Jawbone easy one this, recently a mate of mine joined at this grade and gave me this - for any x,y,z (Accenture manager): x^3+y^3+z^3-3xyz- (x+y+z)(x^2+y^2+z^2-yz-zx-xy) =Accenture M1 sign off bonusgold star and Xmas card for someone who cracks this, this side of Xmas of course !DC