ecocodes
Volume C · Open games and the French Defense‹ C83C85 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

C84 Ruy Lopez: Closed

C84 holds six named lines, all under the name Ruy Lopez. It leaves C78 (Ruy Lopez: Morphy Defense) with 5...Be7. Lines of 15 other codes continue from its position, the fourth-widest spread of the 40 Ruy Lopez codes. Material is no longer level at the end of two of its lines; the widest gap, two pawns in Black’s favour, comes in Ruy Lopez: Closed, Center Attack, Basque Gambit.

Score sheet
#WhiteBlack
1e4e5
2Nf3Nc6
3Bb5a6
4Ba4Nf6
5O-OBe7

The move that completes C84

The reference line of C85 plays all of these moves and continues beyond them; C84 is the position reached at 5...Be7.

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

Lines filed under C84

All six share their first ten plies, the whole reference line and then split three ways at White’s move 6.

NameAfter the shared startPliesAt the end
Ruy Lopez: Closed(the shared start itself)10White castled
Ruy Lopez: Closed, Center Attack6.d411White castled
Ruy Lopez: Closed, Martinez Variation6.d311White castled
Ruy Lopez: Closed, Morphy Attack6.Nc311White castled
Ruy Lopez: Closed, Basque Gambit6.d4 exd4 7.e5 Ne4 8.c315Black +1, White castled
Ruy Lopez: Closed, Center Attack, Basque Gambit6.d4 exd4 7.e5 Ne4 8.c3 dxc316Black +2, White castled

The road to C84

  1. 1.e4 … 3.Bb5five earlier stops: B00, C20, C40, C44, C60
  2. 3...a6C70 Morphy Defense
  3. 5.O-OC78 Morphy Defense
  4. 5...Be7C84

The position after 5...Be7

White has brought out the knight on f3 and bishop on a4; Black the knight on c6, knight on f6 and bishop on e7. White could capture with Bxc6, Nxe5. White is to move and has 25 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed23Moves spent on pawns12Pawns on d4, e4, d5, e511Squares attacked in the other half66castled kingside, move 5not castled

Codes that branch off from C84

The reference lines of four other codes leave C84 from the position after 5...Be7, each with its own moves.

CodeMovesReference line
C856.Bxc6Ruy Lopez: Closed, Delayed Exchange
C866.Qe2Ruy Lopez: Closed, Worrall Attack
C876.Re1 d6Ruy Lopez: Closed, Averbakh Variation
C886.Re1 b5 7.Bb3Ruy Lopez: Closed

Closest boards in other codes

CodeLineDiffers on
C79Ruy Lopez: Morphy Defense, Steinitz Deferredfour squares: d6, d7, e7, f8
C80Ruy Lopez: Openfour squares: e4, f6, e7, f8
C72Ruy Lopez: Morphy Defense, Modern Steinitz Defensesix squares: d6, f6, d7, e7, f8, g8
C69Ruy Lopez: Exchange Variation, Normal Variationseven squares: a4, c6, f6, d7, e7, f8, g8
C66Ruy Lopez: Berlin Defense, Improved Steinitz Defenseeight squares: a4, b5, a6, d6, a7, d7, e7, f8
C67Ruy Lopez: Berlin Defense, Rio Gambit Acceptedeight squares: a4, e4, b5, a6, f6, a7, e7, f8
C77Ruy Lopez: Morphy Defense, Anderssen Variationeight squares: e1, f1, g1, h1, d2, d3, e7, f8

Where lines continue from here

Besides the codes above, they belong to C89, C90, C91, C92, C93, C94, C95, C96, C97, C98, C99.

Volume C

  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

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