Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation

The Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation is a chess opening classified under ECO code D55 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 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bxf6 Bxf6 7. e3 O-O 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4. The resulting position leaves black to move.