3 Nf6 3. Bf45 moves
  • London System1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e37 moves
  • London System1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd29 moves
  • London System1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. c311 moves
  • London System, Pterodactyl Variation1. d4 g6 2. Nf3 Bg7 3. Bf4 c5 4. c3 cxd4 5. cxd4 Qa5+10 moves
  • London System, with e61. d4 d5 2. Nf3 e6 3. Bf45 moves
  • London System, with e61. d4 d5 2. Nf3 e6 3. Bf4 Nf66 moves
  • Symmetrical Variation1. d4 d5 2. Nf3 Nf64 moves
  • Symmetrical Variation, Pseudo-Catalan1. d4 d5 2. Nf3 Nf6 3. g35 moves
  • Symmetrical Variation, Pseudo-Catalan1. d4 d5 2. Nf3 Nf6 3. g3 c6 4. Bg2 Bg48 moves
  • Symmetrical Variation, Pseudo-Catalan1. Nf3 d5 2. g3 c6 3. Bg2 Nf6 4. O-O Bg4 5. d4 e610 moves
  • Zilbermints Countergambit1. d4 d5 2. Nf3 Nf6 3. c4 b56 moves
  • Zukertort Variation1. d4 d5 2. Nf33 moves

D0314 lines

Families hereQueen's Pawn Game

  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg55 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. Nbd29 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. Nbd2 Nc6 6. c311 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nbd710 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nbd7 6. Nbd211 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nbd7 6. Nbd2 Bd612 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nbd7 6. Nbd2 Be712 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nc610 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 c5 5. c3 Nc6 6. Bd311 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. e3 Nbd7 5. Bd39 moves
  • Torre Attack1. d4 d5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Be7 5. c3 Nbd7 6. e311 moves
  • Torre Attack, Gossip Variation1. d4 d5 2. Nf3 Nf6 3. Bg5 Ne46 moves
  • Torre Attack, Grünfeld Variation1. d4 d5 2. Nf3 Nf6 3. Bg5 g66 moves
  • Torre Attack, Grünfeld Variation1. d4 d5 2. Nf3 Nf6 3. Bg5 g6 4. e37 moves

D043 lines

Families hereQueen's Pawn Game

  • Colle System1. d4 d5 2. Nf3 Nf6 3. e35 moves
  • Colle System, Anti-Colle1. d4 d5 2. Nf3 Nf6 3. e3 Bf56 moves
  • Colle System, Grünfeld Formation1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg78 moves

D0515 lines

Families hereQueen's Pawn GameRubinstein Opening

  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e66 moves
  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd37 moves
  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b37 moves
  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc610 moves
  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6 6. Bd311 moves
  • Colle System1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. b3 c5 5. Bb2 Nc6 6. Nbd211 moves
  • Colle System1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O c5 6. b3 Be7 7. Bb2 O-O 8. Nbd2 d516 moves
  • Colle System, Traditional Colle1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c39 moves
  • Zukertort Variation1. d4 d5 2. Nf3 c5 3. e3 Nf6 4. Nbd2 e6 5. b39 moves
  • Rubinstein Opening1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b39 moves
  • Bogoljubow Defense1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Bd6 7. Bb2 O-O14 moves
  • Classical Defense1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. b3 Nc6 6. O-O Be7 7. Bb2 O-O14 moves
  • Semi-Slav Defense1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Bd6 5. O-O O-O 6. b3 Nbd7 7. Bb213 moves
  • Semi-Slav Defense1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Bd6 5. O-O O-O 6. b3 Nbd7 7. Bb2 c614 moves
  • Semi-Slav Defense1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Bd6 5. O-O O-O 6. b3 Nbd7 7. Bb2 c6 8. Nbd215 moves

D0613 lines

Families hereQueen's GambitQueen's Gambit Declined

  • Queen's Gambit1. d4 d5 2. c43 moves
  • Austrian Attack, Salvio Countergambit1. d4 d5 2. c4 c5 3. dxc5 d46 moves
  • Austrian Defense1. d4 d5 2. c4 c54 moves
  • Austrian Defense, Gusev Countergambit1. d4 d5 2. c4 c5 3. cxd5 Nf66 moves
  • Austrian Defense, Haberditz Variation1. d4 d5 2. c4 c5 3. cxd5 Nf6 4. e4 Nxe4 5. dxc5 Qa5+10 moves
  • Baltic Defense1. d4 d5 2. c4 Bf54 moves
  • Baltic Defense, Argentinian Gambit1. d4 d5 2. c4 Bf5 3. cxd5 Bxb1 4. Qa4+ c6 5. dxc6 Nxc610 moves
  • Baltic Defense, Pseudo-Chigorin1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Nc68 moves
  • Baltic Defense, Queen Attack1. d4 d5 2. c4 Bf5 3. Qb35 moves
  • Baltic Defense, Queen Attack Deferred1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Qb37 moves
  • Marshall Defense1. d4 d5 2. c4 Nf64 moves
  • Marshall Defense, Tan Gambit1. d4 d5 2. c4 Nf6 3. cxd5 c66 moves
  • Zilbermints Gambit1. d4 d5 2. c4 b54 moves

