Did Morphy really know? GameX

Morphy in the end won this game though the score seems to be lost to history. Do you think he really meant to sac the Bishop? This game just amazes me... I just can't wrap my mind around how the hell he could of figured that this would work. I ran the end of the game through "shootout" in fritz and sure enough black does have a good chance of winning or at worst a draw.