ecocodes
Volume E · Indian defenses‹ E91E93 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

E92 King’s Indian Defense: Orthodox Variation

E92 holds five named lines, all under the name King’s Indian Defense. It leaves E91, a position of the same name, with 6...e5. That final move, by the e-pawn, covers d4 and f4 and opens a line for the queen on d8. Of all other reference positions, the board of E93 (Petrosian Variation, Normal Defense) comes closest, four squares apart.

Score sheet
#WhiteBlack
1d4Nf6
2c4g6
3Nc3Bg7
4e4d6
5Nf3O-O
6Be2e5

Lines filed under E92

All five share their first 12 plies, the whole reference line and then split three ways at White’s move 7.

NameAfter the shared startPliesAt the end
King’s Indian Defense: Orthodox Variation(the shared start itself)12Black castled
King’s Indian Defense: Exchange Variation7.dxe513White +1, Black castled
King’s Indian Defense: Orthodox Variation, Gligoric-Taimanov System7.Be313Black castled
King’s Indian Defense: Petrosian Variation7.d513Black castled
King’s Indian Defense: Petrosian Variation, Stein Defense7.d5 a514Black castled

The road to E92

  1. 1.d4 … 4...d6seven earlier stops: A40, A45, A50, E60, E61, E70
  2. 5.Nf3E90 Rare Defenses
  3. 6.Be2E91 Orthodox Variation
  4. 6...e5E92

The position after 6...e5

White has brought out the knight on c3, knight on f3 and bishop on e2; Black the knight on f6 and bishop on g7. White could capture with Nxe5, dxe5. White is to move and has 38 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed32Moves spent on pawns33Pawns on d4, e4, d5, e521Squares attacked in the other half75not castledcastled kingside, move 5

Codes that branch off from E92

The reference lines of two other codes leave E92 from two of its named positions; “From” gives the last part of that position’s name.

CodeFromMovesReference line
E93Petrosian Variation7...Nbd7King’s Indian Defense: Petrosian Variation, Normal Defense
E94Orthodox Variation7.O-OKing’s Indian Defense: Orthodox Variation

Closest boards in other codes

CodeLineDiffers on
E95King’s Indian Defense: Orthodox Variationfive squares: e1, g1, h1, d7, b8
A72Benoni Defense: Classical Variationsix squares: c4, d4, c5, d5, e5, c7
E77King’s Indian Defense: Four Pawns Attacksix squares: g1, f2, f3, f4, e5, e7
E78King’s Indian Defense: Four Pawns Attack, Fluid Attacksix squares: f2, f4, c5, e5, c7, e7
E97King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defensesix squares: e1, f1, g1, h1, c6, b8
D97Grünfeld Defense: Russian Variationseven squares: d1, f1, e2, c4, e5, d6, e7
E81King’s Indian Defense: Sämisch Variation, Normal Defenseseven squares: f1, g1, e2, f2, f3, e5, e7

Where lines continue from here

Nineteen named lines filed under other codes pass through the position after 6...e5. Besides the codes above, they belong to E95, E96, E97, E98, E99.

Volume E

  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

Open this line in the finderAll King’s Indian Defense codes