1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... e7e5  6. d4b5  6... d7d6  7. c3d5  7... f6d5  8. e4d5  8... c6e7 8...Nb8 is much more popular, but this is also commonly played. Arjun faced this move in 2023 in a game against Dubov. 9. c2c3 [%c_effect c3;square;c3;type;Interesting;persistent;true] 9... e7f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true] This is the best route for the knight now. 10. a2a4  10... f8e7  11. f1d3  11... e8g8  12. e1g1 This is well-known opening theory, with more than 200 games played in this position. 12... f5h4 A good move, but there are alternatives. The plan is to push the f-pawn and start to move the kingside majority. 13. f2f4  13... a7a6  14. b5a3  14... e5f4  15. c1f4  15... h4g6  16. d3g6 [%c_effect g6;square;g6;type;Inaccuracy;persistent;true] This exchange makes things easier for Black. It's better to preserve the bishops with 16.Bg3 or 16.Be3, when White can fight for the advantage. 16... h7g6  17. a3c4  17... d8c7  18. b2b3  18... b7b6 A new move. Predke probably wanted to prevent a4-a5. He could, however, ignore White's idea and activate his bishop instead: 19. f4e3 This move doesn't look very good, since the bishop was already well-placed on f4. Getting it to d4 isn't so important for the position. Anyway, it's difficult to prove an advantage for White. 19... a8b8  20. e3d4  20... e7g5 [%c_effect g5;square;g5;type;GreatFind;persistent;true] Activating the bishop. 21. c4d2 The knight was ready to be attacked by b6-b5. Now it can go to e4 or f3. 21... f8e8  22. c3c4 [%c_effect c4;square;c4;type;Inaccuracy;persistent;true] White's position becomes unpleasant now. It's important to fight for control of the e-file with 22... g5e3  23. d4e3  23... e8e3  24. f1e1  24... c7c5  25. g1h1  25... c8f5  26. d2f3 [%c_effect f3;square;f3;type;Inaccuracy;persistent;true] This move loses a pawn. 26... f5g4 [%c_effect g4;square;g4;type;Mistake;persistent;true] Now White achieves a comfortable endgame. 27. e1e3 