Believe it or not, at this point a computer analysis claims that I have a small advantage, despite having weaker pieces. It's an advantage that I strengthen with nearly every move.
With the queens off the board all of his threats are mute and I have a pawn storm that will destroy him one way or the other.
42... Rf7a7
?? Supposedly he had no chance at stopping me from promoting this pawn, but without a doubt moving the rook back to the back rank was a better way to defend. He could have been trying to trick me, but it wasn't going to work. All I need to do now is march my pawn into enemy territory.