Semi-Slav Defense: Normal Variation

The Semi-Slav Defense: Normal Variation is a chess opening classified under ECO code D45 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 7 moves: 1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. b3 Bd6 6. Bb2 O-O 7. d4 Nbd7. The resulting position leaves white to move.