1. e2e4  1... g8f6 In the interview after their first game, Duda revealed that it  was very difficult to prepare against Xiong as the young American plays so many things. Now it was the Polish GM's turn to surprise. He had never  opted for the Alekhine, at least according to the Megabase. 2. e4e5  2... f6d5  3. c2c4  3... d5b6  4. d2d4  4... d7d6  5. f2f4  5... c8f5  6. b1c3  6... e7e6  7. g1f3  7... f8e7  8. c1e3  8... e8g8  9. f1e2  9... d6e5  10. f4e5  10... b8c6  11. e1g1  11... f7f6  12. e5f6  12... e7f6  13. b2b3 This might have been a  surprise for Black. 13... d8e7  14. d1e1 