ecocodes
a1b2c3d4e5f6g7h8
After 3...b6 · White to move

Queen’s Indian Defense

The list files 73 lines under the name Queen’s Indian Defense, spread over eight codes (E12–E19). E14 alone holds 22 of them. From the starting position of Queen’s Indian Defense, the most-travelled continuation is 4.g3, with 31 lines. The deepest, Queen’s Indian Defense: Spassky System3, runs to 9...Nxd5. At the end of four lines one side is ahead on material; three names contain the word Gambit.

Score sheet
#WhiteBlack
1d4Nf6
2c4e6
3Nf3b6

Where the lines split

Fifty-six of the 73 lines continue from 3...b6; the bars show how many take each next move, and the indented rows the most common reply. The other 16 reach the opening by a different move order.

  1. 4.g331
    1. 4...Bb723
    2. 4...Ba67
  2. 4.a313
    1. 4...Bb711
    2. 4...Ba61
  3. 4.e37
    1. 4...Bb76
  4. 4.Nc34
    1. 4...Bb72
    2. 4...Bb41
  5. 4.Bf41

Codes holding Queen’s Indian Defense lines

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
CodeReference lineLinesLongest line (plies)
E12Queen’s Indian Defense18Queen’s Indian Defense: Kasparov Variation, Botvinnik Attack (14)
E13Queen’s Indian Defense: Kasparov Variation1Queen’s Indian Defense: Kasparov Variation (12)
E14Queen’s Indian Defense: Spassky System22Queen’s Indian Defense: Spassky System3 (18)
E15Queen’s Indian Defense: Fianchetto Variation12Queen’s Indian Defense: Buerger Variation (13)
E16Queen’s Indian Defense: Capablanca Variation8Queen’s Indian Defense: Riumin Variation (16)
E17Queen’s Indian Defense: Traditional Variation8Queen’s Indian Defense: Classical Variation, Polugaevsky Gambit (15)
E18Queen’s Indian Defense: Classical Variation, Traditional Variation3Queen’s Indian Defense: Classical Variation, Tiviakov Defense (14)
E19Queen’s Indian Defense: Classical Variation, Traditional Variation, Main Line1Queen’s Indian Defense: Classical Variation, Traditional Variation, Main Line (17)

Longest Queen’s Indian Defense lines

  1. Queen’s Indian Defense: Spassky System3 18
  2. Queen’s Indian Defense, with e3 17
  3. Queen’s Indian Defense, with e3 17
  4. Queen’s Indian Defense, with e3 17
  5. Queen’s Indian Defense: Averbakh Variation 17
  6. Queen’s Indian Defense: Classical Variation, Traditional Variation, Main Line 17
  7. Queen’s Indian Defense: Riumin Variation 16
  8. Queen’s Indian Defense, with e3 15