ecocodes
Volume E · Indian defenses‹ E06E08 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

E07 Catalan Opening: Closed

E07 holds two named lines, all under the name Catalan Opening. It leaves E06, a position of the same name, with 5...O-O 6.O-O Nbd7. At 12 plies, its reference line is the third-longest of the 10 Catalan Opening codes. White, to move in that position, has 34 legal moves, the fourth-highest count of the 10 Catalan Opening codes. Its deepest line, Catalan Opening: Closed, Botvinnik Variation, runs to 8.Qd3, the fourth-longest of the 10 Catalan Opening codes.

Score sheet
#WhiteBlack
1d4Nf6
2c4e6
3g3d5
4Bg2Be7
5Nf3O-O
6O-ONbd7

The move that completes E07

The reference line of E08 plays all of these moves and continues beyond them; E07 is the position reached at 6...Nbd7.

  1. 6...Nbd7 The knight leaves b8 for d7, opening a line for the rook on a8.

Lines filed under E07

Both share their first 12 plies, the whole reference line.

NameAfter the shared startPliesAt the end
Catalan Opening: Closed(the shared start itself)12both castled
Catalan Opening: Closed, Botvinnik Variation7.Nc3 c6 8.Qd315both castled

Catalan Opening: Closed, Botvinnik Variation

  1. 7.Nc3 The knight leaves b1 for c3, opening a line for the rook on a1.
  2. 7...c6 The c-pawn advances to c6, covering b5 and d5, opening a line for the queen on d8.
  3. 8.Qd3 The queen goes from d1 to d3, opening a line for the rook on f1, guarding the pawn on c4.

The road to E07

  1. 1.d4 … 3...d5five earlier stops: A40, A45, A50, E00
  2. 4.Bg2E01 Open Defense
  3. 5.Nf3E06 Closed
  4. 6...Nbd7E07

The position after 6...Nbd7

White has brought out the knight on f3 and bishop on g2; Black the knight on d7, knight on f6 and bishop on e7. White could capture with cxd5.

WhiteBlackMaterial (pawn units)3939Minor pieces developed23Moves spent on pawns32Pawns on d4, e4, d5, e511Squares attacked in the other half65castled kingside, move 6castled kingside, move 5

Codes that branch off from E07

The reference lines of one other code leave E07 from the position after 6...Nbd7, each with its own moves.

CodeMovesReference line
E087.Qc2Catalan Opening: Closed

Closest boards in other codes

CodeLineDiffers on
A93Dutch Defense: Stonewall Variation, Botvinnik Variationsix squares: b2, b3, f5, d7, f7, b8
A96Dutch Defense: Classical Variationsix squares: d5, f5, d6, d7, f7, b8
D77Neo-Grünfeld Defense: Classical Variationsix squares: e6, g6, d7, e7, g7, b8
E09Catalan Opening: Closed, Main Linesix squares: b1, d1, c2, d2, c6, c7
A14English Opening: Agincourt Defense, Neo-Catalan Declinedeight squares: d2, d4, d7, b8, e8, f8, g8, h8
A95Dutch Defense: Stonewall Variationeight squares: b1, c3, f5, c6, c7, d7, f7, b8
D78Neo-Grünfeld Defense: Classical Variation, Original Defenseeight squares: c6, e6, g6, c7, d7, e7, g7, b8

Where lines continue from here

Ten named lines filed under other codes pass through the position after 6...Nbd7. Besides the codes above, they belong to E09.

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

Other move orders

  • Catalan Opening: Closed is also reached inside E08 Catalan Opening: Closed, Spassky Gambit, whose order is 1.d4 Nf6 2.c4 e6 3.g3 Be7 4.Bg2 d5 5.Nf3 O-O 6.O-O Nbd7.
  • Catalan Opening: Closed is also reached inside E09 Catalan Opening: Closed Variation, Traditional Variation, whose order is 1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.g3 Be7 5.Bg2 O-O 6.O-O Nbd7.

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