ecocodes

E Indian defenses

Volume E spreads 367 named lines over its 100 codes, from nine openings. Of these, 365 open with 1.d4, and after that the commonest replies are 1...Nf6 (363), 1...e6 (1), 1...d5 (1). The busiest code is E14 with 22 lines; 30 codes hold a single line. The deepest line in the volume, King’s Indian Defense: Orthodox Variation, Classical System, Kozul Gambit (E98), runs to 14.c5.

The hundred codes of volume E

  1. E00Catalan Opening
  2. E01Catalan Opening
  3. E02Catalan Opening
  4. E03Catalan Opening
  5. E04Catalan Opening
  6. E05Catalan Opening
  7. E06Catalan Opening
  8. E07Catalan Opening
  9. E08Catalan Opening
  10. E09Catalan Opening
  11. E10Blumenfeld Countergambit
  12. E11Bogo-Indian Defense
  13. E12Queen’s Indian Defense
  14. E13Queen’s Indian Defense
  15. E14Queen’s Indian Defense
  16. E15Queen’s Indian Defense
  17. E16Queen’s Indian Defense
  18. E17Queen’s Indian Defense
  19. E18Queen’s Indian Defense
  20. E19Queen’s Indian Defense
  21. E20Nimzo-Indian Defense
  22. E21Nimzo-Indian Defense
  23. E22Nimzo-Indian Defense
  24. E23Nimzo-Indian Defense
  25. E24Nimzo-Indian Defense
  26. E25Nimzo-Indian Defense
  27. E26Nimzo-Indian Defense
  28. E27Nimzo-Indian Defense
  29. E28Nimzo-Indian Defense
  30. E29Nimzo-Indian Defense
  31. E30Nimzo-Indian Defense
  32. E31Nimzo-Indian Defense
  33. E32Nimzo-Indian Defense
  34. E33Nimzo-Indian Defense
  35. E34Nimzo-Indian Defense
  36. E35Nimzo-Indian Defense
  37. E36Nimzo-Indian Defense
  38. E37Nimzo-Indian Defense
  39. E38Nimzo-Indian Defense
  40. E39Nimzo-Indian Defense
  41. E40Nimzo-Indian Defense
  42. E41Nimzo-Indian Defense
  43. E42Nimzo-Indian Defense
  44. E43Nimzo-Indian Defense
  45. E44Nimzo-Indian Defense
  46. E45Nimzo-Indian Defense
  47. E46Nimzo-Indian Defense
  48. E47Nimzo-Indian Defense
  49. E48Nimzo-Indian Defense
  50. E49Nimzo-Indian Defense
  51. E50Nimzo-Indian Defense
  52. E51Nimzo-Indian Defense
  53. E52Nimzo-Indian Defense
  54. E53Nimzo-Indian Defense
  55. E54Nimzo-Indian Defense
  56. E55Nimzo-Indian Defense
  57. E56Nimzo-Indian Defense
  58. E57Nimzo-Indian Defense
  59. E58Nimzo-Indian Defense
  60. E59Nimzo-Indian Defense
  61. E60Indian Defense
  62. E61King’s Indian Defense
  63. E62King’s Indian Defense
  64. E63King’s Indian Defense
  65. E64King’s Indian Defense
  66. E65King’s Indian Defense
  67. E66King’s Indian Defense
  68. E67King’s Indian Defense
  69. E68King’s Indian Defense
  70. E69King’s Indian Defense
  71. E70King’s Indian Defense
  72. E71King’s Indian Defense
  73. E72King’s Indian Defense
  74. E73King’s Indian Defense
  75. E74King’s Indian Defense
  76. E75King’s Indian Defense
  77. E76King’s Indian Defense
  78. E77King’s Indian Defense
  79. E78King’s Indian Defense
  80. E79King’s Indian Defense
  81. E80King’s Indian Defense
  82. E81King’s Indian Defense
  83. E82King’s Indian Defense
  84. E83King’s Indian Defense
  85. E84King’s Indian Defense
  86. E85King’s Indian Defense
  87. E86King’s Indian Defense
  88. E87King’s Indian Defense
  89. E88King’s Indian Defense
  90. E89King’s Indian Defense
  91. E90King’s Indian Defense
  92. E91King’s Indian Defense
  93. E92King’s Indian Defense
  94. E93King’s Indian Defense
  95. E94King’s Indian Defense
  96. E95King’s Indian Defense
  97. E96King’s Indian Defense
  98. E97King’s Indian Defense
  99. E98King’s Indian Defense
  100. E99King’s Indian Defense

