Semi-Slav Defense · D44

Botvinnik Variation, Ekstrom Variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. e4 b5 7. e5 h6 8. Bh4 g5 9. exf6 gxh4 10. Ne5

Black comes out ahead on material - White needs concrete play to justify it. Both sides burn the boats: White gives structure for a huge centre and attack, Black grabs queenside pawns and runs - one of the sharpest lines in chess. White has doubled pawns on the f-file.

The first 4 moves, explained

• 1. d4 Stakes a claim in the centre, controlling e5, and frees the bishop and queen.
• 1... d5 Stakes a claim in the centre, controlling e4, and frees the bishop and queen.
• 2. c4 Challenges the pawn on d5 - the central tension has to resolve. The pawn is genuinely on offer - this is the Queen's Gambit: development and initiative over material.
• 2... c6 Fights for d5 from the flank - contesting the centre without committing a centre pawn. Theory calls this the Slav Defense.

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