D0711 lines

Families hereQueen's Gambit Declined

  • Chigorin Defense1. d4 d5 2. c4 Nc64 moves
  • Chigorin Defense1. d4 d5 2. c4 Nc6 3. Nc35 moves
  • Chigorin Defense1. d4 d5 2. c4 Nc6 3. Nc3 dxc46 moves
  • Chigorin Defense, Exchange Variation1. d4 d5 2. c4 Nc6 3. cxd5 Qxd56 moves
  • Chigorin Defense, Exchange Variation, Costa's Line1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 exd4 8. Ne215 moves
  • Chigorin Defense, Janowski Variation1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf37 moves
  • Chigorin Defense, Lazard Gambit1. d4 d5 2. c4 Nc6 3. Nf3 e56 moves
  • Chigorin Defense, Main Line1. d4 d5 2. c4 Nc6 3. Nf3 Bg46 moves
  • Chigorin Defense, Main Line, Alekhine Variation1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Qa47 moves
  • Chigorin Defense, Modern Gambit1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3 Nf68 moves
  • Chigorin Defense, Tartakower Gambit1. d4 d5 2. c4 Nc6 3. Nc3 e56 moves

D089 lines

Families hereQueen's Gambit Declined

  • Albin Countergambit1. d4 d5 2. c4 e54 moves
  • Albin Countergambit, Balogh Variation1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Qe710 moves
  • Albin Countergambit, Janowski Variation1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 f610 moves
  • Albin Countergambit, Krenosz Variation1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bg4 6. h3 Bxf3 7. Nxf3 Bb4+ 8. Bd2 Qe716 moves
  • Albin Countergambit, Lasker Trap1. d4 d5 2. c4 e5 3. dxe5 d4 4. e3 Bb4+ 5. Bd2 dxe310 moves
  • Albin Countergambit, Modern Line1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd29 moves
  • Albin Countergambit, Normal Line1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf37 moves
  • Albin Countergambit, Spassky Variation1. d4 d5 2. c4 e5 3. dxe5 d4 4. e47 moves
  • Albin Countergambit, Tartakower Defense1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 c58 moves

D094 lines

Families hereQueen's Gambit Declined

  • Albin Countergambit, Fianchetto Variation1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g39 moves
  • Albin Countergambit, Fianchetto Variation, Be6 Line1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Be610 moves
  • Albin Countergambit, Fianchetto Variation, Bf5 Line1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bf510 moves
  • Albin Countergambit, Fianchetto Variation, Bg4 Line1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg410 moves

D109 lines

Families hereSlav Defense

  • Slav Defense1. d4 d5 2. c4 c64 moves
  • Slav Defense1. d4 d5 2. c4 c6 3. Nc35 moves
  • Slav Defense1. d4 d5 2. c4 c6 3. Nc3 dxc46 moves
  • Diemer Gambit1. d4 d5 2. c4 c6 3. e45 moves
  • Exchange Variation1. d4 d5 2. c4 c6 3. cxd55 moves
  • Exchange Variation, Boor Attack1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. f39 moves
  • Slav Gambit, Alekhine Attack1. d4 d5 2. c4 c6 3. Nc3 dxc4 4. e47 moves
  • Winawer Countergambit1. d4 d5 2. c4 c6 3. Nc3 e56 moves
  • Winawer Countergambit, Anti-Winawer Gambit1. d4 d5 2. c4 c6 3. Nc3 e5 4. e47 moves

D118 lines

Families hereSlav Defense

  • Bonet Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Bg57 moves
  • Breyer Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nbd27 moves
  • Modern Line1. d4 d5 2. c4 c6 3. Nf35 moves
  • Modern Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 dxc4 5. Bg2 g610 moves
  • Modern Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. g3 Bg4 5. Bg2 e6 6. O-O11 moves
  • Modern Line1. d4 d5 2. Nf3 Nf6 3. g3 c6 4. Bg2 Bg4 5. O-O Nbd7 6. c411 moves
  • Quiet Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e37 moves
  • Quiet Variation, Pin Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bg48 moves

D124 lines

Families hereSlav Defense

  • Quiet Variation, Amsterdam Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc3 e6 7. Ne5 Nfd714 moves
  • Quiet Variation, Landau Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 Qc8 7. Bd2 e6 8. Na315 moves
  • Quiet Variation, Schallopp Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf58 moves
  • Quiet Variation, Schallopp Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e610 moves

D132 lines

Families hereSlav Defense

  • Exchange Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd58 moves
  • Exchange Variation, Schallopp Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Nc311 moves

D142 lines

Families hereSlav Defense

  • Exchange Variation, Symmetrical Line1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf512 moves
  • Exchange Variation, Trifunovic Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb416 moves

D1510 lines

Families hereSlav Defense

  • Alekhine Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e39 moves
  • Chebanenko Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a68 moves
  • Chebanenko Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 Bf510 moves
  • Chebanenko Variation, Advance System1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c59 moves
  • Geller Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e49 moves
  • Geller Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. e4 b5 6. e511 moves
  • Schlechter Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 g68 moves
  • Süchting Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 Qb68 moves
  • Three Knights Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc37 moves
  • Two Knights Attack1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc48 moves

D164 lines

Families hereSlav Defense

  • Alapin Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a49 moves
  • Smyslov Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na610 moves
  • Soultanbeieff Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e610 moves
  • Steiner Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg410 moves

D178 lines

Families hereSlav Defense

  • Czech Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf510 moves
  • Czech Variation, Bled Attack1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Nh411 moves
  • Czech Variation, Carlsbad Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e516 moves
  • Czech Variation, Carlsbad Variation, Morozevich Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g522 moves
  • Czech Variation, Krause Attack1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne511 moves
  • Czech Variation, Krause Attack, Fazekas Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Na6 7. e413 moves
  • Czech Variation, Wiesbaden Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e612 moves
  • Czech Variation, Wiesbaden Variation, Sharp Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 e6 7. f3 Bb4 8. e415 moves

