Originally posted by delnz
[funny - i played the same opening as white last night OTB and lost too...]
One thing i was wondering - when you get down to about move 56 for Black. Did you think of simplifying by taking the N, RxQ, then promote the pawn. Or does the pawn promotion threat work to your advantage by tying down the N?
The piece swap would give you a Q+B+pawn against R+B ending
Yes, that option was definitely on but I was more concerned about the white rook at this time and intended to take that, which I eventually did on move 62. The N was anyway tied down so was more of a decorative piece at this time and losing a charging queen for that somehow did not look correct to me.
Also, as per the annotations, with perfect play I would have ended up with 2 queens on Blacks move 62. leading to 2Q+B+P vs R+B+N