Semi-Slav Defense: Quiet Variation

The Semi-Slav Defense: Quiet Variation is a chess opening classified under ECO code D30 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 5 moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Nbd2 Nbd7. The resulting position leaves white to move.