Neanderthal (F9b) is the project that was featured in the BigUp Dosage V film (UKC Review) and climbs the whole way out of the massively overhanging limestone cave.
From Daila Ojeda's blog:
"After one rest day he [Chris] arrived to the anchor to the hardest route in the cave Neanderthal F9b"
The route is described as "a sustained F9a to a 2 finger pocket, followed by an all out dyno: then, several powerful boulder problems, no rests".
Chris' ascent was filmed by the BigUp Productions Crew.
- You can read more info on the route and see some photos on 9b