5m. Originally graded 4b however by popular consensus the grade has been changed to very difficult.

ClimberDateStyle
Fellmonkey 02/Oct Solo O/S
Vixie 09/Apr Solo β
with Ian, Matt
shaun hunt 16/Jul/15 Solo O/S
Ste Ridd 16/Jul/15 Solo
mikecollins 16/Jul/15 Solo
Jimmy1976 23/Jun/15 Solo O/S
Climbster 24/Sep/14 Solo O/S
freemanTom 08/Sep/13 Sent
with Amy Till
Hidden 01/Aug/13 Sent O/S
Simonj 31/May/13 Solo O/S
Matthew Ferrier 07/Jun/12 Solo O/S
DGY 23/Apr/12 Lead
with John
flo78 01/Apr/12 Sent β
Hidden 20/Apr/11 Solo
Ste Ridd 20/Apr/11 Solo
with All The Lads
Lordcarr 23/Jan/11 Solo O/S
with Mark Wilson
Hidden 07/Jul/10 Solo
DGY 11/May/10 Lead β
with Barbara & Jon
kickaha4 21/Mar/10 Sent O/S
Hidden ??/2010 Sent
Hidden ?/Oct/09 Sent
ritid 22/Jul/09 Solo O/S
padski ??/2009 -
DerwentDiluted 21/Jun/08 Solo
21dono 30/Dec/07 Solo O/S
Matt Bill Platypus 31/Jul/07 Solo O/S
with Solo
pretty_green 31/Jul/07 Solo
Will Smith 02/Jan/07 Solo O/S
storky 17/Dec/06 Solo
Simon Caldwell 30/Sep/06 Solo O/S

More like Diff than 4b

with Carmen
Hidden ?/Jul/03 Solo O/S
guisboro andy ?/May/00 -
Steve Crowe ?/Oct/99 Solo
crater 29/Feb/96 Solo O/S
Pete Pozman 05/Aug/88 Solo O/S
kato'sdad ??/1988 Solo
johnwright 20/Sep/86 Solo
babymoac 03/Nov/74 -
Voting
High HVD
Mid HVD
Low HVD
High VD
Mid VD
Low VD
High HD
Mid HD
Low HD
Style of ascent
Soloed
Bouldered
Lead
Not Set
Onsighted
Flashed (β)
Not Set