Semi-Slav Defense: Chigorin Defense

The Semi-Slav Defense: Chigorin Defense is a chess opening classified under ECO code D46 in the Closed & Semi-Closed Games family, arising from 1.d4 d5, including the Queen's Gambit, Slav Defense, and related systems. It is reached after 11 moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bd6 9. O-O Bb7 10. a3 O-O 11. Qc2. The resulting position leaves black to move.