Chess - could you play like a grandmaster?

I came across the chess game recently, many of you will have seen it before:

There are some moves that a chess grandmaster plays that just would never occur to me. See if you do any better in finding GM Keith Arkell's move:

1. Nf3 Nf6 2. c4 e6


3. Nc3 d5 4. cxd5 exd5

5. d4 c6 6. Bg5 Be7

7. Qc2 g6 8. e3 Bf5

9. Bd3 Bxd3 10. Qxd3 Nbd7

11. Bh6 Bd6 12. Bg7 Rg8

13. Bxf6 Nxf6 14. O-O Qe7

15. a3 Ne4 16. b4 a6

17. Rfe1 f5 18. g3 g5

19. Nd2 g4 20. Ne2 h5

21. Nf4 h4 22. Nxe4 fxe4


White to play?

There is a link that can be found here:
http://www.chessvideos.tv/chess-game-replayer.php?id=32496
 
Now did you find his move? I would never have thought of playing it ;)