text: 1.d4 d5: Closed Game (D00–D69)
  1.d4 Nf6 2.c4 g6 with 3...d5: Grünfeld Defence (D70–D99)
  D00–D69
  1.d4 d5: Closed Game
  D00 Queen's Pawn Game (including Blackmar–Diemer Gambit, Halosar Trap and others)
  D01 Richter–Veresov Attack
  D02 Queen's Pawn Game, 2.Nf3 (including the London System)
  D03 Torre Attack, Tartakower Variation
  D04 Queen's Pawn Game, Colle System
  D05 Queen's Pawn Game, Zukertort Variation (including Colle System)
  D06 Queen's Gambit (including the Baltic Defence, Marshall Defence and Symmetrical Defence)
  D07 QGD, Chigorin Defence
  D08 QGD, Albin Countergambit and Lasker Trap
  D09 QGD, Albin Countergambit, 5.g3
  D10 QGD, Slav Defence
  D11 QGD, Slav Defence, 3.Nf3
  D12 QGD, Slav Defence, 4.e3 Bf5
  D13 QGD, Slav Defence, Exchange Variation
  D14 QGD, Slav Defence, Exchange Variation
  D15 QGD, Slav, 4.Nc3
  D16 QGD, Slav Accepted, Alapin Variation
  D17 QGD, Slav Defence, Czech Defence
  D18 QGD, Dutch Variation
  D19 QGD, Dutch Variation
  D20 Queen's Gambit Accepted without 3.Nf3 (Central Variation, Old Variation, and atypical moves by White)
  D21 QGA, 3.Nf3
  D22 QGA, Alekhine Defence (3...a6)
  D23 Queen's Gambit Accepted (3...Nf6)
  D24 QGA, 4.Nc3
  D25 QGA, 4.e3
  D26 QGA, Classical Variation
  D27 QGA, Classical Variation
  D28 QGA, Classical Variation 7.Qe2
  D29 QGA, Classical Variation 8...Bb7
  D30 Queen's Gambit Declined: Orthodox Defence