1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g2g3 It is remarkable how solid Mamedyarov's openings are. But, actually, let's not get ahead of ourselves. 3... f8b4  4. b1d2  4... d7d5  5. f1g2  5... e8g8  6. g1f3  6... d5c4 Both sides are confidently blitzing their moves and following an earlier game of Keymer’s. 7. d1c2  7... a7a5  8. a2a3  8... b4d2  9. c1d2  9... b7b5  10. a3a4  10... c7c6  11. h2h4  11... h7h6  12. g3g4 Yes,a novelty. And if there is one name to be associated with a g4-attack nowadays, that would be Mamedyarov $1 12... f6g4 Forced and played quickly, but after White's next move, Keymer had to start burning precious time. 13. f3e5  13... f7f5 Choosing from many options is a curse, especially in rapid and blitz. It seems, however, as there were a couple of more accurate options. 14. e5g4  14... f5g4  15. a4b5  15... d8f6  16. e1c1 This is what the g3-g4 sacrifice is all about. Occupy the open files on the kingside and mate, just like Aronian already did a couple of days ago. 16... c8d7 But this seems too slow $1 17. h1g1 Mamedyarov wastes no time counting the pawns but instead quickly brings his rooks on the half-open files. 17... a8a7 The rook is ready to guard his king along the seventh rank. However, ... 18. b5b6 A nasty spoiler that completely disorganizes the black defensive attempt. 18... a7a6  19. g2e4  19... f6h4  20. f2f3 Opening every single file against the black king. Keymer tries to control the situation as much as he can with 20... g4g3  21. g1h1  21... h4e7  22. d1g1  22... f8f6  23. g1g3 The floodgates have been open and the rooks find perfect coordination with their long-range brothers to wrap up the game. 23... g8f8  24. h1g1  24... a6b6  25. d2a5  25... b6b5  26. g3g7 The decisive blow. 26... e7g7  27. g1g7  27... f8g7  28. a5c7 Wins material and with the black king still open White should obviously be winning. 28... d7e8 