D182 lines

Families hereSlav Defense

  • Czech Variation, Classical System1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e311 moves
  • Czech Variation, Lasker Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 Na612 moves

D193 lines

Families hereSlav Defense

  • Czech Variation, Classical System, Main Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe217 moves
  • Czech Variation, Dutch Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O15 moves
  • Czech Variation, Dutch Variation, Sämisch Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Ne4 10. g419 moves

D2017 lines

Families hereQueen's Gambit Accepted

  • Queen's Gambit Accepted1. d4 d5 2. c4 dxc44 moves
  • Accelerated Mannheim Variation1. d4 d5 2. c4 dxc4 3. Qa4+5 moves
  • Central Variation, Alekhine System1. d4 d5 2. c4 dxc4 3. e4 Nf66 moves
  • Central Variation, Greco Variation1. d4 d5 2. c4 dxc4 3. e4 b56 moves
  • Central Variation, McDonnell Defense1. d4 d5 2. c4 dxc4 3. e4 e56 moves
  • Central Variation, McDonnell Defense, Somov Gambit1. d4 d5 2. c4 dxc4 3. e4 e5 4. Bxc47 moves
  • Central Variation, Modern Defense1. d4 d5 2. c4 dxc4 3. e4 Nc66 moves
  • Central Variation, Rubinstein Defense1. d4 d5 2. c4 dxc4 3. e4 c56 moves
  • Central Variation, Rubinstein Defense, Yefimov Gambit1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 b58 moves
  • Linares Variation1. d4 d5 2. c4 dxc4 3. e4 c5 4. d5 Nf6 5. Nc3 b510 moves
  • Old Variation1. d4 d5 2. c4 dxc4 3. e35 moves
  • Old Variation, Billinger Gambit1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. a311 moves
  • Old Variation, Christensen Gambit1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nf311 moves
  • Old Variation, Korchnoi Gambit1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Kf111 moves
  • Old Variation, Novikov Gambit1. d4 d5 2. c4 dxc4 3. e3 e5 4. Bxc4 exd4 5. Qb3 Qe7 6. Nd211 moves
  • Saduleto Variation1. d4 d5 2. c4 dxc4 3. e45 moves
  • Schwartz Defense1. d4 d5 2. c4 dxc4 3. e4 f56 moves

D216 lines

Families hereQueen's Gambit Accepted

  • Alekhine Defense, Borisenko-Furman Variation1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e47 moves
  • Godes Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nd76 moves
  • Gunsberg Defense1. d4 d5 2. c4 dxc4 3. Nf3 c56 moves
  • Normal Variation1. d4 d5 2. c4 dxc4 3. Nf35 moves
  • Rosenthal Variation1. d4 d5 2. c4 dxc4 3. Nf3 e66 moves
  • Slav Gambit1. d4 d5 2. c4 dxc4 3. Nf3 b56 moves

D223 lines

Families hereQueen's Gambit Accepted

  • Alekhine Defense1. d4 d5 2. c4 dxc4 3. Nf3 a66 moves
  • Alekhine Defense, Alatortsev Variation1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. d511 moves
  • Alekhine Defense, Haberditz Variation1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 b58 moves

D232 lines

Families hereQueen's Gambit Accepted

  • Queen's Gambit Accepted1. d4 d5 2. c4 dxc4 3. Nf3 Nf66 moves
  • Mannheim Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+7 moves

D245 lines

Families hereQueen's Gambit Accepted

  • Queen's Gambit Accepted1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. e49 moves
  • Queen's Gambit Accepted1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg59 moves
  • Bogoljubow Defense1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e49 moves
  • Gunsberg Defense, Prianishenmo Gambit1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 c5 5. d5 e6 6. e4 exd5 7. e513 moves
  • Showalter Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc37 moves

D254 lines

Families hereQueen's Gambit Accepted

  • Janowski-Larsen Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg48 moves
  • Normal Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e37 moves
  • Smyslov Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 g68 moves
  • Winawer Defense1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Be68 moves

D269 lines

Families hereQueen's Gambit Accepted

  • Classical Defense1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c510 moves
  • Classical Defense, Normal Line1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O11 moves
  • Classical Defense, Steinitz Variation, Development Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc612 moves
  • Classical Defense, Steinitz Variation, Exchange Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O cxd412 moves
  • Classical, Furman Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Qe2 a6 7. dxc5 Bxc5 8. O-O Nc6 9. e4 b5 10. e519 moves
  • Normal Variation, Traditional System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e68 moves
  • Normal Variation, Traditional System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Be7 6. O-O a612 moves
  • Normal Variation, Traditional System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Be7 6. O-O O-O12 moves
  • Normal Variation, Traditional System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Be7 6. O-O O-O 7. Nc313 moves

D276 lines

Families hereQueen's Gambit Accepted

  • Classical Defense, Main Line1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a612 moves
  • Classical Defense, Main Line1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc313 moves
  • Classical Defense, Rubinstein Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a413 moves
  • Classical Defense, Rubinstein Variation1. d4 d5 2. c4 dxc4 3. Nf3 e6 4. e3 Nf6 5. Bxc4 Be7 6. O-O O-O 7. Nc3 a6 8. a4 c516 moves
  • Classical Defense, Russian Gambit1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 c5 6. O-O a6 7. e413 moves
  • Furman Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Bxc514 moves

