comment: An unfortunate novelty which will not attract followers. Carlsen believes that he has the time to cover his kingside but forgets the opposite wing.
context: 1. e2e4  1... c7c5  2. g1f3  2... e7e6  3. c2c4  3... b8c6  4. d2d4  4... c5d4  5. f3d4  5... g8f6  6. b1c3  6... f8c5 A line full of chances, especially for blitz. It is an upside-down situation straight from the beginning. Black will be the one ahead in development, and White will have to be careful now. 7. d4c2 The modern continuation. 7... d8b6  8. d1d2 It seems as though the queen is positioned optimally here. 8... f6g4  9. f2f3  9... g4f2 This is what the line is all about. Carlsen needs to choose carefully. 10. c3a4 The only move. 10... b6c7 Also an only move by Arjun, as the queen needs to hit the h2-pawn as well as the g3-square. 11. a4c5  11... f2h1 