1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8e7 One of the advantages of playing the Ruy Lopez as Black is that there is a wide variety of lines to choose from, making it possible to vary even at the elite level. In this system, Black wants to place the knight on g6, contrary to some rules of opening play, since the knight moves more than once and is not even that good on g6, certainly not better than on f6. But after analyzing with the computer, almost anything can be played. 5. e1g1  5... e7g6  6. c2c3 [%c_effect c3;square;c3;type;Inaccuracy;persistent;true] This, it seems, is not the best way to fight for an opening advantage against a well-prepared opponent. 6... d7d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] An accurate and computer-approved reply. 7. e4d5  7... d8d5 With the pawn on c3 the queen is not so bad on d5, since the knight cannot attack it. 8. a4b3  8... d5d3  9. b3c2  9... d3d6  10. f1e1  10... c8e6 A new move. Black is already completely fine. 11. d2d4  11... f8e7 Praggnanandhaa plays in a solid way. Another choice is to play with queenside castling, when Black is also fine. 12. c1e3  12... e5d4 Black can also castle immediately, with equality after 13. f3d4  13... c6d4  14. e3d4  14... e8g8 Black has equalized comfortably. I imagine that Abdusattorov was caught by surprise in this opening, as he is normally very well-prepared and poses problems for his opponents from the first moves. 15. b1d2  15... c7c5  16. d4e3  16... d6c7 It's not clear that this is the best square for the queen, but this is not a big deal. 17. d1h5  17... a8d8  18. g2g3 [%c_effect g3;square;g3;type;Inaccuracy;persistent;true] This move weakens the light squares, which can be exploited immediately. 18... d8d5 [%c_effect d5;square;d5;type;Inaccuracy;persistent;true] 19. h5e2  19... b7b5  20. f2f4 A difficult but interesting move. White creates threats with f4-f5 and takes away the e5-square from the black knight. 20... c7c8 Protecting the f5-square.