1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. g2g3  4... d5c4 "Maybe I should study some  Catalans with ...dxc4." (Grischuk) 5. f1g2  5... a7a6  6. e1g1  6... b8c6  7. e2e3  7... a8b8  8. f3d2  8... e6e5  9. g2c6  9... b7c6  10. d4e5  10... f6g4  11. d2c4  11... c8e6  12. d1e2  12... h7h5  13. f1d1  13... d8c8  14. e2f3 A novelty. At his stage Ding was an  hour ahead on the clock and Grischuk was severely worried about his king  safety. 14... b8b6 "An excellent move." (Grischuk) Instead of defending Black  sacrifices the exchange in return for light-squared domination. 15. c4b6  15... c7b6  16. h2h4 White sensibly decides to keep the h-file blocked. 16... g4e5  17. f3f4  17... e5g6  18. f4e4 