Sicilian Defense: Kan Variation, Wing Attack

An entry in the Encyclopedia of Chess Openings (ECO B43), reached after 10 half-moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5.

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6.Bd3 2 lines
- B43 Christiansen's Dream
- B43 Spraggett Attack
6.Nxd4 1 line
- B40 Fianchetto Variation

About this opening

Sicilian Defense: Kan Variation, Wing Attack is an opening in the Encyclopedia of Chess Openings, classified under code B43. ECO group B (B00–B99) covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached after 10 half-moves from the starting position, with the move sequence 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5.

It belongs to the Sicilian Defense family. Within that family this is a level-2 branch (the Kan Variation → Wing Attack line). The immediate parent line is Sicilian Defense: Kan Variation, transitioned via 5…b5.

The opening sequence in prose form: 1.e4 c5, 2.Nf3 e6, 3.d4 cxd4, 4.Nxd4 a6, 5.Nc3 b5. From this position 2 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.