1. b2b3 Carlsen played this move, usually associated with legendary Danish GM Bent Larsen, in his two White games on day one. A welcome breath of fresh air for those who enjoy more creative openings. 1... e7e5  2. c1b2  2... b8c6  3. e2e3  3... g8f6 Abdusattorov chooses one of the variations with the best reputation for Black. 4. g1f3  4... f8d6 This is a perfectly normal move, but it's not the most popular one. 5. c2c4  5... e8g8  6. d2d3  6... f8e8  7. a2a3  7... a7a5  8. f1e2  8... d6f8  9. e1g1  9... d7d5  10. c4d5  10... f6d5  11. b1d2  11... f7f6  12. d1c2 The game ended up falling into a very typical pawn structure, which can occur in several variations and also with inverted colors (in several Sicilian lines, for example, Black is in a position similar to the one that White has here). This structure is known as the \"Hedgehog\" and there is a legendary game always associated with the plan that Carlsen will try later on. This game was played by Fischer in 1970 and shows how the American genius was many years ahead of his time: he was the first to employ the plan that is traditional today. 12... c8f5  13. f1e1  13... f5g6  14. g2g4 [%c_effect g4;square;g4;type;Interesting;persistent;true] The first new move of the game and a curious version of Fischer's plan, as Carlsen doesn't even make preparations with Kh1-Rg1. The move causes even more impact in this modern version. The idea is to gain space on the kingside, follow with Kh1-Rg1-Rg3-Rag1 and the entire script already shown by the legendary American. 14... d8d7  15. g1h1  15... a8d8  16. d2e4  16... g8h8  17. a1d1 A prophylactic move to avoid a possible knight sacrifice on b4. 17... g6f7  18. e1g1  18... d5b6 Setting up queenside activity with the next move. 19. g1g3 Carlsen follows Fischer's plan. 19... a5a4 [%c_effect a4;square;a4;type;GreatFind;persistent;true] Black starts the counterplay on the queenside. The tension grows.