This effectively finishes the game.
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...