The Semi-Slav
...c6 and ...e6 together: the sturdiest structure in queen's-pawn chess, and the springboard for the wildest. Hold the Meran's ...b5 expansion or dive into the Botvinnik's forced fireworks.
Step through the main line
The lines
The Meran (...dxc4 & ...b5)
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. O-O a6
The Botvinnik 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. Nxg5 hxg5 10. Bxg5 Nbd7
The Moscow (5.Bg5 h6)
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Bd3 dxc4 9. Bxc4 g6
The Anti-Meran (6.Qc2)
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O dxc4 9. Bxc4
How this guide is made: the lines and explanations come from the authored Strong Squares repertoire curriculum. Automated checks verify legal move sequences and required teaching fields. Independent chess-editor approval remains a private-preview release gate. Read the teaching method.