1. d2d4  1... g8f6  2. c2c4  2... g7g6  3. b1c3  3... d7d5  4. c4d5  4... f6d5  5. c1d2  5... d5b6  6. e2e3  6... f8g7  7. h2h4 Harry and George, Duda's favorite buddies. He uses any given moment to push them forward and these guys often help him discover the enemy king and mate it. If we have to be more serious, h2-h4 is a trendy idea in almost every single Semi-Open game and the fianchetto Gruenfeld definitely helps. 7... c7c5 A novelty in return. This temporary pawn sacrifice is often a no-brainer for the Gruenfeld player. 8. d4c5  8... b6d7  9. c3a4 This might not be the most accurate though. 9... b8c6 