First moves

First moveLinesShare
1.d436599%
1.c410%
1.Nf310%

Openings with most lines here

  1. King’s Indian Defense 119
  2. Nimzo-Indian Defense 104
  3. Queen’s Indian Defense 73
  4. Catalan Opening 32
  5. Bogo-Indian Defense 21
  6. Indian Defense 12
  7. Blumenfeld Countergambit 4
  8. Grünfeld Defense 1
  9. Queen’s Pawn, Mengarini Attack 1

Every code in volume E

Each code’s reference line is its shortest named line; “Deepest” is the length in plies of its longest.

CodeReference lineMovesLinesDeepest
E00Catalan Opening1.d4 Nf6 2.c4 e6 3.g366
E01Catalan Opening: Open Defense1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2210
E02Catalan Opening: Open Defense1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc418
E03Catalan Opening: Open Defense1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Qxc4213
E04Catalan Opening: Open Defense1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3312
E05Catalan Opening: Open Defense, Classical Line1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3 Be7212
E06Catalan Opening: Closed1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3418
E07Catalan Opening: Closed1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7215
E08Catalan Opening: Closed1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O Nbd7 7.Qc2720
E09Catalan Opening: Closed, Main Line1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7 5.Bg2 O-O 6.O-O Nbd7 7.Qc2 c6 8.Nbd2623
E10Indian Defense: Anti-Nimzo-Indian1.d4 Nf6 2.c4 e6 3.Nf3712
E11Bogo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+2120
E12Queen’s Indian Defense1.d4 Nf6 2.c4 e6 3.Nf3 b61814
E13Queen’s Indian Defense: Kasparov Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb4 5.Bg5 h6 6.Bh4 Bb7112
E14Queen’s Indian Defense: Spassky System1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e32218
E15Queen’s Indian Defense: Fianchetto Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g31213
E16Queen’s Indian Defense: Capablanca Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+816
E17Queen’s Indian Defense: Traditional Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7815
E18Queen’s Indian Defense: Classical Variation, Traditional Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3314
E19Queen’s Indian Defense: Classical Variation, Traditional Variation, Main Line1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.O-O O-O 7.Nc3 Ne4 8.Qc2 Nxc3 9.Qxc3117
E20Nimzo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4716
E21Nimzo-Indian Defense: Three Knights Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3410
E22Nimzo-Indian Defense: Spielmann Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb317
E23Nimzo-Indian Defense: Spielmann Variation, Romanovsky Gambit1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6417
E24Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3216
E25Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.f3 d5 5.a3 Bxc3+ 6.bxc3 c5 7.cxd5316
E26Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 c5 6.e3212
E27Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3 O-O110
E28Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.a3 Bxc3+ 6.bxc3111
E29Nimzo-Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.a3 Bxc3+ 7.bxc3 O-O218
E30Nimzo-Indian Defense: Leningrad Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5212
E31Nimzo-Indian Defense: Leningrad Variation, Benoni Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Bg5 h6 5.Bh4 c5 6.d5 d6112
E32Nimzo-Indian Defense: Classical Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2312
E33Nimzo-Indian Defense: Classical Variation, Zurich Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6511
E34Nimzo-Indian Defense: Classical Variation, Noa Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5214
E35Nimzo-Indian Defense: Classical Variation, Noa Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.cxd5 exd5110
E36Nimzo-Indian Defense: Classical Variation, Noa Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3412
E37Nimzo-Indian Defense: Classical Variation, Noa Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 d5 5.a3 Bxc3+ 6.Qxc3 Ne4 7.Qc2316
E38Nimzo-Indian Defense: Classical Variation, Berlin Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5312
E39Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 c5 5.dxc5 O-O214
E40Nimzo-Indian Defense: Rubinstein System1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e328
E41Nimzo-Indian Defense: Rubinstein System1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5316
E42Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2313
E43Nimzo-Indian Defense: St. Petersburg Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b61218
E44Nimzo-Indian Defense: St. Petersburg Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2312
E45Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Ba6110
E46Nimzo-Indian Defense: Normal Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O312
E47Nimzo-Indian Defense: Normal Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd319
E48Nimzo-Indian Defense: Normal Variation, Classical Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5213
E49Nimzo-Indian Defense: Normal Variation, Botvinnik System1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.a3 Bxc3+ 7.bxc3113
E50Nimzo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf319
