ecocodes
Volume D · Closed and semi-closed games‹ D01D03 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

D02 Queen’s Pawn Game: Zukertort Variation

Also filed here: London System, Queen’s Gambit.

D02 holds 20 named lines from three openings, most of them (18) under Queen’s Pawn Game. It leaves D00 (Queen’s Pawn Game) with 2.Nf3. Lines of 11 other codes continue from its position, the third-widest spread of the 7 Queen’s Pawn Game codes. Black, to move in that position, has 27 legal moves, the second-lowest count of the 7 Queen’s Pawn Game codes. With 20 named lines it is the third-largest code of the 7 Queen’s Pawn Game codes.

Score sheet
#WhiteBlack
1d4d5
2Nf3

The move that completes D02

The reference line of D03 plays all of these moves and continues beyond them; D02 is the position reached at 2.Nf3.

  1. 2.Nf3 The knight leaves g1 for f3, opening a line for the rook on h1.

Lines filed under D02

They begin with two different first moves.

NameAfter the shared startPliesAt the end
Queen’s Pawn Game: Zukertort Variation1.d4 d5 2.Nf33
Queen’s Pawn Game: Anti-Torre1.Nf3 d5 2.d4 Bg44
Queen’s Pawn Game: Chigorin Variation1.d4 d5 2.Nf3 Nc64
Queen’s Pawn Game: Krause Variation1.d4 d5 2.Nf3 c54
Queen’s Pawn Game: Symmetrical Variation1.d4 d5 2.Nf3 Nf64
Queen’s Pawn Game: London System1.d4 d5 2.Nf3 Nf6 3.Bf45
Queen’s Pawn Game: London System, with e61.d4 d5 2.Nf3 e6 3.Bf45
Queen’s Pawn Game: Symmetrical Variation, Pseudo-Catalan1.d4 d5 2.Nf3 Nf6 3.g35
Queen’s Pawn Game: London System, with e61.d4 d5 2.Nf3 e6 3.Bf4 Nf66
Queen’s Pawn Game: Zilbermints Countergambit1.d4 d5 2.Nf3 Nf6 3.c4 b56
Queen’s Pawn Game: Chandler Gambit1.d4 d5 2.Nf3 c5 3.g3 cxd4 4.Bg27Black +1
Queen’s Pawn Game: London System1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e37
Queen’s Gambit Declined: Baltic Defense, Pseudo-Slav1.d4 d5 2.Nf3 Bf5 3.c4 e6 4.Nc3 c68
Queen’s Pawn Game: Levitsky Attack, Euwe Variation, Modern Line1.d4 d5 2.Nf3 c6 3.Bg5 h6 4.Bh4 Qb68
Queen’s Pawn Game: Symmetrical Variation, Pseudo-Catalan1.d4 d5 2.Nf3 Nf6 3.g3 c6 4.Bg2 Bg48
London System: Poisoned Pawn Variation1.d4 Nf6 2.Nf3 d5 3.Bf4 c5 4.e3 Qb6 5.Nc39
Queen’s Pawn Game: London System1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.Nbd29
Queen’s Pawn Game: London System, Pterodactyl Variation1.d4 g6 2.Nf3 Bg7 3.Bf4 c5 4.c3 cxd4 5.cxd4 Qa5+10check
Queen’s Pawn Game: Symmetrical Variation, Pseudo-Catalan1.Nf3 d5 2.g3 c6 3.Bg2 Nf6 4.O-O Bg4 5.d4 e610White castled
Queen’s Pawn Game: London System1.d4 d5 2.Nf3 Nf6 3.Bf4 c5 4.e3 Nc6 5.Nbd2 e6 6.c311

The road to D02

  1. 1.d4A40 Queen’s Pawn Game
  2. 1...d5D00 Queen’s Pawn Game
  3. 2.Nf3D02

The position after 2.Nf3

White has brought out the knight on f3; Black has not yet moved a knight or bishop.

WhiteBlackMaterial (pawn units)3939Minor pieces developed10Moves spent on pawns11Pawns on d4, e4, d5, e511Squares attacked in the other half44not castlednot castled

Codes that branch off from D02

The reference lines of two other codes leave D02 from the position after 2...Nf6, each with its own moves.

CodeMovesReference line
D033.Bg5Queen’s Pawn Game: Torre Attack
D043.e3Queen’s Pawn Game: Colle System

Closest boards in other codes

CodeLineDiffers on
A06Zukertort Openingtwo squares: d2, d4
D21Queen’s Gambit Accepted: Normal Variationthree squares: c2, c4, d5
A04Zukertort Openingfour squares: d2, d4, d5, d7
A07King’s Indian Attackfour squares: d2, g2, g3, d4
A09Réti Openingfour squares: c2, d2, c4, d4
A40Queen’s Pawn Gamefour squares: g1, f3, d5, d7
A41Queen’s Pawn Gamefour squares: g1, f3, d5, d6

Where lines continue from here

Besides the codes above, they belong to D05, D11, D45, D49, D60, D63, D64, D65, D67.

Volume D

  1. 00
  2. 01
  3. 02
  4. 03
  5. 04
  6. 05
  7. 06
  8. 07
  9. 08
  10. 09
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. 16
  18. 17
  19. 18
  20. 19
  21. 20
  22. 21
  23. 22
  24. 23
  25. 24
  26. 25
  27. 26
  28. 27
  29. 28
  30. 29
  31. 30
  32. 31
  33. 32
  34. 33
  35. 34
  36. 35
  37. 36
  38. 37
  39. 38
  40. 39
  41. 40
  42. 41
  43. 42
  44. 43
  45. 44
  46. 45
  47. 46
  48. 47
  49. 48
  50. 49
  51. 50
  52. 51
  53. 52
  54. 53
  55. 54
  56. 55
  57. 56
  58. 57
  59. 58
  60. 59
  61. 60
  62. 61
  63. 62
  64. 63
  65. 64
  66. 65
  67. 66
  68. 67
  69. 68
  70. 69
  71. 70
  72. 71
  73. 72
  74. 73
  75. 74
  76. 75
  77. 76
  78. 77
  79. 78
  80. 79
  81. 80
  82. 81
  83. 82
  84. 83
  85. 84
  86. 85
  87. 86
  88. 87
  89. 88
  90. 89
  91. 90
  92. 91
  93. 92
  94. 93
  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99

Other move orders

  • Queen’s Pawn Game: Symmetrical Variation is also reached inside D63 Queen’s Gambit Declined: Orthodox Defense, Capablanca Variation, whose order is 1.Nf3 d5 2.d4 Nf6.

Open this line in the finderAll Queen’s Pawn Game codes