What happens when you try to Block a Greatsword

Sometimes I make videos because I want to educate the general public. I find that a lot of people seem to think that Greatswords can be quite easily parried, especially when fighting multiple opponents, so other people can swarm the greatswordsperson. It's not a weird thing to assume, but I also don't think people realise how powerful and fearsome a greatsword can be. So we tested the hypothesis that you really can't parry a greatsword and well... I didn't really manage any truly succesful parries. XD P.S. Some hits look a bit gnarly, but the Cobra mask does its job really well. :) #historical #fencing #hema #greatsword #montante #zweihander #experiment