Carlsen's opening play was a success: the position is equal. Compared to normal Queen's Gambit Declined positions, the light-squared bishops have been exchanged and this clearly favors Black: the position is simplified and the c4-square is weakened after White's typical plan of advancing the pawn minority on the queenside.
1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... d7d5  4. c4d5  4... e6d5  5. c1g5  5... f8b4 Another recent opening trend, spicing the game a bit compared to the more solid 5...Be7. 6. e2e3  6... h7h6  7. g5f4 A rare move that has been played by Keymer before. 7... c8f5  8. f1d3  8... f5d3  9. d1d3  9... c7c6 Carlsen improves Black's play compared to the earlier Keymer game. 10. g1e2  10... f6h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true] 11. f4e5  11... b8d7  12. h2h3 Creating a retreat route for the bishop. 12... h5f6  13. e5h2 