1. c2c4  1... e7e6  2. b1c3  2... d7d5  3. d2d4  3... c7c6  4. e2e4 This variation is known as the \"Marshall Gambit.\" This is the only case of a player who has two excellent gambits named after him, one with White and one with Black. 4... d5e4  5. c3e4  5... f8b4  6. c1d2 The most critical move. 6... d8d4  7. d2b4  7... d4e4  8. f1e2  8... b8a6  9. b4d6  9... e4g2  10. e2f3 This move had already been played by Abdusattorov before. 10... g2g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] The most accurate retreat. The difference is that on g5, the queen can go to a5 in some lines. 11. g1e2  11... g8e7  12. e2g3 The knight is ready to go to the strong e4-square. 12... e6e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] An excellent novelty and the first choice of the computer. Both players are well prepared, but now Abdusattorov plays a move that his opponent was probably not expecting. 13. d1b3 [%c_effect b3;square;b3;type;GreatFind;persistent;true] 13... e8g8 [%c_effect g8;square;g8;type;Inaccuracy;persistent;true] The Indian GM thought a lot before playing this move. It's impossible to navigate the complications without a prepared analysis. 14. h2h4  14... g5f6  15. g3e4  15... f6e6  16. e1c1 White has a very dangerous initiative, but the opening preparation goes further. 16... f8e8  17. h1g1  17... e7f5  18. f3h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] Abdusattorov was still playing very quickly. This very strong move is the computer suggestion. Clearly, Erigaisi was caught in a prepared line, and his situation is now very difficult. White attacks the f7-square and threatens 19.Ng5. Another idea of this move is to force ...h6 or ...g6, cutting off the queen's path to the h6-square. 18... f5d4 [%c_effect d4;square;d4;type;Mistake;persistent;true] Black's position becomes very dangerous after this natural move. 19. b3d3  19... g7g6 White had a big time advantage at this point. 20. f2f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] Finally, a move that was played after some thought. 20... c6c5 [%c_effect c5;square;c5;type;GreatFind;persistent;true] The best chance. I am amazed at Erigaisi's enormous skill in finding resources to complicate a difficult position with a huge disadvantage on the clock. 21. f4e5  21... a6b4  22. d3f1 [%c_effect f1;square;f1;type;GreatFind;persistent;true] The only square. 22... e6f5  23. d1d4 [%c_effect d4;square;d4;type;GreatFind;persistent;true] 23... c5d4  24. e4f6  24... g8h8  25. d6b4 [%c_effect b4;square;b4;type;GreatFind;persistent;true] 25... e8e5  26. h5d1 [%c_effect d1;square;d1;type;GreatFind;persistent;true] After all the complications, the situation finally became a little clearer. White has a great advantage since the two pieces are stronger than the rook—especially the powerful dark-squared bishop. 26... c8e6  27. b4d6  27... e6c4 [%c_effect c4;square;c4;type;Interesting;persistent;true] An interesting tactical try. White replies with a mistake. 28. f6g4 [%c_effect g4;square;g4;type;Mistake;persistent;true] After playing the opening and middlegame with magnificent precision, Abdusattorov finally makes a mistake and loses most of his advantage. 28... f5f1  29. d6e5  29... h8g8  30. g1f1 