ecocodes
Volume B · Semi-open games‹ B92B94 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

B93 Sicilian Defense: Najdorf Variation, Amsterdam Variation

B93 holds a single named line. It leaves B90 (Sicilian Defense: Najdorf Variation) with 6.f4. That final move, by the f-pawn, covers e5 and g5. Of all other reference positions, the board of B71 (Dragon Variation, Levenfish Variation) comes closest, four squares apart.

Score sheet
#WhiteBlack
1e4c5
2Nf3d6
3d4cxd4
4Nxd4Nf6
5Nc3a6
6f4

The road to B93

  1. 1.e4 … 4.Nxd4six earlier stops: B00, B20, B27, B50
  2. 4...Nf6B54 Main Line
  3. 5...a6B90 Najdorf Variation
  4. 6.f4B93

The position after 6.f4

White has brought out the knight on c3 and knight on d4; Black the knight on f6. White has a half-open d-file; Black a half-open c-file. Black could capture with Nxe4. Black is to move and has 30 legal moves.

WhiteBlackMaterial (pawn units)3838Minor pieces developed21Moves spent on pawns34Pawns on d4, e4, d5, e510Squares attacked in the other half93not castlednot castled

Codes that branch off from B93

The reference lines of one other code leave B93 from the position after 6.f4, each with its own moves.

CodeMovesReference line
B856...e6 7.Be2 Qc7 8.O-O Nc6Sicilian Defense: Scheveningen Variation, Classical Variation, Paulsen Variation

Closest boards in other codes

CodeLineDiffers on
B82Sicilian Defense: Scheveningen Variation, Matanovic Attackfour squares: a6, e6, a7, e7
B91Sicilian Defense: Najdorf Variation, Zagreb Variationfour squares: f2, g2, g3, f4
B92Sicilian Defense: Najdorf Variation, Opocensky Variationfour squares: f1, e2, f2, f4
B94Sicilian Defense: Najdorf Variationfour squares: c1, f2, f4, g5
B96Sicilian Defense: Najdorf Variationfour squares: c1, g5, e6, e7
B98Sicilian Defense: Najdorf Variationfive squares: c1, g5, e6, e7, f8
B56Sicilian Defense: Classical Variationsix squares: f2, f4, a6, c6, a7, b8

Where lines continue from here

One named line filed under other codes passes through the position after 6.f4. It belongs to the code listed above.

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
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  18. 17
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  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