D283 lines

Families hereQueen's Gambit Accepted

  • Classical Defense, Alekhine System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe213 moves
  • Classical Defense, Alekhine System1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b514 moves
  • Classical, Flohr Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Nc6 9. Rd1 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 Qc726 moves

D293 lines

Families hereQueen's Gambit Accepted

  • Classical Defense, Alekhine System, Main Line1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb716 moves
  • Classical Defense, Alekhine System, Main Line1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. Nc317 moves
  • Classical Defense, Alekhine System, Smyslov Variation1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. Rd1 Nbd7 10. Nc3 Bd620 moves

D3012 lines

Families hereQueen's Gambit DeclinedSemi-Slav Defense

  • Queen's Gambit Declined1. d4 d5 2. c4 e64 moves
  • Capablanca Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 h68 moves
  • Capablanca Variation1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Bg5 c6 5. Nbd2 Nbd7 6. e311 moves
  • Semmering Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7 6. Bd3 c512 moves
  • Spielmann Variation1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 c6 5. Nbd2 g610 moves
  • Stonewall Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Ne4 6. Bd3 f512 moves
  • Tarrasch Defense, Pseudo-Tarrasch1. d4 d5 2. c4 e6 3. Nf3 c56 moves
  • Tarrasch Defense, Pseudo-Tarrasch Bishop Attack1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. Bg59 moves
  • Traditional Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg57 moves
  • Vienna Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Bb4+8 moves
  • Quiet Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd29 moves
  • Quiet Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd710 moves

D3121 lines

Families hereQueen's Gambit DeclinedSemi-Slav Defense

  • Alapin Variation1. d4 e6 2. c4 b6 3. Nc3 d56 moves
  • Charousek Variation1. d4 d5 2. c4 e6 3. Nc3 Be76 moves
  • Charousek Variation, Miladinovic Gambit1. d4 d5 2. c4 e6 3. Nc3 Be7 4. e4 dxe4 5. f39 moves
  • Janowski Variation1. d4 d5 2. c4 e6 3. Nc3 a66 moves
  • Queen's Knight Variation1. d4 d5 2. c4 e6 3. Nc35 moves
  • Semi-Slav, Abrahams Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a514 moves
  • Semi-Slav, Junge Variation1. d4 d5 2. c4 e6 3. Nf3 c6 4. Nc3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 Qb614 moves
  • Semi-Slav, Koomen Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 Qe714 moves
  • Accelerated Move Order1. d4 d5 2. c4 e6 3. Nc3 c66 moves
  • Anti-Noteboom, Stonewall Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f58 moves
  • Anti-Noteboom, Stonewall Variation, Portisch Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. g49 moves
  • Gunderam Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. f39 moves
  • Marshall Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. e47 moves
  • Marshall Gambit, Forgotten Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Nc311 moves
  • Marshall Gambit, Main Line1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd211 moves
  • Marshall Gambit, Tolush Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e4 dxe4 5. Nxe4 Bb4+ 6. Bd2 Qxd4 7. Bxb4 Qxe4+ 8. Be2 c5 9. Bxc5 Qxg218 moves
  • Noteboom Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc48 moves
  • Noteboom Variation, Abrahams Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. e3 Bxc3+ 7. bxc3 b5 8. axb5 cxb516 moves
  • Noteboom Variation, Anti-Noteboom Gambit1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. g39 moves
  • Noteboom Variation, Anti-Noteboom Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg59 moves
  • Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. Bg5 f610 moves

D3213 lines

Families hereQueen's Gambit DeclinedTarrasch Defense

  • Tarrasch Defense1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd58 moves
  • Tarrasch Defense1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. Bg5 Be712 moves
  • Tarrasch Defense1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. Bg5 Be7 7. Bxe7 Ngxe714 moves
  • Tarrasch Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 c5 5. cxd5 exd5 6. Nc3 a6 7. Be2 Nc614 moves
  • Tarrasch Defense1. d4 d5 2. c4 e6 3. Nc3 c56 moves
  • Grünfeld Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. dxc5 d4 7. Na4 b514 moves
  • Marshall Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e49 moves
  • Schara Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd48 moves
  • Symmetrical Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. e3 Nf6 5. Nf3 Nc610 moves
  • Symmetrical Variation1. c4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. e3 e6 5. d4 d5 6. cxd5 exd512 moves
  • Tarrasch Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. dxc5 d4 6. Na4 b512 moves
  • Two Knights Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf39 moves
  • von Hennig Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4 5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Be614 moves

D336 lines

Families hereTarrasch Defense

  • Dubov Tarrasch1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 cxd4 8. Nxd4 Bc516 moves
  • Prague Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf612 moves
  • Rubinstein System1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g311 moves
  • Swedish Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c412 moves
  • Swedish Variation, Central Break1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 c4 7. e413 moves
  • Wagner Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Bg414 moves

D3413 lines

Families hereQueen's Gambit DeclinedTarrasch Defense

  • Tarrasch Defense, Stoltz Variation1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. Nc3 O-O 9. Bg5 Be6 10. Rc1 b620 moves
  • Classical Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O16 moves
  • Classical Variation, Advance Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 c418 moves
  • Classical Variation, Bogoljubow Variation1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. Nf3 d5 5. cxd5 exd5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be6 10. Rc1 c420 moves
  • Classical Variation, Carlsbad Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg517 moves
  • Classical Variation, Chandler Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Rc1 Be624 moves
  • Classical Variation, Classical Tarrasch Gambit1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 d418 moves
  • Classical Variation, Endgame Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 Be618 moves
  • Classical Variation, Main Line1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re822 moves
  • Classical Variation, Petursson Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 Re820 moves
  • Classical Variation, Réti Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na419 moves
  • Classical Variation, Spassky Variation1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Bg422 moves
  • Prague Variation, Main Line1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be714 moves

