1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.0-0-0 Bd7 9.f4 Be7 10.Nf3 b5 opens the Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation (10...b5), ECO B69. Lichess records 8,523 games in this line, which gives us a reliable view of how it actually performs in practice.
History and Notable Players
It arises from the Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation (9...Be7). Among the most prolific White practitioners are Janis Klovans (11 games), Lothar Vogt (7 games), Sergei Tiviakov (6 games). Black-side regulars include Lars Ake Schneider (11 games), Veijo Maki (8 games), Alon Greenfeld (8 games).
Performance Across Rating Levels
The picture changes a lot as you climb the rating ladder. The 1200 bracket has 3 games (0.00% of all games at that level); White wins 33.3%, Black 66.7%, 0% are drawn. At 1800 the opening surfaces in 0.00% of games; White wins 56.3%, Black 39.6%, draws 4.2%. Among 2500-rated players the line appears in 0.02% of games and draws spike to 8.2%, indicating tight preparation. White's score improves by 15.5pp from the 1200 bracket to the 2500 bracket — the line rewards preparation.
Move Diversity and Theory Depth
Looking at move selection shows how forcing — or not — the position really is. Below 1800 the samples are small (3 games at 1200, 26 at 1400, 52 at 1600), so the comparison starts at 1800, with 144 games. There, the top reply is Bxf6, played 41.7% of the time. Three other moves each take at least 5% of games, and the top three moves account for 86.8% of games. Entropy: 1.94. By 2500 (2,873 games), Bxf6 dominates at 58.9% of replies; three other moves reach 5% and the top three moves account for 92.6% of games. Entropy drops to 1.61.
Common Mistakes
- Neglecting development — It can feel productive to make extra pawn moves early, but falling behind in piece development is what loses most amateur games — especially in open positions where active pieces find squares fast.
- Ignoring the kingside attack — In sharp Sicilian lines, White typically castles long and pushes the h-pawn. Without your own counterplay on the queenside or in the centre, White's attack lands first.
Practice on Chessiverse
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