ecocodes
Volume B · Semi-open games‹ B57B59 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

B58 Sicilian Defense: Classical Variation

B58 holds four named lines, all under the name Sicilian Defense. It leaves B56, a position of the same name, with 6.Be2. That final move, by the bishop, opens a line for the rook on h1. Of all other reference positions, the board of B57 (Classical Variation, Sozin Attack) comes closest, two squares apart.

Score sheet
#WhiteBlack
1e4c5
2Nf3d6
3d4cxd4
4Nxd4Nf6
5Nc3Nc6
6Be2

Lines filed under B58

All four share the start 1.e4 c5 2.Nf3 and then split two ways at Black’s move 2.

NameAfter the shared startPliesAt the end
Sicilian Defense: Classical Variation2...d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be211
Sicilian Defense: Boleslavsky Variation2...d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e512
Sicilian Defense: Boleslavsky Variation, Louma Variation2...Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nxc613White +3
Sicilian Defense: Classical Variation, Dragon Transfer2...d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Nxd4 7.Qxd4 g614

Sicilian Defense: Boleslavsky Variation

  1. 2...d6 The d-pawn advances to d6, covering c5 and e5, opening a line for the bishop on c8 and the queen on d8.
  2. 3.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
  3. 3...cxd4 The c-pawn takes the pawn on d4, covering c3 and e3.
  4. 4.Nxd4 The knight on f3 takes the pawn on d4, opening a line for the queen on d1.
  5. 4...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.

Sicilian Defense: Boleslavsky Variation, Louma Variation

  1. 2...Nc6 The knight leaves b8 for c6, opening a line for the rook on a8.
  2. 3.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
  3. 3...cxd4 The c-pawn takes the pawn on d4, covering c3 and e3.
  4. 4.Nxd4 The knight on f3 takes the pawn on d4, opening a line for the queen on d1, attacking the knight on c6.
  5. 4...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.

Sicilian Defense: Classical Variation, Dragon Transfer

  1. 2...d6 The d-pawn advances to d6, covering c5 and e5, opening a line for the bishop on c8 and the queen on d8.
  2. 3.d4 The d-pawn advances two squares to d4, covering c5 and e5, opening a line for the bishop on c1 and the queen on d1.
  3. 3...cxd4 The c-pawn takes the pawn on d4, covering c3 and e3.
  4. 4.Nxd4 The knight on f3 takes the pawn on d4, opening a line for the queen on d1.
  5. 4...Nf6 The knight leaves g8 for f6, opening a line for the rook on h8.

The road to B58

  1. 1.e4 … 4.Nxd4six earlier stops: B00, B20, B27, B50
  2. 4...Nf6B54 Main Line
  3. 5...Nc6B56 Classical Variation
  4. 6.Be2B58

The position after 6.Be2

White has brought out the knight on c3, knight on d4 and bishop on e2; Black the knight on c6 and knight on f6. White has a half-open d-file; Black a half-open c-file. Black could capture with Nxd4, Nxe4. Black is to move and has 34 legal moves.

WhiteBlackMaterial (pawn units)3838Minor pieces developed32Moves spent on pawns23Pawns on d4, e4, d5, e510Squares attacked in the other half95not castlednot castled

Codes that branch off from B58

The reference lines of one other code leave B58 from the position after 6...e5, each with its own moves.

CodeMovesReference line
B597.Nb3Sicilian Defense: Boleslavsky Variation

Closest boards in other codes

CodeLineDiffers on
B60Sicilian Defense: Richter-Rauzer Variationfour squares: c1, f1, e2, g5
B83Sicilian Defense: Scheveningen Variation, Classical Variationfour squares: c6, e6, e7, b8
B88Sicilian Defense: Sozin Attack, Leonhardt Variationfour squares: e2, c4, e6, e7
B92Sicilian Defense: Najdorf Variation, Opocensky Variationfour squares: a6, c6, a7, b8
B33Sicilian Defense: Opensix squares: b1, f1, e2, c3, d6, d7
B62Sicilian Defense: Richter-Rauzer Variationsix squares: c1, f1, e2, g5, e6, e7
B70Sicilian Defense: Dragon Variationsix squares: f1, e2, c6, g6, g7, b8

Where lines continue from here

Three named lines filed under other codes pass through the position after 6.Be2. Besides the codes above, they belong to B72.

Volume B

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