Who was he? Was he a human? Is he/she alive!? I don't know but I have seen games where it will say " Rubinstein Variation".... ??? I have no idea.

And, how do you play a grandmaster, if one wishes to play grandmaster?

http://blog.chess.com/qtsii/chess-great---akiba-rubinstein-intro

If you want to play a grandmaster, the easiest way is to be a grandmaster (and compete at tournys). For people who can't get anywhere near the GM level, the best chance to play against a GM is in a simul

Thank you very much bondiggity, it seems I have forgotten that I can simply research such things, I guess I just like posting forums xD