1. e2e4  1... c7c6 Due to the match situation, I expected this pawn moving one square more forward. 2. d2d4  2... d7d5  3. b1d2  3... d5e4  4. d2e4  4... c8f5 The good old Caro-Kann main line. 5. e4g3  5... f5g6  6. h2h4  6... h7h6  7. g1f3  7... e7e6 The same move Carlsen chose in his first world championship match against Anand in 2013. 8. f3e5  8... g6h7  9. f1d3  9... h7d3  10. d1d3  10... b8d7  11. d3e2  11... g8f6  12. e1g1 As far as I know, this move has been tried just once before, in a correspondence game. Usually White doesn't castle short after playing h2-h4, but the current game shows this plan is also interesting. 12... f8e7  13. f1d1  13... e8g8  14. c2c4  14... d8a5 A new move. I'm not sure this is a good square for the queen. This is a critical moment: White must decide on a plan of action, and there are several promising continuations. 15. c1f4  15... a8d8  16. d1d3  16... d7e5 [%c_effect e5;square;e5;type;GreatFind;persistent;true] 17. d4e5 