Loss of a Chess Game - Classic Trojan Horse in the Endgame

A good example of why one should never ever play with a flag hanging; "trojan horse" (a knight is a 'horse' in russian chess terminology) occurs around 34:00 where I have two bishops, attempt to trap opponent's knight on 'b1', abandon my own pawns on the kingisde, lose them all, and the game. Computer analysis at   http://en.lichess.org/3kP5lrXd