1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6 As a world champion, Carlsen is obliged to constantly prove his superiority against every top player in  the world. Often, the proof comes not only in the won matches and games,  but in the way that he is getting to those points. After the horrible  defeat yesterday, Carlsen insists on the Najdorf, rather than avoiding  it--a matter of principle! 5. b1c3  5... a7a6  6. h2h3 This beloved idea of  Fischer's was tested yesterday as well. 6... e7e5  7. d4b3  7... f8e7  8. g2g4  8... h7h6  9. c1e3  9... b8d7  10. a2a4  10... d7f8 Heading for the weakened dark squares. 11. f1c4  11... f8g6 An  obvious move and a novelty. 12. d1e2 Nepomniachtchi's play is logical and straightforward. He is  bringing a piece out with every move that he makes and is ready to castle  long. 12... c8d7  13. f2f3  13... a8c8  14. h3h4 White does not want to castle too early as the enemy rook is  already X-raying the c-file. 14... f6h7 Finally this move is made, just when the pawn got to a vulnerable square. 15. h4h5  15... e7h4 This same in-between check again. 16. h1h4 An exclamation mark for the courage! Nepomniachtchi always  plays with great appetite against Carlsen.