Caissa Codex
B40

Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation

Chess diagram: Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation after 6. Nxd4

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

39,217 games: White 48.9% / Draw 5.1% / Black 46.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
35,68436K
1,0581,058
855855
368368
323323
279279
213213
9292

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

+0.07 The position is about equal

Best play: 6... Bb7 7. Bg2 Nf6 8. a3 Qc7 9. O-O d6 10. Re1 Nbd7 11. a4

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation (ECO B40, Semi-Open Games) is a variation of the Sicilian Defense: French Variation, reached after 1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4 (6 moves).

In 39,217 rated Lichess games between players rated 1600 to 2500, White won 48.9%, Black 46.0% and 5.1% were drawn. Black's most played move here is 6…Bb7, in 91% of those games.

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Other lines from the same position

Instead of 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4, the position after Sicilian Defense: French Variation also goes on to:

Transpositions

This position is also reached from these lines, by another move order:

Cite this page

Caissa Codex. “Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation (B40)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/sicilian-defense-kan-variation-wing-attack-fianchetto-variation

https://chesscodex.org/openings/sicilian-defense-kan-variation-wing-attack-fianchetto-variation