B43

Sicilian Defense: Kan Variation, Knight Variation

Chess diagram: Sicilian Defense: Kan Variation, Knight Variation after 5. Nc3

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

4,729,657 games: White 44.1% / Draw 4.6% / Black 51.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
2,615,7212.6M
Sicilian Defense: Kan Variation, Wing Attack 890,939891K
Sicilian Defense: Taimanov Variation 525,237525K
201,923202K
104,629105K
100,953101K
77,36577K
70,58871K

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 11, 2026

Engine evaluation

+0.39 White is slightly better

Best play: 5... b5 6. Bd3 Bb7 7. O-O Nc6 8. Nxc6 Bxc6 9. Re1 Qb8 10. a4

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

By rating

Rating changes little here: White scores 47% under 1400, 49% at 2200 and up and 51% in master games (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 170K
1400–1799 1.6M
1800–2199 3M
2200 and up 630K
Masters, over the board 15K

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 26, 2026

Overview

Sicilian Defense: Kan Variation, Knight Variation (ECO B43, Semi-Open Games) is a variation of the Sicilian Defense: Kan Variation, reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 (5 moves).

In 4,729,657 rated Lichess games between players rated 1600 to 2500, White won 44.1%, Black 51.4% and 4.6% were drawn. Black's most played move here is 5…Qc7, in 55% of those games.

It continues into one named variation, Sicilian Defense: Kan Variation, Wing Attack. In all, 3 named lines continue from it.

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How to play against the Sicilian Defense: Kan Variation, Knight Variation

The most played answer, 5…Qc7, also scores best for Black: 55.4%, with Black winning 53.1% and White 42.3% of 2.6M games. Of the main answers, 5…Nc6 scores lowest: 50.1%. Stockfish's first choice is 5…b5.

Main answers: those played in at least 5% of these games. Score: Black's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Popularity by year

The Sicilian Defense: Kan Variation, Knight Variation has lost ground since 2016: 0.16% of Lichess games in 2025, down from 0.21% (its peak: 0.24% in 2018).

Numbers by year
YearShare of gamesGames
20160.21%73,813
20170.22%122,230
20180.24%189,055
20190.23%281,030
20200.22%637,153
20210.18%715,341
20220.17%648,761
20230.17%637,866
20240.17%599,882
20250.16%567,575
2026 (Jan–Apr)0.16%179,230

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Variations (1)

Transpositions

All 3 named lines that continue from here

Cite this page

Caissa Codex. “Sicilian Defense: Kan Variation, Knight Variation (B43)”. Lichess data as of 11 Nov 2026. https://chesscodex.org/openings/sicilian-defense-kan-variation-knight-variation