Hueco blocks, second block. Sit start the crack trending left using the nice pocket for your right hand then up. Looks like a duplicate of Cube Root.

james.f.williamson 08/Jul/13 -
Chriswo770 ?/Mar/12 -
mattnuttall ?/Mar/10 Sent O/S
johnwilson123 ??/2009 -
High f6C
Mid f6C
Low f6C
High f6B+
Mid f6B+
Low f6B+
High f6B
Mid f6B
Low f6B