Should Caruana Have Played For The Win?

Play the game through as see what you think. Post your thought......

[Event "Candidates 2016"]
[Site "Moscow, Russia"]
[Date "2016.03.16"]
[Round "5.4"]
[White "Aronian Levon (ARM)"]
[Black "Caruana Fabiano (USA)"]
[Result "1/2-1/2"]
[ECO "A77"]
[LiveChessVersion "1.4.8"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. e4 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Nbd7 11. Qc2 Ne5 12. b3 Bg4 13. Bxg4 Nfxg4 14. Bb2 a6 15. h3 Nf6 16. f4 Ned7 17. Nc4 Nb6 18. Rae1 Nxc4 19. bxc4 Nd7 20. e5 dxe5 21. f5 b5 22. Ne4 Nb6 23. Bc1 Nxc4 24. d6 gxf5 25. Rxf5 Nxd6 26. Bg5 Qa5 27. Bd2 Qd8 28. Bg5 Qa5 29. Bd2 Qd8 30. Bg5 1/2-1/2