ChessScreenshot

Sicilian Defense: Kan Variation

1.e4 c5 2.Nf3 e6 3.d4 cxd4 · B41–B43

Part of Sicilian Defense

Starting positionWhite to move

0 / 14

...a6 waits, ...b5 strikes

  1. 1.
  2. 2.
  3. 3.
  4. 4.
  5. 5.
  6. 6.
  7. 7.

The idea

Black plays ...a6 early, keeping the knight flexible on b8 and preparing ...b5 — the most unassuming of the big Sicilian systems.

Main line: 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 6.Bd3 Nf6 7.O-O Bc5

What White wants

  • Develop with Bd3 and O-O and attack the kingside
  • Prevent ...b5 with a4 or meet it with a4
  • Use the extra space before Black finishes the queenside expansion

What Black wants

  • Play ...b5 and ...Bb7 and pressure e4 down the long diagonal
  • Develop the queen's knight to c6 or d7 depending on White's setup
  • Keep the structure flexible and equalise comfortably

Key idea

Understand this and the moves stop needing to be memorised.

...a6 waits, ...b5 strikes

The Kan keeps the b8 knight uncommitted so it can go to c6 or d7 as the position demands. Meanwhile ...b5 and ...Bb7 aim at e4, which is the pawn holding White's whole position together.

Common mistake

Developing without answering ...b5. The whole Kan plan is ...b5 and ...Bb7, so White has to decide early: a4 to stop the break, or Bd3 and O-O to let it come and attack on the kingside. Drifting lets it arrive with tempo.

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.

rnb1k2r/1pqp1ppp/p3pn2/2b5/3NP3/2NB4/PPP2PPP/R1BQ1RK1 w kq - 6 8

Analyze this position

Related openings

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: Scheveningen Variation1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 · B80–B89A flexible, small-centre setup: Black builds a compact pawn wall with ...d6 and ...e6 and chooses the counterattack after seeing where White commits.Sicilian Defense: Sveshnikov Variation1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 · B33Black advances ...e5, gaining central space while leaving a hole on d5 and a potentially backward d6 pawn. Active pieces, queenside expansion and ...f5 provide counterplay against those structural concessions.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 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: 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.