1. d2d4  1... g8f6  2. g1f3  2... g7g6  3. c2c4  3... f8g7  4. b1c3  4... e8g8  5. c1g5 This move is a specialty of GMs Mamedyarov and Dubov, who often use it in blitz games. 5... c7c5  6. d4d5  6... d7d6  7. e2e3 There's nothing wrong with advancing the pawn two squares. 7... b8d7 Black usually chases the white bishop immediately with 8. f1e2 