1. d2d4  1... g8f6  2. g1f3  2... d7d5  3. c1g5  3... f6e4  4. g5h4 The real battle in this game will unfold over the next four moves, so we need to pay special attention to what happens in this interval. Dubov is known for his original opening ideas and for analyzing them in great depth. 4... h7h5 [%c_effect h5;square;h5;type;Interesting;persistent;true] Nepomniachtchi chooses a rare line, but it's the computer's first choice, which certainly did not go unnoticed by the renowned theorist who leads the white pieces. The idea is to play 5...f6 followed by g7-g5. The bishop on h4 doesn't have an easy life. 5. h2h3 A good reaction, freeing the h2-square for the bishop. 5... h8g8 [%c_effect g8;square;g8;type;Inaccuracy;persistent;true] The first step in the wrong direction. 6. b1d2 [%c_effect d2;square;d2;type;GreatFind;persistent;true] 6... g7g5  7. d2e4  7... g5h4 [%c_effect h4;square;h4;type;Mistake;persistent;true] Black is left with a miserable position after this move. 8. e4c3  8... e7e6  9. e2e4 Black has nothing to show for the weakened king and pawn structure. 9... f8h6  10. f3e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] Black's position collapses quickly. 10... d8g5  11. e4d5  11... e8f8  12. f1c4 [%c_effect c4;square;c4;type;GreatFind;persistent;true] Dubov likes to sacrifice pieces. This move must have come easily for him. 12... f7f6  13. d5e6 [%c_effect e6;square;e6;type;GreatFind;persistent;true] 13... f6e5  14. d1f3  14... f8g7  15. f3f7  15... g7h8  16. e6e7  16... c8e6 A desperate try to muddy the waters. 17. f7e6  17... b8c6  18. c3e4 [%c_effect e4;square;e4;type;GreatFind;persistent;true] 18... g5g7  19. e4f6 [%c_effect f6;square;f6;type;GreatFind;persistent;true] 19... g7g2  20. c4d5  20... g2h1  21. d5h1  21... g8g1 