Sicilian Defense: Kan Variation, Wing Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5

Sicilian Defense: Kan Variation, Wing Attack after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 87654321abcdefgh

The Sicilian Defense: Kan Variation, Wing Attack is a chess opening classified as ECO B43, reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5. It is a line of the Sicilian Defense. White is to move. 3 named lines continue from this position.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 1,660 times by this move order. White won 43%, 6% were drawn and Black won 51%. The most popular continuation is 6. a3 (38% of games).

Engine evaluation: +0.24 (Stockfish, depth 59; best line 6. Bd3 Bb7 7. O-O b4 8. Na4 Nc6)

ECO
B43
Moves
10 plies
FEN
rnbqkbnr/3p1ppp/p3p3/1p6/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - 0 6
PGN
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
0-14999636%61%
1500-19991,00846%49%
2000+55641%52%
All1,66043%51%

Most played moves

MoveGamesWhite / draw / Black
6. a3623 (38%)41%53%
6. Be3395 (24%)46%48%
6. Bd3260 (16%)43%51%
6. Be294 (6%)46%51%
6. Bf463 (4%)51%48%
6. g354 (3%)61%30%
6. a453 (3%)38%57%
6. Qf319 (1%)53%42%

Master games

2,158 over-the-board games are classified under this line (White 29%, draw 20%, Black 51%). The strongest:

Search all games of the Sicilian Defense: Kan Variation, Wing Attack and its sub-variations

Highest-rated Lichess games

Comes from

Sicilian Defense: Kan Variation, Knight Variation (4… a6 5. Nc3) 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3

Continuations

More Sicilian Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.