1. e2e4  1... e7e6  2. d2d4  2... d7d5  3. b1c3  3... g8f6  4. e4e5  4... f6d7  5. f2f4  5... c7c5  6. g1f3  6... b8c6  7. c1e3  7... f8e7  8. d1d2  8... a7a6  9. d4c5 Anand releases the central tension immediately. Carlsen chose another move in a recent game. 9... d7c5  10. a2a3 A good, useful move against Black's b5-b4 advance. Castling immediately is also possible. 10... e8g8  11. d2f2  11... b7b6 A difficult choice. Black has two other important moves.