The Sicilian Defence: 1.e4 c5 2.Nf3... 7.Qd2 begins with 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 (ECO B63). With 272,116 games on record, the patterns below come from the largest practical sample available.
History and Notable Players
It arises from the Sicilian Defence: 1.e4 c5 2.Nf3... e6. Among the most prolific White practitioners are Vlastimil Jansa (58 games), Semen I Dvoirys (55 games), Thomas Luther (54 games). Black-side regulars include Zdenko Kozul (198 games), Vasilios Kotronias (88 games), Istvan Csom (76 games).
Performance Across Rating Levels
The picture changes a lot as you climb the rating ladder. At 1200 Elo, the opening shows up in 0.00% of games (1,206 samples). White scores 56.2%, Black 40.5%, draws 3.2%. Move up to 1800 Elo and the share shifts to 0.00%, with White winning 53.8% versus Black's 41.5%. Among 2500-rated players the line appears in 0.23% of games and draws spike to 8.6%, indicating tight preparation. White's edge erodes by 10.3pp from 1200 to 2500 Elo, suggesting Black's counterplay is easier to find with experience.
Move Diversity and Theory Depth
Looking at move selection shows how forcing — or not — the position really is. At 1200 Elo, the top reply is Be7, played 58.4% of the time. There are 3 other moves seeing meaningful share, and 91.4% of games stick to established theory. Entropy: 1.78. By 2500, a6 dominates at 72.6% of replies; only 2 viable alternatives remain and 97.5% of moves are theory. Entropy drops to 1.08. That entropy collapse is the signature of a line where preparation pays off: at the top, players know the best move and play it.
Main Lines and Variations
After 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2, the established follow-ups are:
Each branch leads to a different middlegame character — the resulting pawn structure decides what kind of game you get.
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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