Grischuk follows the classical  traditions and develops a piece with every move that he makes.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... g7g6 An interesting  choice. Carlsen does not stick to any solid opening but chooses instead  one of the sharpest Sicilian lines: the Dragon. 6. c1e3  6... f8g7  7. f2f3  7... a7a6 A  rare move. [Turning it into a Dragondorf - ed.]. 8. d1d2  8... h7h5  9. f1c4  9... b8d7  10. c4b3  10... d7c5 