Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation

The Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation is a chess opening classified under ECO code D17 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. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Qc7 8. g3 e5 9. dxe5 Nxe5 10. Bf4 Nfd7 11. Bg2 g5. The resulting position leaves white to move.