1. e2e4  1... g8f6  2. e4e5  2... f6d5  3. d2d4  3... d7d6  4. g1f3  4... d6e5 One of the most solid options for Black in the Alekhine Defense. Both the alternatives, 4...Bg4 and 4...g6, were played in the iconic Spassky-Fischer match. 5. f3e5  5... c7c6 Bortnyk is an expert on this system, having played it dozens of times in online games. By the way, Carlsen has also played this a few times. 6. f1d3  6... b8d7  7. e1g1  7... d7e5  8. d4e5 Both players had already faced each other in this position but in a bullet game. Bortnyk chose 8...g6, but this time he plays a move that Carlsen knows well, since he played it in his teenage years. 8... d5b4  9. d3e4  9... d8d1  10. f1d1  10... g7g6  11. b1a3 A new move. 11... f8g7  12. c2c3  12... b4a6  13. a3c4 On the board we have a typical position in which the world champion feels good. Objectively, White doesn't have much, but with his magnificent endgame technique, he manages to exert pressure. 13... e8g8  14. c1e3  14... a6c7  15. a2a4  15... c7d5  16. e3d4  16... b7b6 [%c_effect b6;square;b6;type;Inaccuracy;persistent;true] This is an error that will be exploited immediately. Black keeps the disadvantage to a minimum after 17. a4a5 [%c_effect a5;square;a5;type;GreatFind;persistent;true] The bishop on d4 turns into a monster now. He will be the main piece responsible for White's victory. 17... b6b5  18. c4e3  18... c8e6  19. a5a6 [%c_effect a6;square;a6;type;GreatFind;persistent;true] An excellent move, fixing the a7-pawn as a target. 19... f8c8  20. e3d5  20... e6d5 The best. After 21. e4d5  21... c6d5  22. a1a3  22... c8c7  23. a3b3  23... a8b8  24. d1a1 Black is doing what he can to defend the queenside, but now White threatens 25.Ra5, and the situation is critical. 24... e7e6 [%c_effect e6;square;e6;type;Mistake;persistent;true] This loses. 25. a1a5  25... c7c6  26. g2g3 [%c_effect g3;square;g3;type;GreatFind;persistent;true] Giving some breathing space for the king and preparing to collect a pawn on the queenside. 26... g7f8  27. d4a7  27... b8a8  28. a7d4  28... c6a6  29. a5a6  29... a8a6  30. b3b5 White is a pawn up with the b-pawn ready to roll. Against Carlsen, the position can be resigned. 30... g6g5  31. g1g2  31... g5g4  32. b5b7  32... f8h6  33. b2b4  33... a6a3  34. b4b5  34... a3b3  35. b5b6 