ecocodes
Volume B · Semi-open games‹ B31B33 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

B32 Sicilian Defense: Open

B32 holds 11 named lines, all under the name Sicilian Defense. It leaves B30 (Sicilian Defense: Old Sicilian) with 3.d4. Lines of 23 other codes continue from its position, the fifth-widest spread of the 80 Sicilian Defense codes. That final move, by the d-pawn, covers c5 and e5 and opens a line for the bishop on c1 and the queen on d1.

Score sheet
#WhiteBlack
1e4c5
2Nf3Nc6
3d4

Lines filed under B32

All 11 share their first five plies, the whole reference line and then split two ways at Black’s move 3.

NameAfter the shared startPliesAt the end
Sicilian Defense: Open(the shared start itself)5
Sicilian Defense: Franco-Sicilian Variation3...e66
Sicilian Defense: Open3...cxd46Black +1
Sicilian Defense: Open3...cxd4 4.Nxd47
Sicilian Defense: Accelerated Dragon3...cxd4 4.Nxd4 g68
Sicilian Defense: Flohr Variation3...cxd4 4.Nxd4 Qc78
Sicilian Defense: Godiva Variation3...cxd4 4.Nxd4 Qb68
Sicilian Defense: Löwenthal Variation3...cxd4 4.Nxd4 e58
Sicilian Defense: Nimzo-American Variation3...cxd4 4.Nxd4 d58
Sicilian Defense: Kalashnikov Variation3...cxd4 4.Nxd4 e5 5.Nb5 d610
Sicilian Defense: O’Kelly Variation, Maróczy Bind, Geller Line3...cxd4 4.Nxd4 a6 5.c4 e510

The road to B32

  1. 1.e4 … 1...c5two earlier stops: B00, B20
  2. 2.Nf3B27 Sicilian Defense
  3. 2...Nc6B30 Old Sicilian
  4. 3.d4B32

The position after 3.d4

White has brought out the knight on f3; Black the knight on c6. Black could capture with Nxd4, cxd4. Black is to move and has 27 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed11Moves spent on pawns21Pawns on d4, e4, d5, e520Squares attacked in the other half82not castlednot castled

Codes that branch off from B32

The reference lines of three other codes leave B32 from two of its named positions; “From” gives the last part of that position’s name.

CodeFromMovesReference line
B33Open4...Nf6Sicilian Defense: Open
B34Accelerated Dragon5.Nxc6Sicilian Defense: Accelerated Dragon, Exchange Variation
B36Accelerated Dragon5.c4Sicilian Defense: Accelerated Dragon, Maróczy Bind

Closest boards in other codes

CodeLineDiffers on
B27Sicilian Defensefour squares: d2, d4, c6, b8
B12Caro-Kann Defensefive squares: g1, f3, c5, c6, b8
B44Sicilian Defense: Taimanov Variationfive squares: f3, d4, c5, e6, e7
C45Scotch Gamefive squares: f3, d4, c5, c7, e7
A43Benoni Defense: Old Benonisix squares: g1, e2, f3, e4, c6, b8
B20Sicilian Defensesix squares: g1, d2, f3, d4, c6, b8
B28Sicilian Defense: O’Kelly Variationsix squares: d2, d4, a6, c6, a7, b8

Where lines continue from here

Besides the codes above, they belong to B35, B37, B38, B39, B56, B57, B58, B59, B60, B61, B62, B64, B67, B68, B69, B72, B73, B74, B88, B89.

Volume B

  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 Sicilian Defense codes