ecocodes
Volume D · Closed and semi-closed games‹ D55D57 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

D56 Queen’s Gambit Declined: Lasker Defense

D56 holds five named lines, all under the name Queen’s Gambit. It leaves D55 (Queen’s Gambit Declined: Neo-Orthodox Variation, Main Line) with 7...Ne4. Its deepest line, Queen’s Gambit Declined: Lasker Defense, Russian Variation, runs to 13...Bd7, the second-longest of the 44 Queen’s Gambit codes. Lines filed under D57 reach one of its named positions by a different move order.

Score sheet
#WhiteBlack
1d4d5
2c4e6
3Nc3Be7
4Nf3Nf6
5Bg5h6
6Bh4O-O
7e3Ne4

The move that completes D56

The reference line of D57 plays all of these moves and continues beyond them; D56 is the position reached at 7...Ne4.

  1. 7...Ne4 The knight goes from f6 to e4, opening a line for the bishop on e7, attacking the knight on c3.

Lines filed under D56

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

NameAfter the shared startPliesAt the end
Queen’s Gambit Declined: Lasker Defense1...d5 2.c4 e6 3.Nc3 Be7 4.Nf3 Nf6 5.Bg5 h6 6.Bh4 O-O 7.e3 Ne414Black castled
Queen’s Gambit Declined1...d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Nc6 5.Bg5 Be7 6.e3 O-O 7.Rc1 h6 8.Bh415Black castled
Queen’s Gambit Declined: Lasker Defense1...d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Nc6 5.Bg5 Be7 6.e3 O-O 7.Rc1 h6 8.Bh4 Ne416Black castled
Queen’s Gambit Declined: Lasker Defense, Teichmann Variation1...Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 Ne4 8.Bxe7 Qxe7 9.Qc217Black castled
Queen’s Gambit Declined: Lasker Defense, Russian Variation1...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 Bd726both castled

The road to D56

Two of the eight named positions on the way are reached by a move order other than their own.

  1. 1.d4 … 4...Nf6six earlier stops: A40, D00, D06, D30, D31
  2. 5.Bg5D53 Queen’s Gambit Declined by another order
  3. 7.e3D55 Main Line by another order
  4. 7...Ne4D56

The position after 7...Ne4

White has brought out the knight on c3, knight on f3 and bishop on h4; Black the knight on e4 and bishop on e7. White could capture with Bxe7, Nxd5, Nxe4, cxd5. White is to move and has 37 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed32Moves spent on pawns33Pawns on d4, e4, d5, e511Squares attacked in the other half79not castledcastled kingside, move 6

Codes that branch off from D56

The reference lines of one other code leave D56 from the position after 7...Ne4, each with its own moves.

CodeMovesReference line
D578.Bxe7 Qxe7 9.cxd5 Nxc3 10.bxc3Queen’s Gambit Declined: Lasker Defense, Main Line

Closest boards in other codes

CodeLineDiffers on
D58Queen’s Gambit Declined: Tartakower Defensefour squares: e4, b6, f6, b7
D59Queen’s Gambit Declined: Tartakower Defense, Makogonov Exchange Variationfive squares: c4, e4, d5, b6, b7
D60Queen’s Gambit Declined: Orthodox Defenseeight squares: e4, h4, g5, f6, h6, d7, h7, b8
E51Nimzo-Indian Defense: Normal Variation, Ragozin Variationeight squares: c1, b4, e4, h4, f6, h6, e7, h7
D54Queen’s Gambit Declined: Neo-Orthodox Variationten squares: a1, c1, g1, f3, e4, h4, g5, f6 …
D61Queen’s Gambit Declined: Orthodox Defense, Rubinstein Variationten squares: d1, c2, e4, h4, g5, f6, h6, d7 …
D63Queen’s Gambit Declined: Orthodox Defense, Main Lineten squares: a1, c1, e4, h4, g5, f6, h6, d7 …

Where lines continue from here

Three named lines filed under other codes pass through the position after 7...Ne4. All of them belong to the codes listed above.

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: Lasker Defense is also reached inside D57 Queen’s Gambit Declined: Lasker Defense, Bernstein Variation, whose order is 1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Bg5 Be7 5.e3 h6 6.Bh4 O-O 7.Nf3 Ne4.

Open this line in the finderAll Queen’s Gambit codes