1. g1f3  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... d7d5  4. e2e3  4... c7c5  5. d2d4  5... d5c4  6. f1c4  6... a7a6  7. e1g1  7... b7b5  8. c4b3  8... c8b7  9. e3e4  9... c5d4  10. f3d4  10... b8c6  11. d4c6  11... d8d1  12. f1d1  12... b7c6  13. f2f3 This is the main reason why White  keeps on playing this endgame. The white pawn chain effectively kills the  bishop on c6 and prevents Black's counterplay. Izoria has now a solid, but passive position. 13... f8c5  14. g1f1  14... e8e7  15. c3e2 As innocent as  it seems, this move contains a lot of poison. Not only is the knight  heading to the central d4 square; the c-file is opened as well. 15... h8d8 And Black reacts poorly! 16. c1g5 With a double threat: a skewer along the c-file or simply  e4-e5 to win the knight. 16... d8d1  17. a1d1  17... c5d6 I suspect Black interrupted his preliminary calculations  here, whereas Artemiev saw a bit further... 18. d1d6 This effectively finishes the game. 18... e7d6  19. e4e5  The point behind the combination. The king is dragged in front of his pawn chain. Even in the deep endgame, without the major pieces on the board  this is still too dangerous. 19... d6e5  20. g5f4  20... e5f5  21. b3c2  21... f6e4  22. f3e4  22... f5f6  23. f1f2 The forcing play is over. White's piece pair is  much stronger than the rook as it controls too many squares. 23... e6e5  24. f4d2  24... f6e7  25. d2b4 It is always useful to worsen the position of the  enemy pieces. 25... e7e8  26. b4a5 Petrifying the queenside pawns. Those might become weaknesses in  the future. 26... c6d7  27. c2b3  27... a8c8  28. e2c3  28... c8c6  29. c3d5  29... c6h6  30. a5c3  Another nasty in-between move. 30... e8f8  31. h2h3  31... f7f5  32. e4f5  32... d7f5  33. c3e5 Artemiev won a pawn and centralized his pieces.  The end is nigh.