E51Nimzo-Indian Defense: Normal Variation, Ragozin Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5514
E52Nimzo-Indian Defense: Normal Variation, Schlechter Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 b6214
E53Nimzo-Indian Defense: Normal Variation, Gligoric System1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5314
E54Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4317
E55Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O dxc4 8.Bxc4 Nbd7116
E56Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6114
E57Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 dxc4 9.Bxc4 cxd4118
E58Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3117
E59Nimzo-Indian Defense: Normal Variation, Bernstein Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Bd3 d5 6.Nf3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4221
E60Indian Defense: West Indian Defense1.d4 Nf6 2.c4 g61412
E61King’s Indian Defense1.d4 Nf6 2.c4 g6 3.Nc3616
E62King’s Indian Defense: Fianchetto Variation, Delayed Fianchetto1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3714
E63King’s Indian Defense: Fianchetto Variation, Panno Variation1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 a6426
E64King’s Indian Defense: Fianchetto Variation, Pterodactyl Variation1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 c5 5.Bg2 Qa5+515
E65King’s Indian Defense: Fianchetto Variation, Yugoslav Variation1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O c5 7.Nc3216
E66King’s Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O c5 7.Nc3 Nc6 8.d5115
E67King’s Indian Defense: Fianchetto Variation, Debrecen Defense1.d4 Nf6 2.c4 g6 3.g3 Bg7 4.Bg2 O-O 5.Nc3 d6 6.Nf3 Nbd7214
E68King’s Indian Defense: Fianchetto Variation, Classical Variation1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nbd7 7.Nc3 e5 8.e4222
E69King’s Indian Defense: Fianchetto Variation, Classical Main Line1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.g3 O-O 5.Bg2 d6 6.O-O Nbd7 7.Nc3 e5 8.e4 c6 9.h3117
E70King’s Indian Defense: Normal Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e449
E71King’s Indian Defense: Makogonov Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3211
E72King’s Indian Defense: Normal Variation, Deferred Fianchetto1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.g3213
E73King’s Indian Defense: Normal Variation, Standard Development1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2914
E74King’s Indian Defense: Averbakh Variation, Benoni Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5313
E75King’s Indian Defense: Averbakh Variation, Main Line1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Bg5 c5 7.d5 e6114
E76King’s Indian Defense: Four Pawns Attack1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4313
E77King’s Indian Defense: Four Pawns Attack1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.f4419
E78King’s Indian Defense: Four Pawns Attack, Fluid Attack1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.Be2113
E79King’s Indian Defense: Four Pawns Attack, Exchange Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 O-O 6.Nf3 c5 7.Be2 cxd4 8.Nxd4 Nc6 9.Be3117
E80King’s Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f319
E81King’s Indian Defense: Sämisch Variation, Normal Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O917
E82King’s Indian Defense: Sämisch Variation, Double Fianchetto1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 b6112
E83King’s Indian Defense: Sämisch Variation, Yates Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6314
E84King’s Indian Defense: Sämisch Variation, Panno Main Line1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nc6 7.Nge2 a6 8.Qd2 Rb8116
E85King’s Indian Defense: Sämisch Variation, Orthodox Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5112
E86King’s Indian Defense: Sämisch Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.Nge2 c6114
E87King’s Indian Defense: Sämisch Variation, Closed Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5324
E88King’s Indian Defense: Sämisch Variation, Closed Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.d5 c6114
E89King’s Indian Defense: Sämisch Variation, Closed Variation, Main Line1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 e5 7.Nge2 c6 8.d5 cxd5116
E90King’s Indian Defense: Normal Variation, Rare Defenses1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3311
E91King’s Indian Defense: Orthodox Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2212
E92King’s Indian Defense: Orthodox Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5514
E93King’s Indian Defense: Petrosian Variation, Normal Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 Nbd7221
E94King’s Indian Defense: Orthodox Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O615
E95King’s Indian Defense: Orthodox Variation1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1115
E96King’s Indian Defense: Orthodox Variation, Positional Defense, Main Line1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7 8.Re1 c6 9.Bf1 a5118
E97King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6619
E98King’s Indian Defense: Orthodox Variation, Classical System1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1327
E99King’s Indian Defense: Orthodox Variation, Classical System, Traditional Line1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5221