Grünfeld Defense: Exchange Variation, Nadanian Attack

The Grünfeld Defense: Exchange Variation, Nadanian Attack is a chess opening classified under ECO code D85 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 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Na4. The resulting position leaves black to move.