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Sicilian Defense: Rossolimo Variation
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Sicilian Defense: Rossolimo Variation
Sicilian Defense: Rossolimo Variation
B311.e4 c5 2.Nf3 Nc6 3.Bb5
Updated Mar 27, 2026 4 min read
TL;DR
The Rossolimo (1.e4 c5 2.Nf3 Nc6 3.Bb5) avoids Open Sicilian theory by focusing on the c6 knight. White typically trades on c6, doubling Black’s pawns, then plays a flexible setup with d3, Re1, and gradual kingside expansion, a favored choice by Carlsen at the elite level.
Reviewed by:
IM John Bartholomew (Co-Founder & Chess Educator) International Master and chess educator, co-found of Chessable. Expertise in structured opening courses (“Climbing the Rating Ladder” series).
In This Article
- History & Notable Players
- Statistics
- Main Lines & Variations
- Practice on Chessiverse
- Performance at Different Ratings
- Time Control Patterns
- Move Diversity & Theory Depth
- Historical Trends
Summary
Introduced by 3.Bb5, the Rossolimo Variation (ECO: B31) follows the Sicilian Defense structure but pressures the c6 knight. Unlike the Ruy Lopez, White often trades on c6, disrupting Black’s pawn structure. This invites a long-term positional edge, especially in endgames. Black’s most popular respond is 3...g6 (preparing a Dragon-style bishop), but care varies: 4.Bxc6 — creating weak pawns but gaining open files 4.O-O Bg7 5.c3 — preparing d4 expansion, preserving pawn structure
16.1M Lichess games confirm its relevance across levels, with a balance (50% W, 45.2% B draws at 4.8%).
History & Notable Players
Proven on White
- Vladislav Nevednichy (41 games)
- Eduardas Rozentalis (40 games)
- Petr Velicka (35 games)
Proven on Black
- Vyacheslav Ikonnikov (49 games)
- Rauf Mamedov (47 games)
- Zigurds Lanka (45 games)
Statistics
All-Rating Aggregate
- White wins: 50%
- Black wins: 45.2%
- Draws: 4.8%
(Balanced—early moves maintain parity but preference for preparation grows at higher levels.)
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Main Lines & Variations
The key structural deviation: 3.Bb5 g6 (as opposed to the typical Dragon’s 3...e6). Main continuations:
- 4.Bxc6 → doubles Black’s pawns, opens diagonals
- 4.O-O Bg7 5.c3 → prepares d4 push
- 4.c3 directly → same as above, minor swap
FEN: r1bqkbnr/pp1ppppp/2n5/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R (Position after 4.Bxc6, White to move)
Practice on Chessiverse
- Train against AI bots (818–2704 Elo) tailored to the Rossolimo Variation.
- Pairings by proficiency level (beginner → advanced):
- Beginner:
- Matilda Bushwalker (Observer) → Wild
- Sasha Kingly (Savage) → Aggressive
- Intermediate:
- Teselin Vopalov (Hunter) vs. Tabu Islander (Guardian)
- Advanced:
- Rena Bishop (Mediator) vs. Yoshi Roofoto (Observer)
- Beginner:
Performance Across Rating Levels
| Rating (Elo) | Share (Games) | White % | Black % | Draw % | Sharpness |
|---|---|---|---|---|---|
| 400 | 94,768 | 48.7 | 47.5 | 3.8 | 0.962 |
| 1200 | 1.3M games | 49.6 | 46.7 | 3.7 | 0.963 |
| 1800 | 3.7M games | 50.2 | 45.0 | 4.8 | 0.952 |
| 2500 | 164,279 | 50.2 | 40.3 | 9.5 | 0.905 |
- Higher Elo? Draws spike (9.5% at 2500+) due to mutual avoidance of cramped lines.
Time Control Patterns
Popularity by format:
- Bullet: 0.36%, 49.8% win rate for White
- Blitz: 0.54%, 50.1% win rate
- Rapid: 0.47%, 49.7% win rate
(Peak usage in bullet, reflecting its aggressive, structural flexibility.)
Move Diversity & Theory Depth
Entropy Analysis (via move selection predictability)
| Elo | Most played move | Viable counter moves | % Single best move | Entropy |
|---|---|---|---|---|
| 400 | a6 (25.1% at 400 Elo) | 9 | 49.8% | 3.152 (low vol.) |
| 2500 | g6 (43.3%) | 3 | 74.3% | 2.871 (sharp)* |
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(Discipline vs. creativity: theory sharpens predictably, chaos dominates at lower ranks.)
Historical Trends
Peak Adoption: 2019 (0.42%). Current Stats: 0.32% of games. (No decline—endiastic, theoretically rich, and resistant to shifts.)
Key Takeaways
For Beginners
- Master the *bishop-c6 trade (4.Bxc6)_ and adipose to an open file.
- Avoid immediate deep line memorization, focus on principals: attacking doubled pawns on d6.
Intermediate Steps
- Prioritize c3/d3 build, O-O + Re1 unity before weakness exploitation.
- Consider the time Pressure: zooms main threats at 1,500+.
Advanced Players
- Know the theory-collar of Bébibi vs open Sicilian tactics.
- Exploit tight discipleia precauteing Theorist mindset—expect *Connecticut of d6-c6(for better).
(e.g: preparationAnderson’s deep access versus slow Black’s patient)
Frequently Asked Questions
Q: Is it beginner-friendly?
➤ A: Yes! It’s used in top-level chess but suits any level. Avoid memorization tactile focus on structural plans like:
- Exploiting weakened pawns
- Center expansion after c3/d4
Q: Win rates?
➤ A:
- 50% for Whites, 45.2% for Blacks (both edges at low/mid-Level).
- Top-flight players (200+ Elo): White’s imbalance amplifies.
Q: Best practice?
➤ A: Play against Chessiverse bots, matching rating levels to your forear.
Available trainers: Observ, Hunter, Mediator + AI others (armed with opening Rossolimo lines).
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