ecocodes
Volume B · Semi-open games‹ B79B81 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

B80 Sicilian Defense: Scheveningen Variation

B80 holds four named lines, all under the name Sicilian Defense. It leaves B40 (Sicilian Defense: French Variation, Normal) with 5.Nc3 d6. That final move, by the d-pawn, covers c5 and e5 and opens a line for the bishop on c8 and the queen on d8. Of all other reference positions, the board of B81 (Scheveningen Variation, Keres Attack) comes closest, two squares apart.

Score sheet
#WhiteBlack
1e4c5
2Nf3e6
3d4cxd4
4Nxd4Nf6
5Nc3d6

Lines filed under B80

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: Scheveningen Variation2...e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d610
Sicilian Defense: Scheveningen Variation, Fianchetto Variation2...e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g311
Sicilian Defense: Scheveningen Variation, Vitolins Variation2...e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bb5+11check
Sicilian Defense: Scheveningen Variation, English Attack, with Qd22...d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Qd213

Sicilian Defense: Scheveningen Variation, Fianchetto Variation

  1. 2...e6 The e-pawn advances to e6, covering d5 and f5, opening a line for the queen on d8 and the bishop on f8.
  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, opening a line for the bishop on f8.
  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: Scheveningen Variation, Vitolins Variation

  1. 2...e6 The e-pawn advances to e6, covering d5 and f5, opening a line for the queen on d8 and the bishop on f8.
  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, opening a line for the bishop on f8.
  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: Scheveningen Variation, English Attack, with Qd2

  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 B80

  1. 1.e4 … 3.d4four earlier stops: B00, B20, B27, B40
  2. 3...cxd4B40 Open
  3. 4...Nf6B40 Normal
  4. 5...d6B80

The position after 5...d6

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. White could capture with Nxe6. White is to move and has 43 legal moves.

WhiteBlackMaterial (pawn units)3838Minor pieces developed21Moves spent on pawns24Pawns on d4, e4, d5, e510Squares attacked in the other half92not castlednot castled

Codes that branch off from B80

The reference lines of four other codes leave B80 from the position after 5...d6, each with its own moves.

CodeMovesReference line
B816.g4Sicilian Defense: Scheveningen Variation, Keres Attack
B826.f4Sicilian Defense: Scheveningen Variation, Matanovic Attack
B836.Be2Sicilian Defense: Scheveningen Variation, Classical Variation
B866.Bc4Sicilian Defense: Sozin Attack

Closest boards in other codes

CodeLineDiffers on
B56Sicilian Defense: Classical Variationfour squares: c6, e6, e7, b8
B62Sicilian Defense: Richter-Rauzer Variationfour squares: c1, g5, c6, b8
B70Sicilian Defense: Dragon Variationfour squares: e6, g6, e7, g7
B84Sicilian Defense: Scheveningen Variation, Classical Variationfour squares: f1, e2, a6, a7
B88Sicilian Defense: Sozin Attack, Leonhardt Variationfour squares: f1, c4, c6, b8
B90Sicilian Defense: Najdorf Variationfour squares: a6, e6, a7, e7
B95Sicilian Defense: Najdorf Variationfour squares: c1, g5, a6, a7

Where lines continue from here

Seven named lines filed under other codes pass through the position after 5...d6. All of them belong to the codes listed above.

Volume B

  1. 00
  2. 01
  3. 02
  4. 03
  5. 04
  6. 05
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  100. 99

Open this line in the finderAll Sicilian Defense codes