D3510 lines

Families hereQueen's Gambit Declined

  • Exchange Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd57 moves
  • Exchange Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 b6 5. Nc3 Bd6 6. cxd5 exd512 moves
  • Exchange Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Be7 5. cxd5 exd5 6. Bd3 O-O 7. Nf3 c614 moves
  • Exchange Variation, Carlsen Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 Bg414 moves
  • Exchange Variation, Chameleon Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. O-O-O19 moves
  • Exchange Variation, Positional Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg59 moves
  • Exchange Variation, Positional Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c610 moves
  • Exchange Variation, Sämisch Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. cxd5 exd5 6. Bf411 moves
  • Harrwitz Attack1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bf47 moves
  • Normal Defense1. d4 d5 2. c4 e6 3. Nc3 Nf66 moves

D364 lines

Families hereQueen's Gambit Declined

  • Exchange Variation, Reshevsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc211 moves
  • Exchange Variation, Reshevsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 Nbd7 8. Bd315 moves
  • Exchange Variation, Reshevsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 O-O 8. Bd315 moves
  • Exchange Variation, Reshevsky Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 O-O 8. Bd3 h6 9. Bh417 moves

D3715 lines

Families hereQueen's Gambit Declined

  • Barmen Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd78 moves
  • Harrwitz Attack1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf49 moves
  • Harrwitz Attack1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. Rd1 Qa5 10. a319 moves
  • Harrwitz Attack1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5 8. Qc2 Nc6 9. a3 Qa5 10. O-O-O19 moves
  • Harrwitz Attack, Fianchetto Defense1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bf4 O-O 6. e3 b612 moves
  • Harrwitz Attack, Main Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc514 moves
  • Harrwitz Attack, Orthodox Defense1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4 O-O 6. e3 c612 moves
  • Harrwitz Attack, Two Knights Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd712 moves
  • Harrwitz Attack, Two Knights Defense, Blockade Line1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. c513 moves
  • Knight Defense, Alekhine Gambit1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 dxc412 moves
  • Miles Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. Qc211 moves
  • Three Knights Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc37 moves
  • Three Knights Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. e3 O-O10 moves
  • Three Knights, Vienna Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc48 moves
  • Vienna Variation, Quiet Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e39 moves

D383 lines

Families hereQueen's Gambit Declined

  • Ragozin Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb48 moves
  • Ragozin Defense, Alekhine Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+9 moves
  • Westphalian Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c512 moves

D391 lines

Families hereQueen's Gambit Declined

  • Ragozin Defense, Vienna Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc410 moves

D406 lines

Families hereQueen's Gambit Declined

  • Semi-Tarrasch Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c58 moves
  • Semi-Tarrasch Defense1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. a3 cxd4 7. exd4 Bd614 moves
  • Semi-Tarrasch Defense, Levenfish Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. Bd3 Bd6 7. O-O O-O 8. Qe2 Qe7 9. dxc5 Bxc5 10. e419 moves
  • Semi-Tarrasch Defense, Pillsbury Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. Bg59 moves
  • Semi-Tarrasch Defense, Symmetrical Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. e3 Nc6 6. Bd3 Bd6 7. O-O O-O14 moves
  • Semi-Tarrasch Defense, with e31. d4 d5 2. c4 c5 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nc6 6. Bd311 moves

D4110 lines

Families hereQueen's Gambit Declined

  • Semi-Tarrasch Defense1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 d5 5. d4 e610 moves
  • Semi-Tarrasch Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd59 moves
  • Semi-Tarrasch Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g311 moves
  • Semi-Tarrasch Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. g3 Nc6 7. Bg213 moves
  • Semi-Tarrasch Defense, Endgame Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 cxd4 6. Qxd4 exd5 7. e4 dxe4 8. Qxd8+15 moves
  • Semi-Tarrasch Defense, Exchange Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e411 moves
  • Semi-Tarrasch Defense, Exchange Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc313 moves
  • Semi-Tarrasch Defense, Kmoch Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bb521 moves
  • Semi-Tarrasch Defense, Pillsbury Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e311 moves
  • Semi-Tarrasch Defense, San Sebastian Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Qa518 moves

D421 lines

Families hereQueen's Gambit Declined

  • Semi-Tarrasch Defense, Main Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd313 moves

D434 lines

Families hereSemi-Slav Defense

  • Semi-Slav Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e68 moves
  • Anti-Moscow Gambit1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh411 moves
  • Hastings Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb313 moves
  • Moscow Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf612 moves

D447 lines

Families hereSemi-Slav Defense AcceptedSemi-Slav Defense

  • Semi-Slav Defense Accepted1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc410 moves
  • Botvinnik Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e411 moves
  • Botvinnik Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg517 moves
  • Botvinnik Variation, Alatortsev System1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 Nd518 moves
  • Botvinnik Variation, Ekstrom Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne519 moves
  • Botvinnik Variation, Lilienthal Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g321 moves
  • Botvinnik Variation, Szabo Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. Qf321 moves

