python scramble hack

274 bytes its a world record, I guess. (until someone do it on perl...) c,a,l,f,g=__import__('random').choice,['FB','UD','RL'],[],lambda y:lambda x:x in y,lambda y:lambda x:x not in y;h=[l.append(c(filter(g(l[-1:]),c(filter(g(filter(f(a),[''.join(l[-2:][::x]) for x in [-1,1]])),a))))) for u in...