I think your right. Best case scenerio I could work out is your up a pawn or two. Good catch.
today's puzzle (August 15)

The puzzle doesn't work because the computer doesn't play the best move to avoid check mate. If they covered the check with the horse and then sacrificed it you could bring the queen to protect
I wonder if it is wrong of me to just assume that the OP is talking complete crap purely because he called a "Knight" a "horse". Either way, that is most certainly what I have done.
The puzzle doesn't work because the computer doesn't play the best move to avoid check mate. If they covered the check with the horse and then sacrificed it you could bring the queen to protect