While I think I played a good game with several moves that were inferior, but not bad, Fritz has me playing horribly and winning only on the count of my opponents blunders. I'm sure you all have Fritz, so I'll just post what I think:

 What do you think?

I think that White was totally lost after he played bxc5.  There was no way he could have saved his c5 pawn after the forced exchanges.  He could have planted the knight on square d6 on move 32, but still this would not have saved the game.  The passed pawn on the a file was decisive.  The actual play showed how difficult it was for Black to save the game.  His knight could not move and his King was exposed to attack.     

After the move 25..c5, White could have taken the a7 pawn with his rook.  But I still would have preferred to play Black's position. 

 

Did you check the move list?

27... Qb3 would've picked off the errant knight (28 Ra1 Rd1+).

tonydal wrote: 27... Qb3 would've picked off the errant knight (28 Ra1 Rd1+).

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 True, but when would I get a perfect chance like that to trade queens?

Did you consider 17. ...Nxe4 18. QxN Bg4 gaining back the piece and a better position.

 

This line puts you up a pawn and disolves whites strong centre. I'm not sure how white could avoid taking the Knight with the Queen.

21. c3?

Moving any of the king side pawns would have been bad.  Moving f gets e taken, moving e gets itself taken, moving g opens up a long diagonal, which the which queen controls, and moving the h pawn leaves the row feeling unprotected.

Kingfisher wrote: tonydal wrote: 27... Qb3 would've picked off the errant knight (28 Ra1 Rd1+).

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 True, but when would I get a perfect chance like that to trade queens?

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 You would then be a rook up.  You don't need to trade queens when you're a rook up.