One of my games illustrates the tactical problems I face. In that game,
I built up an overwhelming position, but my opponent gained unexpected
counterplay and I blundered away a piece and the game.

Analysis of the game is also very much appreciated:

[Event "Prepare for an enjoyable game!!"]
[Site "http://chesscolony.com/chess.pl?bd=3902363"]
[Date "2005.10.11"]
[White "hildanknight"]
[Black "manhattan"]
[Result "0-1"]
[WhiteElo "1200"]
[BlackElo "1577"]
[TimeControl "1/604800"]
[Mode "ICS"]
[Termination "normal"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Qf6 4. Nc3 Nge7 5. O-O a6
6. Ba4 b5 7. Nxb5 axb5 8. Bxb5 Ba6 9. Bxa6 Rxa6 10. Qe2 Ra8
11. Rd1 h6 12. a4 Ng6 13. b3 Bd6 14. Bb2 O-O 15. Bc3 Nf4
16. Qe3 Qg6 17. Nh4 Qg4 18. g3 Ne2+ 19. Kf1 Nxc3 20. dxc3 g5
21. Nf5 Kh7 22. Nxd6 cxd6 23. Rxd6 Rad8 24. a5 Rda8 25. a6 Rfb8
26. b4 Ne7 27. Qd3 Rbd8 28. b5 Qh3+ 29. Kg1 Nc8 30. Rd5 d6
31. c4 h5 32. c5 h4 33. cxd6 Nb6 34. Rxe5 Kg6 35. Rc5 hxg3
36. fxg3 Rdh8 37. Qd2 f6 38. Rc6 Nd7 39. b6 Ne5 40. Rc3 Rac8
41. Re3 Nc4 42. Qd4 Qxh2+ 43. Kf1 Qh1+ 44. Kf2 Rh2# 0-1