1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. b1c3  3... d7d5  4. d1b3 Arjun and Vachier-Lagrave are two creative and aggressive players. A no-holds-barred battle was expected, and they didn't disappoint. They have different styles of opening play: while Arjun can try anything, Vachier-Lagrave sticks to his favorite openings. The theoretical battle starts early—the move 4.Qb3 is not very popular. 4... d5c4  5. b3c4  5... c8e6 This is the way to exploit White's move order. 6. c4b5  6... e6d7 