ecocodes
Volume E · Indian defenses‹ E96E98 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

E97 King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense

E97 holds six named lines, all under the name King’s Indian Defense. It leaves E94 (King’s Indian Defense: Orthodox Variation) with 7...Nc6. Black’s pieces and pawns attack six squares in White’s half, the second-highest count of the 39 King’s Indian Defense codes. Both kings have castled by the end of the reference line, White on move 7 and Black on move 5. None of its six lines contains a capture.

Score sheet
#WhiteBlack
1d4Nf6
2c4g6
3Nc3Bg7
4e4d6
5Nf3O-O
6Be2e5
7O-ONc6

The move that completes E97

The reference line of E98 plays all of these moves and continues beyond them; E97 is the position reached at 7...Nc6.

  1. 7...Nc6 The knight leaves b8 for c6, opening a line for the rook on a8.

Lines filed under E97

All six share their first 14 plies, the whole reference line.

NameAfter the shared startPliesAt the end
King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense(the shared start itself)14both castled
King’s Indian Defense: Orthodox Variation, Bayonet Attack8.d5 Ne7 9.b417both castled
King’s Indian Defense: Orthodox Variation, Korchnoi Attack8.d5 Ne7 9.Bd217both castled
King’s Indian Defense: Orthodox Variation, Modern System8.d5 Ne7 9.Nd217both castled
King’s Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov’s Line8.d5 Ne7 9.b4 Nh5 10.Re119both castled
King’s Indian Defense: Orthodox Variation, Bayonet Attack, Yepishin’s Line8.d5 Ne7 9.b4 Nh5 10.Qc219both castled

The road to E97

  1. 1.d4 … 6.Be2nine earlier stops: A40, A45, A50, E60, E61, E70, E90, E91
  2. 6...e5E92 Orthodox Variation
  3. 7.O-OE94 Orthodox Variation
  4. 7...Nc6E97

The position after 7...Nc6

White has brought out the knight on c3, knight on f3 and bishop on e2; Black the knight on c6, knight on f6 and bishop on g7. White could capture with Nxe5, dxe5. White is to move and has 35 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed33Moves spent on pawns33Pawns on d4, e4, d5, e521Squares attacked in the other half76castled kingside, move 7castled kingside, move 5

Codes that branch off from E97

The reference lines of one other code leave E97 from the position after 7...Nc6, each with its own moves.

CodeMovesReference line
E988.d5 Ne7 9.Ne1King’s Indian Defense: Orthodox Variation, Classical System

Closest boards in other codes

CodeLineDiffers on
E95King’s Indian Defense: Orthodox Variationfour squares: e1, f1, c6, d7
E68King’s Indian Defense: Fianchetto Variation, Classical Variationfive squares: e2, g2, g3, c6, d7
E92King’s Indian Defense: Orthodox Variationsix squares: e1, f1, g1, h1, c6, b8
A73Benoni Defense: Classical Variation, Main Lineeight squares: c4, d4, c5, d5, e5, c6, c7, b8
A89Dutch Defense: Leningrad Variation, Matulovic Variationeight squares: e2, g2, g3, e4, e5, f5, e7, f7
E63King’s Indian Defense: Fianchetto Variation, Panno Variationeight squares: e2, g2, g3, e4, e5, a6, a7, e7
E69King’s Indian Defense: Fianchetto Variation, Classical Main Lineeight squares: e2, g2, h2, g3, h3, c6, c7, d7

Where lines continue from here

Five named lines filed under other codes pass through the position after 7...Nc6. Besides the codes above, they belong to 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