I know about that algorithm, better say 'heard' than 'know', actually, but really I think that it`s a bit complex for a simple task like mine, not that is bad or good, it`s just another way to do it. Maybe I would have used it if I know how to implement it, but since I don`t have that cookbook, I just made my own ( simple as it is ). However, thanx for the recipe, if I am going to make a real game ( sallable ) will consider Yates shuffle algorithm