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 9 moves: 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. b3 O-O 8. Bb2 Re8 9. Bd3. The resulting position leaves black to move.