D4515 lines

Families hereSemi-Slav Defense

  • Accelerated Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a610 moves
  • Main Line1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf39 moves
  • Normal Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd710 moves
  • Normal Variation1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. b3 Bd6 6. Bb2 O-O 7. d4 Nbd714 moves
  • Normal Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. b3 Bd6 7. Bb2 O-O 8. Be215 moves
  • Rubinstein System1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. Ne511 moves
  • Stoltz Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc211 moves
  • Stoltz Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. b313 moves
  • Stoltz Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. b3 Bb714 moves
  • Stoltz Variation1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Qc2 Bd6 7. b313 moves
  • Stoltz Variation1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Bb215 moves
  • Stoltz Variation, Center Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e413 moves
  • Stoltz Variation, Center Variation, Mikhalchishin Line1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. e4 dxe4 8. Nxe4 Nxe4 9. Qxe4 e5 10. dxe519 moves
  • Stoltz Variation, Shabalov Attack1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. g413 moves
  • Stonewall Defense1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Ne4 6. Bd3 f512 moves

D4612 lines

Families hereSemi-Slav Defense

  • Bogoljubow Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Be712 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd612 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bd6 7. Qc213 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. b3 Bd6 7. Bb2 O-O 8. Bd315 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. b3 Bb7 8. Bd315 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Bb2 Re8 9. Bd317 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Bb2 Qe7 9. Bd317 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nf3 e6 4. e3 Nf6 5. Nc3 Bd6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Nbd7 9. O-O O-O 10. Qc219 moves
  • Chigorin Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bd6 9. O-O Bb7 10. a3 O-O 11. Qc221 moves
  • Main Line1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd311 moves
  • Main Line1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. b3 Bb7 8. Bd3 Be7 9. O-O O-O 10. Bb219 moves
  • Romih Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 Bb412 moves

D476 lines

Families hereSemi-Slav Defense

  • Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b514 moves
  • Meran Variation, Lundin Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 b416 moves
  • Meran Variation, Wade Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb716 moves
  • Meran Variation, Wade Variation, Kaidanov Gambit1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd5 12. O-O cxd4 13. Nxd425 moves
  • Meran Variation, Wade Variation, Larsen Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. e4 b4 10. Na4 c5 11. e5 Nd522 moves
  • Semi-Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc413 moves

D485 lines

Families hereSemi-Slav Defense

  • Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a616 moves
  • Meran Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c518 moves
  • Meran Variation, Old Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e519 moves
  • Meran Variation, Pirc Variation1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b418 moves
  • Meran Variation, Reynolds' Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d519 moves

D496 lines

Families hereSemi-Slav Defense

  • Meran Variation, Blumenfeld Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb521 moves
  • Meran Variation, Rabinovich Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Ng422 moves
  • Meran Variation, Rellstab Attack1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O Qd5 14. Qe2 Ba6 15. Bg529 moves
  • Meran Variation, Sozin Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe522 moves
  • Meran Variation, Sozin Variation1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. O-O25 moves
  • Meran Variation, Stahlberg Variation1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5 cxd4 11. Nxb5 Nxe5 12. Nxe5 axb5 13. Qf325 moves

D506 lines

Families hereQueen's Gambit Declined

  • Been-Koomen Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c58 moves
  • Modern Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg57 moves
  • Pseudo-Tarrasch Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd59 moves
  • Pseudo-Tarrasch Variation, Canal Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 Qb610 moves
  • Pseudo-Tarrasch Variation, Primitive Pillsbury Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Qxd411 moves
  • Semi-Tarrasch Defense, Krause Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 5. Nf3 cxd4 6. Nxd4 e5 7. Ndb5 a6 8. Qa415 moves

D517 lines

Families hereQueen's Gambit Declined

  • Alekhine Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. e411 moves
  • Capablanca Variation, Anti-Cambridge Springs Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. a311 moves
  • Manhattan Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb410 moves
  • Modern Variation, Knight Defense1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd78 moves
  • Modern Variation, Knight Defense1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e39 moves
  • Modern Variation, Knight Defense1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c610 moves
  • Rochlin Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. Nf3 c6 6. Rc1 Qa5 7. Bd213 moves

D528 lines

Families hereQueen's Gambit Declined

  • Queen's Gambit Declined1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e311 moves
  • Cambridge Springs Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa512 moves
  • Cambridge Springs Defense1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd513 moves
  • Cambridge Springs Defense, Argentine Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bh417 moves
  • Cambridge Springs Defense, Bogoljubow Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc215 moves
  • Cambridge Springs Defense, Capablanca Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Bxf613 moves
  • Cambridge Springs Defense, Rubinstein Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc414 moves
  • Cambridge Springs Defense, Yugoslav Variation1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd514 moves

D539 lines

Families hereQueen's Gambit Declined

  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be78 moves
  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf39 moves
  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 c6 6. e3 dxc4 7. Bxc413 moves
  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg5 Be710 moves
  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg5 Be7 6. e411 moves
  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O12 moves
  • Lasker Defense1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 Ne410 moves
  • Modern Variation, Heral Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf69 moves
  • Uhlmann Variation1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. Rc1 dxc414 moves

D541 lines

Families hereQueen's Gambit Declined

  • Neo-Orthodox Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc111 moves

D556 lines

Families hereQueen's Gambit Declined

  • Anti-Tartakower Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h6 7. Bxf613 moves
  • Anti-Tartakower Variation, Petrosian Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc421 moves
  • Modern Variation, Normal Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e311 moves
  • Neo-Orthodox Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 h612 moves
  • Neo-Orthodox Variation, Main Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e313 moves
  • Pillsbury Attack1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 Be7 7. e3 O-O 8. Bd3 Bb7 9. Ne517 moves

