You know, i've gotten into plenty of block struggles, but i've never once won a block struggle.
So, as ChannelForThePain said, all you do is hold the block key when a beam comes towards you, i think it has to be strong enough to engage a block struggle or you'll just swat it away, im not sure.
As for how to win a block struggle....i have no idea. Whenever i get engaged in one, i only get pushed back until the beam explodes and i get hurt.
Does anybody know how to/ have any advice on how to win a block struggle?