Sicilian Defense · B20

Kronberger Variation, Nemeth Gambit

1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4

An early pawn trade leaves the c-file as Black's avenue and the d-file as White's - both sides get real winning chances down their own file. Black keeps the extra pawn; White plays for time, open lines, and initiative - the classic gambit trade. Black trades the c-pawn for White's d-pawn and plays for an unbalanced fight: queenside counterplay against White's central and kingside ambitions.

The first 4 moves, explained

• 1. e4 Stakes a claim in the centre, controlling d5, and frees the bishop and queen.
• 1... c5 Fights for d4 from the flank - contesting the centre without committing a centre pawn. Theory calls this the Sicilian Defense.
• 2. Na3 Develops the knight to a3. It backs up the pawn on c2. Theory calls this the Kronberger Variation.
• 2... Nc6 Develops the knight to c6, eyeing d4 and e5.

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