1. g1f3  1... d7d5  2. d2d4  2... g8f6  3. c2c4  3... d5c4  4. b1c3 In a must-win situation, Krasenkow  is ready to sacrifice a pawn. And not only one... 4... a7a6  5. e2e4  5... b7b5  6. e4e5  6... f6d5  7. a2a4 Just like Dubov yesterday, White tries to force concessions  on the queenside before launching his kingside attack. 7... e7e6  8. a4b5  8... f8b4 is the old line (8...Nb6). 9. d1c2  9... d5b6 The first major thought by Praggnanandhaa. 10. c2e4  10... d8d5 Some  more minutes were spent here. Apparently the young GM was wondering why  Krasenkow was entering this line. 11. e4g4  11... a6b5  12. a1a8  12... d5a8  13. g4g7  13... b4c3  14. b2c3  14... a8a1 This counterplay is what the line is all about. 15. g7h8  15... e8d7 All of this is super-forced, and it would be naive to think that the players were not aware of the earlier game. 16. f1e2 A  novelty, played after almost a quarter of an hour on the clock! This  sacrifice is born out of necessity. 16... a1c1 Praggnanandhaa gladly picks up the bishop and the pawn with checks! 17. e2d1  17... c1c3  18. f3d2  18... b8c6 The strongest continuation. The young  Indian GM develops while keeping his queen active, constantly troubling  the enemy king. 19. h8h7  19... c6d4  20. h7f7  20... d7c6  21. f7f4 Trying to unblock. In the process, White slows  down the opponent's passers too. 21... b6d5 Praggnanandhaa replies in the neatest way. 22. f4e4  22... c6c5 A very smart move. Black breaks the pin, but what's more,  he opens the road for his bishop and supports the pawns. 23. h2h4  23... c8b7 Praggnanandhaa follows his plan but misses an important  detail. 24. h4h5  24... d5b4 It seems as \"game over,\" but without a blink of an eye  Krasenkow goes 25. e1g1 Imagine, Kramnik trying to forbid castling! 25... c3d2  26. e4b7  26... b4d5 Despite the missed opportunity, Praggnanandhaa's position remains quite good, and one should expect the younger player to prevail in this highly irregular situation against the more experienced opponent. 27. h5h6 Setting another trap. 27... c4c3 Rejected! 28. h6h7  28... d2h6  29. b7a7  29... c5c4  30. d1g4 Krasenkow needs to risk once more to have a chance to continue this match. 30... c3c2  31. a7a2  31... c4b4 Into safety! 32. a2b2  32... b4c4  33. f1e1  33... d5f4 A trap in return, but it is Praggnanandhaa who  falls for it in the end. 34. h7h8q Once again, Krasenkow outsmarts his opponent in tactics! 34... h6h8  35. e1e4 But instead of winning, Black is now losing. 35... c7c5  36. e4f4  36... h8e5  37. b2c2  37... c4d5  38. c2d2  38... c5c4 Now White forces a win 39. f4d4 