1. c2c4  1... e7e5  2. g2g3  2... c7c6  3. g1f3  3... e5e4  4. f3d4  4... d7d5  5. c4d5  5... d8d5  6. d4c2  6... g8f6  7. b1c3  7... d5e5  8. f1g2  8... b8a6  9. e1g1  9... f8e7  10. c2e3 Up to here, everything has been pretty well-known theory. Now, while Ian's next move is very natural, I think it is not best. 10... e8g8  11. a2a3 Simple, but strong. White plans b4, Bb2, and once Black's queen is destabilized, the e4-pawn can become a target. 11... f8e8  12. b2b4  12... f6g4 Black is playing very energetic chess, but at some point, bluffs need to be called. 13. c1b2  13... e5h5  14. h2h4 This seems to be asking for trouble. 14... e7f6  15. d1c2  15... g4e3  16. d2e3  16... c8f5 The machine still likes White's position here, provided he plays a couple of good moves. But, I really dislike the way the last few moves have gone for him. Now the e4-pawn will survive. As such, Black's kingside attack is much scarier and White's g2-bishop is stuck out of play. 17. c3a4 I did not love Ding's earlier decisions, but this was somewhat a matter of taste. I wanted to take the pawn. But this move is just a mistake. 17... f6b2  18. a4b2  18... a6c7 