Now Shirov has stabilized, but  it ain't over yet.
1. b2b3 Zherebukh needs to win on demand, and he summons all his creativity right from the start. 1... d7d5  2. c1b2  2... c8g4  3. f2f3  3... g4h5  4. h2h4  4... f7f5 After this, we are out of book as early as on move four! One could hardly  believed that this can still happen at the prestigious World Cup! 5. g1h3 A nice maneuver. The knight is heading towards the e5-square like  in the Stonewall. 5... g8f6  6. h3f4  6... d8d6 Eyeballing the white king! 7. e2e3  7... h5f7  8. d2d4 Fixing the e5- and c5-squares. 8... b8d7 But Shirov certainly  won't give those outposts without a fight. 9. b1c3  9... a7a6  10. c3e2 White  increases the control over the central squares and gets ready to bother  the enemy f5-pawn. 10... g7g6  11. f4d3  11... f8h6 As aggressive as possible! 12. d1d2  12... c7c5  13. d4c5  13... d7c5  14. d3e5  14... c5d7  15. e5f7 Zherebukh needs to unbalance, and a bishop pair  could be a great asset for the future. Plus, the black king is getting  exposed... 15... e8f7  16. e1c1  16... e7e5 This obvious move is not the most accurate,  though. 17. c1b1  17... d6c5  18. f3f4 Very risky play, but that is the only way to get to  the enemy king. 18... h8e8  19. h4h5 Very nice, the light squares are vulnerable. 19... h6g7  20. e2c3 A pity! 20... e5f4  21. h5g6  21... h7g6  22. e3f4 