Trade down and get out with the win. There was of course more material to be had if I wanted it, but with an uncastled king and a material advantage -- get to an ending quickly.
20. h6 Qe3xf3 21. gxf3 Ra8c8
I want to encourage the trade down - and I want to keep whites pieces difficult to activate, hxg7 doesn't bother me as it opens up a file. I'd rather activate my king than worry about the light squared bishops activity, and I'd very much like to pin the rook on a1 if I can possibly do that (leaving the knight on c4 stops Nd2).
22. hxg7 Rh8g8 23. f5 Rg8xg7 24. f6 Rg7g6
I'm not overly interested in Rxf6, because the white king is out of the game as long as I leave the Rook here. Now to limit the queenside.
25. Nb1a3 Nc4xb2 26. Ra1c1 Nb2xa4 27. Na3b1
The pin on the knight is effective - and the d7 bishop doesn't need to go anywhere. I'd like to activate my king so I can march my passed d pawn. f6 needs to fall for that to happen.