

The Sicilian Defense: Bowdler Attack arises after 1.e4 c5 2.Bc4 and falls under ECO code B20. This bishop development is considered inaccurate because it allows Black to equalize comfortably. Black's strongest plan is 2...e6 followed by an eventual ...d5, which challenges the bishop directly, wins a tempo, and secures a solid central presence. A typical sequence runs 2...e6 3. Nc3 Nc6 4. Nf3 Nf6 5. O-O d5 6. exd5 exd5 7. Bb3. It is important for Black to develop the knight to c6 before pushing ...d5, since an early ...d5 would leave the king exposed along the a4-e8 diagonal, inviting a check from White's light-squared bishop. The resulting positions bear a resemblance to certain Italian Game structures, but Black's pawn on c5 serves double duty: it discourages White from achieving d4 and makes b3 a less effective retreat for the bishop, since ...c4 becomes a possibility. With 54.6 million Lichess games across all rating levels, it is one of the most popular openings.
History and Notable Players
It arises from the Sicilian Defense. Among the most prolific practitioners on the White side are Vlastimil Jansa (661 games), Heikki MJ Westerinen (641 games), Oleg Korneev (608 games). On the Black side, notable exponents include Loek Van Wely (738 games), Miso Cebalo (592 games), Zdenko Kozul (590 games).
Statistics
Based on 54.6 million Lichess games across all rating levels:
- White wins: 45.5%
- Black wins: 50.7%
- Draws: 3.7%
Interestingly, Black scores well in this opening, suggesting it offers strong counterplay.
Practice on Chessiverse
The best way to learn the Sicilian Defense: Bowdler Attack is through practice. On Chessiverse, you can play chess against computer opponents that specialize in this opening. Our AI bots range from beginner to grandmaster level, each with unique playing styles — from aggressive attackers to solid defenders. Choose a bot that matches your rating and work your way up as you master the opening's key ideas.













