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Semi-Slav: Botvinnik Variation

1.d4 d5 2.c4 c6 3.Nf3 Nf6 · D44

Part of Semi-Slav Defense

Starting positionWhite to move

0 / 20

A tactical pin makes the sacrifice possible

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The idea

The most analysed line in 1.d4: Black grabs material on the queenside while White sacrifices a knight for a raging attack on the kingside.

Main line: 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.Nxg5 hxg5 10.Bxg5 Nbd7

What White wants

  • Use e5 to attack the f6 knight while exploiting the pin
  • Calculate Nxg5 and Bxg5 to recover the sacrificed material
  • Develop quickly and assess both kings before choosing a wing

What Black wants

  • Counterattack with ...b5, ...h6 and ...g5 while holding c4
  • Develop ...Nbd7 and choose the queen and king squares carefully
  • Return material when necessary to finish development and limit White's initiative

Key idea

Understand this and the moves stop needing to be memorised.

A tactical pin makes the sacrifice possible

With e5 attacking the pinned f6 knight, ...h6 and ...g5 try to drive the bishop away. Nxg5 hxg5 Bxg5 restores the pin, allowing White to threaten Bxf6 and recover a piece. The temporary sacrifice needs calculation, not an assumption of a permanent material deficit.

Common mistake

Playing Nxg5 without checking the follow-up pin and piece recovery. The line is concrete: after ...hxg5, Bxg5 renews pressure on f6. White must calculate Black's defensive resources and finish development instead of treating every move as a forced mating attack.

Representative position

The position this opening is aiming at. Copy the FEN, or open it in the analysis board and let the engine tell you what it is worth.

r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N5/PP3PPP/R2QKB1R w KQkq - 1 11

Analyze this position

Related openings

Semi-Slav Defense1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 · D43–D49Black combines the Slav and the QGD — ...c6 and ...e6 together — creating a fortress that then expands on the queenside with ...b5.Semi-Slav: Moscow Variation1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 · D43Black asks the g5 bishop to decide with ...h6. In the Moscow Variation White exchanges on f6, conceding the bishop pair in return for comfortable development and a solid centre.Slav Defense1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 · D10–D19Black defends d5 with the c-pawn instead of the e-pawn, keeping the bishop on c8 free to develop actively to f5.Sicilian Najdorf: Poisoned Pawn Variation1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 · B97Black grabs the b2 pawn with the queen and wanders around the white position for several moves while White builds a huge attack — the sharpest line in modern chess.