D565 lines

Families hereQueen's Gambit Declined

  • Queen's Gambit Declined1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O 7. Rc1 h6 8. Bh415 moves
  • Lasker Defense1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne414 moves
  • Lasker Defense1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nc6 5. Bg5 Be7 6. e3 O-O 7. Rc1 h6 8. Bh4 Ne416 moves
  • Lasker Defense, Russian Variation1. 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. Qc2 Nf6 10. Bd3 dxc4 11. Bxc4 c5 12. O-O Nc6 13. Rfd1 Bd726 moves
  • Lasker Defense, Teichmann Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Qc217 moves

D573 lines

Families hereQueen's Gambit Declined

  • Lasker Defense, Bernstein Variation1. 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 Qd622 moves
  • Lasker Defense, Bernstein Variation, Mar del Plata Gambit1. 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 Be624 moves
  • Lasker Defense, Main Line1. 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. bxc319 moves

D582 lines

Families hereQueen's Gambit Declined

  • Tartakower Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b614 moves
  • Tartakower Defense, Exchange Variation1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 exd516 moves

D592 lines

Families hereQueen's Gambit Declined

  • Tartakower Defense1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Nxd5 exd5 11. Rc1 Be622 moves
  • Tartakower Defense, Makogonov Exchange Variation1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. cxd5 Nxd516 moves

D604 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd712 moves
  • Orthodox Defense, Botvinnik Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd313 moves
  • Orthodox Defense, Botvinnik Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Bd3 c614 moves
  • Orthodox Defense, Rauzer Variation1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qb313 moves

D616 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc213 moves
  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c514 moves
  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c614 moves
  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c6 8. a315 moves
  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 a6 8. cxd5 exd5 9. Bd3 Re818 moves
  • Orthodox Defense, Rubinstein Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c6 8. Rd1 a616 moves

D621 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Rubinstein Variation, Flohr Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 c5 8. cxd515 moves

D6310 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Capablanca Variation1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bb517 moves
  • Orthodox Defense, Henneberger Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a614 moves
  • Orthodox Defense, Henneberger Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c515 moves
  • Orthodox Defense, Henneberger Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c5 c616 moves
  • Orthodox Defense, Henneberger Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. c5 c6 9. Bd317 moves
  • Orthodox Defense, Main Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc113 moves
  • Orthodox Defense, Main Line1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c614 moves
  • Orthodox Defense, Main Line1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 h6 8. Bh4 c516 moves
  • Orthodox Defense, Pillsbury Variation1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 b6 8. cxd5 exd5 9. Bd317 moves
  • Orthodox Defense, Swiss, Carlsbad Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 a6 8. cxd515 moves

D644 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Rubinstein Attack1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Nf3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. a3 a6 9. Qc217 moves
  • Orthodox Defense, Rubinstein Attack1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc215 moves
  • Orthodox Defense, Rubinstein Attack1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a616 moves
  • Orthodox Defense, Rubinstein Attack1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 Ne416 moves

D652 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Rubinstein Attack1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd517 moves
  • Orthodox Defense, Rubinstein Attack1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Qc2 a6 9. cxd5 exd5 10. Bd319 moves

D663 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Bd3 Line1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd315 moves
  • Orthodox Defense, Bd3 Line1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 h6 9. Bh417 moves
  • Orthodox Defense, Fianchetto Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c6 5. Nf3 Be7 6. e3 Nbd7 7. Rc1 O-O 8. Bd3 dxc4 9. Bxc4 b518 moves

D675 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Alekhine Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. Ne421 moves
  • Orthodox Defense, Bd3 Line1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe720 moves
  • Orthodox Defense, Capablanca System1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd518 moves
  • Orthodox Defense, Janowski Variation1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. h419 moves
  • Orthodox Defense, Main Line1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O21 moves

D683 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Classical Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e524 moves
  • Orthodox Defense, Classical Variation1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qb125 moves
  • Orthodox Defense, Classical Variation1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. Qc225 moves

D691 lines

Families hereQueen's Gambit Declined

  • Orthodox Defense, Classical Variation1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5 Nxe5 14. Nxe5 Qxe528 moves

D703 lines

Families hereNeo-Grünfeld Defense

  • Goglidze Attack1. d4 Nf6 2. c4 g6 3. f3 d56 moves
  • with Nf31. d4 Nf6 2. c4 g6 3. Nf3 d56 moves
  • with g31. d4 Nf6 2. c4 g6 3. g3 d56 moves

D712 lines

Families hereNeo-Grünfeld Defense

  • Exchange Variation1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd510 moves
  • Exchange Variation1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 d5 5. cxd5 Nxd5 6. Nf311 moves

D721 lines

Families hereNeo-Grünfeld Defense

  • with g31. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5 6. e4 Nb6 7. Ne213 moves

D731 lines

Families hereNeo-Grünfeld Defense

  • with g31. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf39 moves

D741 lines

Families hereNeo-Grünfeld Defense

  • Delayed Exchange Variation1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O13 moves

D752 lines

Families hereNeo-Grünfeld Defense

  • Delayed Exchange Variation1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d5 6. cxd5 Nxd5 7. Bg2 c5 8. O-O15 moves
  • Delayed Exchange Variation1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O c5 8. dxc515 moves

