Anand offers a pawn to set up a fortress in a position with opposite-colored bishops.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... f8c5  4. c2c3  4... g8f6  5. d2d4 A topical alternative to the Giuoco Pianissimo that arises after 5.d3. 5... e5d4  6. e4e5  6... d7d5  7. c4e2 A sideline. 7... f6e4  8. c3d4  8... c5b6  9. b1c3  9... e8g8  10. e1g1 A typical and important position to understand in the system with 5.d4. As so often is the case, the pawn structure dictates the plans for both sides. Black, sooner or later, will have to play f7-f6 to brake White's advanced post and create some room for his pieces. White then can take the pawn or allow Black to take, or even play f5. Another important idea for White is to play Na4 and grab the bishop pair. The game is full of complex positional ideas. 10... c8e6 Of course, there are interesting alternatives to this move, like 10...Bg4 or the immediate 10...f6. 11. c3a4  11... f7f6  12. c1e3  12... g8h8 A new move. It's not really clear if this move is necessary. 12...Bg4 has been tested and approved in correspondence games. 13. a2a3 A mysterious pawn move, but if White is going to capture on b6, then it's useful to have the pawn protected on a3. 13... f6e5 A mistake, since this opens the position for the bishop pair and allows White to advance the kingside pawns. 13...f5 or 13...Bg4 are better. 14. a4b6  14... a7b6  15. f3e5 The correct way to capture, so the kingside pawns are free to walk. 15... e4d6  16. f2f4 A very natural move. Also possible is 16... e6f5  17. d1b3  17... f5e4  18. a1c1  18... c6a5  19. b3c3 