ecocodes
Volume A · Flank openings‹ A61A63 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

A62 Benoni Defense: Fianchetto Variation

A62 holds a single named line. It leaves E00 (Catalan Opening) with 3...c5 4.d5 exd5 5.cxd5 d6 6.Nc3 g6 7.Bg2 Bg7 8.Nf3 O-O. White, to move in that position, has 38 legal moves, the fourth-highest count of the 23 Benoni Defense codes. Of all other reference positions, the board of A72 (Classical Variation) comes closest, four squares apart.

Score sheet
#WhiteBlack
1d4Nf6
2c4e6
3g3c5
4d5exd5
5cxd5d6
6Nc3g6
7Bg2Bg7
8Nf3O-O

The move that completes A62

The reference line of A63 plays all of these moves and continues beyond them; A62 is the position reached at 8...O-O.

  1. 8...O-O Black castles kingside, opening a line for the queen on d8, guarding the bishop on g7.

The road to A62

  1. 1.d4 … 1...Nf6two earlier stops: A40, A45
  2. 2.c4A50 Normal Variation
  3. 3.g3E00 Catalan Opening
  4. 8...O-OA62

The position after 8...O-O

White has brought out the knight on c3, knight on f3 and bishop on g2; Black the knight on f6 and bishop on g7. White has a half-open c-file; Black a half-open e-file.

WhiteBlackMaterial (pawn units)3838Minor pieces developed32Moves spent on pawns55Pawns on d4, e4, d5, e510Squares attacked in the other half75not castledcastled kingside, move 8

Codes that branch off from A62

The reference lines of two other codes leave A62 from the position after 8...O-O, each with its own moves.

CodeMovesReference line
A639.O-O Nbd7Benoni Defense: Fianchetto Variation, Hastings Defense
A649.O-O a6 10.a4 Nbd7 11.Nd2 Re8Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line

Closest boards in other codes

CodeLineDiffers on
A68Benoni Defense: Four Pawns Attackseven squares: f1, e2, f2, g2, g3, e4, f4
A61Benoni Defenseeight squares: f1, g2, g3, g7, e8, f8, g8, h8
A69Benoni Defense: Four Pawns Attack, Main Lineeight squares: e2, f2, g2, g3, e4, f4, e8, f8
A73Benoni Defense: Classical Variation, Main Lineeight squares: e1, f1, g1, h1, e2, g2, g3, e4
E65King’s Indian Defense: Fianchetto Variation, Yugoslav Variationeight squares: e1, f1, g1, h1, c4, d4, d5, e7
E66King’s Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Lineeight squares: e1, f1, g1, h1, c4, c6, e7, b8
E67King’s Indian Defense: Fianchetto Variation, Debrecen Defenseeight squares: c4, d4, c5, d5, c7, d7, e7, b8

Where lines continue from here

Two named lines filed under other codes pass through the position after 8...O-O. All of them belong to the codes listed above.

Volume A

  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
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  62. 61
  63. 62
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  72. 71
  73. 72
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  95. 94
  96. 95
  97. 96
  98. 97
  99. 98
  100. 99

Open this line in the finderAll Benoni Defense codes