Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit

The Grünfeld Defense: Brinckmann Attack, Reshevsky Gambit is a chess opening classified under ECO code D83 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. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. Rc1 O-O 6. e3 c5 7. dxc5 Qa5. The resulting position leaves white to move.