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Semi-OpenECO B33A defence for Black · advanced · common

Sicilian Defence: Sveshnikov Variation

Also known as Sveshnikov, Lasker-Pelikan Variation

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5

A sharp, modern main line where Black voluntarily accepts a backward d-pawn and a hole on d5 in exchange for fast piece play, the bishop pair and active counterchances. Once a sideline, it is now a respected weapon used at the very top.

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Starting position

Use Play, the arrows, or click a move to step through.

What it does

After the Open Sicilian 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3, Black plays 5...e5, immediately challenging White's strong d4-knight. The knight is driven to the rim (Ndb5 then Na3), and Black expands on the queenside with ...a6 and ...b5. In return for a permanent weakness on d5 and a backward d6-pawn, Black gets rapid development, the two bishops after ...Bxf6, and dynamic play on the dark squares and the half-open c-file.

When to use it

Choose the Sveshnikov when you want an active, theory-rich answer to 1.e4 that fights for the initiative rather than just equalising quietly. It suits players who enjoy concrete piece play and are happy to manage a long-term structural weakness in return for activity. Because the lines are forcing and well-mapped, it rewards study; if you prefer to avoid deep memorisation, a quieter Sicilian or the Caro-Kann may fit better.

Why it works

The pawn on e5 seizes central space and chases White's best-placed piece to the edge of the board, where the a3-knight is clumsy. Black's lead in development and the bishop pair often outweigh the d5 hole, since occupying d5 with a piece is not the same as winning the game. Decades of practice have shown the resulting positions are fully playable for Black, which is why the line has been adopted by elite players including in World Championship matches.

Key ideas

  • Trade structure for activity: accept the d5 hole for piece play
  • The two bishops after ...Bxf6 are a long-term asset
  • Expand with ...a6 and ...b5 to gain queenside space
  • Watch the backward d6-pawn and the d5 outpost
  • Aim for ...f5 to challenge White's grip on d5
  • White's knight on a3 is awkwardly placed on the rim

Watch out

Avoid an early ...b4 that lets a White knight reroute to d5 with tempo before you are developed. A frequent pitfall is allowing White to plant a piece firmly on d5 and clamp the position; Black usually needs the freeing break ...f5 to stay active. Mishandling the move order around 8.Na3 can hand White a lasting structural bind.

Where it can go

9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 (the main tabiya, fighting for d5)9.Bxf6 gxf6 (the Chelyabinsk structure with the bishop pair)7.Nd5 (the positional alternative to 7.Bg5)9.Bd3 Be6 (developing toward the d5 square)