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Sicilian Defense: Nimzovich Variation

1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 · B29

Part of Sicilian Defense

Starting positionWhite to move

0 / 14

The knight can exchange structure for time

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  7. 7.

The idea

Black develops the knight to f6 on move two, inviting White to push e5 and chase it — a provocative line that trades structure for activity.

Main line: 1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 Nxc3 5.dxc3 Nc6 6.Bc4 e6 7.O-O d6

What White wants

  • Push e5 to gain space while calculating the knight exchanges
  • Develop Bc4 and castle to use active pieces
  • Use the half-open d-file after ...Nxc3 dxc3

What Black wants

  • Develop quickly and challenge e5 with ...d6
  • Target the doubled c-pawns after the exchange on c3
  • Trade pieces when it relieves the cramped position

Key idea

Understand this and the moves stop needing to be memorised.

The knight can exchange structure for time

After e5 Nd5 Nc3 Nxc3 dxc3, White has doubled c-pawns on c2 and c3 and a half-open d-file. Black's knight does not have to exchange on c3, but this choice damages the structure while helping White develop. Both sides must weigh activity against pawn targets.

Common mistake

Treating Nc3 and dxc3 as forced rather than a structural choice. White can choose another setup; if the exchange occurs, develop actively and use the d-file instead of defending the doubled pawns so passively that Black's central breaks arrive unchallenged.

Representative position

The position this opening is aiming at. Copy the FEN, or open it in the analysis board and let the engine tell you what it is worth.

r1bqkb1r/pp3ppp/2npp3/2p1P3/2B5/2P2N2/PPP2PPP/R1BQ1RK1 w kq - 0 8

Analyze this position

Related openings

Sicilian Defense1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 · B20–B99Black answers 1.e4 with the c-pawn, refusing to mirror and instead trading a wing pawn for a centre pawn — the most ambitious and most popular reply in chess.Sicilian Defense: Alapin Variation1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 · B22White avoids all the main-line theory with 2.c3, offering a pawn centre in exchange for the open Sicilian's complexities.Sicilian Defense: Kan Variation1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 · B41–B43Black plays ...a6 early, keeping the knight flexible on b8 and preparing ...b5 — the most unassuming of the big Sicilian systems.Sicilian Defense: Taimanov Variation1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 · B47–B49Black develops both knights and the queen to natural squares before committing the pawn structure — flexible, sound, and very hard to attack.Sicilian Defense: Najdorf Variation1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 · B90–B99The most analysed opening in chess: 5...a6 takes the b5 square away from White's pieces and prepares ...e5 and ...b5 in one move.Sicilian Defense: Dragon Variation1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 · B70–B79Black fianchettoes the bishop onto the long diagonal, where it rakes White's queenside — the most direct and most tactical Sicilian.