Starting from 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4, players enter the Sicilian Defence: 1.e4 c5 2.Nf3... Ng4 — ECO B39. Black sends the f6-knight to g4 to dent the dark-squared bishop and disrupt White's setup. It's a sharp moment in an otherwise positional Maroczy structure.
History and Notable Players
It arises from the Sicilian Defence: 1.e4 c5 2.Nf3... 6.Be3. Among the most prolific White practitioners are Eduard Gufeld (8 games), Wolfgang Uhlmann (7 games), Vlastimil Jansa (7 games). Black-side regulars include Roman Hernandez (19 games), Lutz Espig (18 games), Bent Larsen (18 games).
Performance Across Rating Levels
The picture changes a lot as you climb the rating ladder. Among 1200-rated players, it appears in 0.00% of games — 173 of them on record — with White winning 40.5% and Black 54.3%. At 1800 the opening surfaces in 0.00% of games; White wins 41.2%, Black 50.7%, draws 8%. Among 2500-rated players the line appears in 0.04% of games and draws spike to 12.9%, indicating tight preparation. White's score improves by 6.4pp from the 1200 bracket to the 2500 bracket — the line rewards preparation.
Move Diversity and Theory Depth
Move choice is far from uniform in the Sicilian Defence: 1.e4 c5 2.Nf3... Ng4. At 1200 Elo, the top reply is Qxg4, played 56.1% of the time. There are 2 other moves seeing meaningful share, and 91.9% of games stick to established theory. Entropy: 1.72. By 2500, Qxg4 dominates at 98.3% of replies; only 1 viable alternatives remain and 100% of moves are theory. Entropy drops to 0.13. That entropy collapse is the signature of a line where preparation pays off: at the top, players know the best move and play it.
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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