How long does strategy need to win for for it to be winning? Or from a different perspective: How original would it have to be? If not that much then it migh

How long does strategy need to win for for it to be winning? Or from a different perspective: How original would it have to be? If not that much then it might have looked like a Commodore C64 or a Radio Shack TRS80. I think originality is worth something though and would rather point at an Amiga or a Sun SPARCstation but come to think of it they're not around anymore either.