An obvious check in time trouble that provides Black another chance.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f6e4  6. d2d4  6... b7b5  7. a4b3  7... d7d5 The Open Ruy Lopez has been the favorite weapon of Korchnoi and Mamedyarov, but many other top players have also given it a try lately. 8. d4e5  8... c8e6  9. b1d2  9... f8e7  10. c2c3  10... e8g8  11. b3c2  11... f7f5  12. d2b3  12... d8d7  13. f3d4 This can be named the key square in the Open Ruy Lopez. 13... c6d4  14. b3d4  14... c7c5  15. d4e6  15... d7e6 If the black knight could only replace the queen in the blockade of the e5-pawn, all would be perfect for the second player. 16. f2f3  16... e4g5  17. c1f4 For the time being, Kosteniuk does not want to reveal her cards. 17... a8d8  18. g1h1 An useful move. His majesty moves away from possible attacks along the a7-g1 diagonal. 18... e6c8 Khotenashvili played this novelty after a heavy thought. 19. f4g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] The knight cannot be allowed access to the super-blockading square. 19... e7g5  20. f3f4  20... g5e7  21. a2a4 [%c_effect a4;square;a4;type;GreatFind;persistent;true] One of the most typical Ruy Lopez ideas. The white rook enters the battle from its original position. 21... d5d4 Now White gains an edge thanks to a clever idea. 22. a4b5  22... a6b5  23. a1a7 [%c_effect a7;square;a7;type;GreatFind;persistent;true] The open file starts to bring benefits. 23... d4c3  24. d1b1 A nice square for the queen, regardless of what the machine thinks. 24... e7h4  25. b2c3 Black's position is very loose, and Khotenashvili sacrifices a pawn in order to create a passer of her own. 25... b5b4  26. c3b4  26... c5c4 [%c_effect c4;square;c4;type;GreatFind;persistent;true] 27. b4b5  27... d8d2  28. f1d1  28... c4c3  29. b5b6  29... c8c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] A clever idea, which almost worked. 30. a7d7 Playing with fire $1 30... c5f2 Alas, in time trouble, Khotenashvili misses a beautiful shot. 31. d7d2  31... c3d2  32. d1f1 Now White is again in control, but the time trouble provokes more drama. 32... f2e2  33. c2d3  33... e2e1  34. b6b7  34... f8b8 