How to cut a (climbing) rope on a sharp edge

[Brains]

https://www.facebook.com/ukclimbing/videos/10154512844309639/
From UKClimbing
"Michele Caminati has expressed a wish to share the below footage so other climbers are aware of the potential risks of climbing this route and the dangers of rope shearing. Michele would also like to thank Edale Mountain Rescue Team and the emergency services for their rapid response to the incident and professionalism in treating him following the accident. Thanks to Michele for the film."

 

[Madness]

Elder Statesman at Curbar Edge if I'm not mistaken. At least he was fairly close to the ground before the rope totally snapped. He definately needs a faster belayer though.

 

[Mattrees]

First ascent used three ropes to avoid this problem!

TRT?

https://youtu.be/QDTAKVUE_g4

 

[ianball11]

That barndoor move must take some stones.