1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. d2d3 Carlsen has plenty of experience with this flexible move that avoids the Open Variation (where Black takes the e4-pawn). 5... f8c5 The problem with 5.d3 is that Black can develop the bishop to this active square. 6. c2c3  6... b7b5  7. a4b3  7... d7d6  8. c1g5 This pin usually sharpens the game as Black is invited to play h6-g5. 8... h7h6  9. g5h4  9... c5b6 A useful prophylactic move, anticipating White's d-pawn advance. 10. b1d2  10... g7g5  11. h4g3 