D761 lines

Families hereNeo-Grünfeld Defense

  • Delayed Exchange Variation1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb614 moves

D773 lines

Families hereNeo-Grünfeld Defense

  • Classical Variation1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c411 moves
  • Classical Variation, Modern Defense1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc412 moves
  • Classical Variation, Polgar Variation1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 Nc612 moves

D781 lines

Families hereNeo-Grünfeld Defense

  • Classical Variation, Original Defense1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d512 moves

D791 lines

Families hereNeo-Grünfeld Defense

  • Ultra-Delayed Exchange Variation1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd514 moves

D807 lines

Families hereGrünfeld Defense

  • Grünfeld Defense1. d4 Nf6 2. c4 g6 3. Nc3 d56 moves
  • Gibbon Gambit1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. g47 moves
  • Lundin Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 Ne4 5. Nxe4 dxe4 6. Qd2 c512 moves
  • Lutikov Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f37 moves
  • Lutikov Variation, Murrey Attack1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. f3 c5 5. cxd5 Nxd5 6. Na411 moves
  • Stockholm Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg57 moves
  • Zaitsev Gambit1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. h47 moves

D811 lines

Families hereGrünfeld Defense

  • Russian Variation, Accelerated Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb37 moves

D821 lines

Families hereGrünfeld Defense

  • Brinckmann Attack1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf47 moves

D834 lines

Families hereGrünfeld Defense

  • Brinckmann Attack, Grünfeld Gambit1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O10 moves
  • Brinckmann Attack, Grünfeld Gambit, Botvinnik Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 c5 7. dxc5 Be614 moves
  • Brinckmann Attack, Grünfeld Gambit, Capablanca Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc111 moves
  • Brinckmann Attack, Reshevsky Gambit1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 O-O 6. e3 c5 7. dxc5 Qa514 moves

D841 lines

Families hereGrünfeld Defense

  • Brinckmann Attack, Grünfeld Gambit Accepted1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc715 moves

D857 lines

Families hereGrünfeld Defense

  • Exchange Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd58 moves
  • Exchange Variation, Modern Exchange Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf313 moves
  • Exchange Variation, Modern Exchange Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c514 moves
  • Exchange Variation, Modern Exchange Variation1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. Rb115 moves
  • Exchange Variation, Modern Exchange Variation, Kramnik's Line1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 c5 8. h315 moves
  • Exchange Variation, Modern Exchange Variation, Pawn Grab Line1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 Nc6 10. d5 Bxc3+20 moves
  • Exchange Variation, Nadanian Attack1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Na49 moves

D865 lines

Families hereGrünfeld Defense

  • Exchange Variation, Classical Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc413 moves
  • Exchange Variation, Larsen Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd716 moves
  • Exchange Variation, Larsen Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 9. O-O b618 moves
  • Exchange Variation, Simagin's Improved Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Nc616 moves
  • Exchange Variation, Simagin's Lesser Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 b616 moves

D872 lines

Families hereGrünfeld Defense

  • Exchange Variation, Seville Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bxf7+23 moves
  • Exchange Variation, Spassky Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O16 moves

D881 lines

Families hereGrünfeld Defense

  • Exchange Variation, Spassky Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O cxd4 11. cxd421 moves

D892 lines

Families hereGrünfeld Defense

  • Exchange Variation, Sokolsky Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O 9. O-O Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be6 14. d527 moves
  • Exchange Variation, Spassky Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Bg4 11. f3 Na5 12. Bd3 cxd4 13. cxd4 Be626 moves

D903 lines

Families hereGrünfeld Defense

  • Flohr Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qa4+9 moves
  • Three Knights Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf37 moves
  • Three Knights Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg78 moves

D911 lines

Families hereGrünfeld Defense

  • Three Knights Variation, Petrosian System1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg59 moves

D921 lines

Families hereGrünfeld Defense

  • Three Knights Variation, Hungarian Attack1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf49 moves

D931 lines

Families hereGrünfeld Defense

  • Three Knights Variation, Hungarian Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e311 moves

D946 lines

Families hereGrünfeld Defense

  • Flohr Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bf514 moves
  • Makogonov Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. b411 moves
  • Opocensky Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd211 moves
  • Smyslov Defense1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 g6 5. Nf3 Bg7 6. Bd3 O-O 7. O-O Bg414 moves
  • Three Knights Variation, Burille Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e39 moves
  • Three Knights Variation, Paris Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Bd311 moves

D953 lines

Families hereGrünfeld Defense

  • Botvinnik Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 e612 moves
  • Pachman Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. Qb3 dxc4 6. Bxc4 O-O 7. Nf3 Nbd7 8. Ng515 moves
  • Three Knights Variation, Vienna Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb311 moves

D961 lines

Families hereGrünfeld Defense

  • Russian Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb39 moves

D976 lines

Families hereGrünfeld Defense

  • Russian Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e413 moves
  • Russian Variation, Byrne Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Nc614 moves
  • Russian Variation, Hungarian Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 a614 moves
  • Russian Variation, Levenfish Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 b614 moves
  • Russian Variation, Prins Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Na614 moves
  • Russian Variation, Szabo Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 c614 moves

D982 lines

Families hereGrünfeld Defense

  • Russian Variation, Keres Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Be2 Nb6 10. Qd3 Nc6 11. O-O-O21 moves
  • Russian Variation, Smyslov Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg414 moves

D992 lines

Families hereGrünfeld Defense

  • Russian Variation, Smyslov Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb317 moves
  • Russian Variation, Yugoslav Variation1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 c518 moves

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