context: 1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... d7d5  4. c4d5  4... e6d5 Carlsen is one of the leading specialists in the QGD. 5. c1g5  5... c7c6  6. e2e3  6... c8f5  7. g1e2 Arjun has original ideas in almost all the openings. 7... f8d6 So does Carlsen. This is considered to be a promising side line. 8. e2g3  8... f5g6  9. d1f3 This is a novelty, but a common idea as we have already seen. 9... b8d7  10. g3f5  10... g6f5 This bishop is a problematic piece anyway, better leave the board. 11. f3f5  11... h7h6 A standard procedure. 12. g5h4  12... g7g6  13. f5c2  13... d8e7 The optimal square for the queen which prepares the long castling. 14. f1d3  14... g6g5  15. h4g3  15... d6g3  16. h2g3  16... e8c8 Carlsen kept his best light pieces on board and has equalized the game. 17. a1b1 The minority attack straight against the king looks like a great idea. But where will the white king hide $2 17... c8b8  18. b2b4  18... h6h5  19. c3a4 Arjun needs further preparation. 19... d8c8 A complex continuation. Black is still stopping b4-b5 but allows another idea. 20. a4c5  20... c8c7 Once again prophylaxis. 21. a2a4  21... h5h4 A bit too early. 22. a4a5 Arjun takes over the initiative $1 22... e7f8 Carlsen protects his rook in order to create the h4xg3 threat. 23. g3h4  23... h8h4  24. h1h4  24... g5h4 Without the kingside rooks, Arjun can secure his king and basically play a one-sided game on the queenside. 25. a5a6 Straightforward and good. 25... b7b6  26. c5d7  26... f6d7  27. d3f5 Arjun found another way to safeguard the kingside. 27... d7f6  28. f2f3  28... f8g7  29. f5h3  29... g7g5  30. b1b3 The rook is excellent where it stands. 30... f6e8 A nice maneuver. The c4-square is a permanent magnet for the black knight. 31. c2f5 The queens are correctly removed from the board. 31... g5f5  32. h3f5  32... c7e7  33. e1f2  33... e8c7 Change of plans. The a6-pawn is a stronger magnet. 34. f5d3  34... b6b5  35. b3c3 A blunder $1 35... c7a6  36. c3c6 One more and a final blunder. 36... a6b4  37. c6c3  37... e7c7  38. c3b3  38... b4d3  39. b3d3  39... b5b4 The pawns are unstoppable. 40. e3e4 