ecocodes
Volume D · Closed and semi-closed games‹ D52D54 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

D53 Queen’s Gambit Declined

D53 holds nine named lines, all under the name Queen’s Gambit. It leaves D50 (Queen’s Gambit Declined: Modern Variation) with 4...Be7. Lines filed under D37, D60, D63, D64 and D68 reach one of its named positions by a different move order. Material is no longer level at the end of four of its lines; the widest gap, three pawns in White’s favour, comes in Queen’s Gambit Declined: Modern Variation, Heral Variation.

Score sheet
#WhiteBlack
1d4d5
2c4e6
3Nc3Nf6
4Bg5Be7

The move that completes D53

The reference line of D61 plays all of these moves and continues beyond them; D53 is the position reached at 4...Be7.

  1. 4...Be7 The bishop leaves f8 for e7, opening a line for the rook on h8.

Lines filed under D53

All nine share the start 1.d4 and then split two ways at Black’s move 1.

NameAfter the shared startPliesAt the end
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be78
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf39
Queen’s Gambit Declined: Modern Variation, Heral Variation1...d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Bxf69White +3
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 dxc4 5.Bg5 Be710Black +1
Queen’s Gambit Declined: Lasker Defense1...Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 Ne410
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 dxc4 5.Bg5 Be7 6.e411Black +1
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Nc6 5.Bg5 Be7 6.e3 O-O12Black castled
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 c6 6.e3 dxc4 7.Bxc413
Queen’s Gambit Declined: Uhlmann Variation1...d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.Rc1 dxc414Black +1, Black castled

The road to D53

  1. 1.d4 … 3.Nc3five earlier stops: A40, D00, D06, D30, D31
  2. 3...Nf6D35 Normal Defense
  3. 4.Bg5D50 Modern Variation
  4. 4...Be7D53

The position after 4...Be7

White has brought out the knight on c3 and bishop on g5; Black the knight on f6 and bishop on e7. White could capture with Bxf6, Nxd5, cxd5. White is to move and has 38 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed22Moves spent on pawns22Pawns on d4, e4, d5, e511Squares attacked in the other half65not castlednot castled

Codes that branch off from D53

The reference lines of two other codes leave D53 from two of its named positions; “From” gives the last part of that position’s name.

CodeFromMovesReference line
D54Queen’s Gambit Declined5.e3 O-O 6.Rc1Queen’s Gambit Declined: Neo-Orthodox Variation
D55Queen’s Gambit Declined5...O-O 6.e3Queen’s Gambit Declined: Modern Variation, Normal Line

Closest boards in other codes

CodeLineDiffers on
D35Queen’s Gambit Declined: Normal Defensefour squares: c1, g5, e7, f8
D51Queen’s Gambit Declined: Modern Variation, Knight Defensefour squares: d7, e7, b8, f8
E30Nimzo-Indian Defense: Leningrad Variationfour squares: b4, d5, d7, e7
D01Richter-Veresov Attackfive squares: c2, c4, e6, e7, f8
B14Caro-Kann Defense: Panov Attacksix squares: c1, e2, g5, c7, e7, f8
C12French Defense, Classical, 4. Bg5six squares: c2, e2, c4, e4, e7, f8
D31Queen’s Gambit Declined: Queen’s Knight Variationsix squares: c1, g5, f6, e7, f8, g8

Where lines continue from here

Twenty named lines filed under other codes pass through the position after 4...Be7. Besides the codes above, they belong to D56, D57, D61, D63, D66, D67, D68, D69.

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 Gambit Declined is also reached inside D37 Queen’s Gambit Declined: Miles Variation, whose order is 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5.
  • Queen’s Gambit Declined is also reached inside D60 Queen’s Gambit Declined: Orthodox Defense, Rauzer Variation, whose order is 1.d4 d5 2.Nf3 Nf6 3.c4 e6 4.Nc3 Be7 5.Bg5.
  • Queen’s Gambit Declined is also reached inside D63 Queen’s Gambit Declined: Orthodox Defense, Capablanca Variation, whose order is 1.Nf3 d5 2.d4 Nf6 3.c4 e6 4.Nc3 Be7 5.Bg5.
  • Queen’s Gambit Declined is also reached inside D64 Queen’s Gambit Declined: Orthodox Defense, Rubinstein Attack, whose order is 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 Be7 5.Bg5.
  • Queen’s Gambit Declined is also reached inside D68 Queen’s Gambit Declined: Orthodox Defense, Classical Variation, whose order is 1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Be7 5.Bg5.

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