1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 opens the Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations, ECO B46. With 2,685,568 games on record, the patterns below come from the largest practical sample available.
History and Notable Players
It arises from the Sicilian Defense: Classical Variation. Among the most prolific White practitioners are Dragoljub Velimirovic (24 games), Aleksander Sznapik (23 games), Vlastimil Jansa (22 games). Black-side regulars include Mark E Taimanov (157 games), Vlastimil Jansa (118 games), Sergei Rublevsky (84 games).
Performance Across Rating Levels
How well the Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations works depends on what level you're playing at. The 1200 bracket has 77,826 games (0.01% of all games at that level); White wins 46.8%, Black 50%, 3.1% are drawn. At 1800 the opening surfaces in 0.11% of games; White wins 47.8%, Black 47.7%, draws 4.5%. At 2500, 0.07% of games go into this opening; draws sit at 9.3% — the line is well-mapped at this level. Positions also become less sharp as level rises (sharpness 0.97 → 0.91).
Time Control Patterns
Time control matters here: blitz players reach for this opening more than others. In bullet, it appears in 0.05% of games (1,343,618); White wins 47.6%. Blitz shows 0.06% adoption across 2,226,778 games, White scoring 47.8%. In rapid, the share rises to 0.04% — 458,790 games, White 48%.
Move Diversity and Theory Depth
What players actually play after the opening moves depends heavily on rating. At 1200 Elo, the top reply is Nxc6, played 35.6% of the time. There are 5 other moves seeing meaningful share, and 71.3% of games stick to established theory. Entropy: 2.71. By 2500, Nxc6 dominates at 31.6% of replies; only 4 viable alternatives remain and 73.6% of moves are theory. Entropy drops to 2.57.
Historical Trends
Long-term, the trajectory of this opening is informative. Adoption peaked in 2015 at 0.09% (19,388 games). By 2025 it sits at 0.05% — a 25% shift overall, leaving the line in decline.
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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