Im get confuse a lot confuse Im sure that this engine is a sort of Rybka clone, but the mos stuning for me is the huge range of result that many people have obtained tested the different versions of this clone, some guy get thi amazing performance from a early version:
I have feeling, that Rybka displays 3 ply less than real. E.g. in combinations Naum gets solution with 3 ply more very often. RobboLite also reveals R3 real node speed = 23x display.