Quote: BTW, when did Botwinik or Tal dominate the chess field the way Fischer or Kasparov did?
Well everything is relative of course. I'd say Tal dominated in 1959-61. That Botvinnik dominated during his reign, despite the interruptions, was something I thought obvious.
Fischer was at his top 1970-72 and didn't play too much in those years. And after '72 he didn't dominate at all, except the gossip columns... - So did he dominate all that much, really?
Karpov should probably be included, as he did win *a lot* of tournaments during his reign (without cheating!) and even after losing his title he was for many years the only one who gave Kasparov a fight. Actually, their worldch matches and tournament encounters are very close until 1993 when Karpov starts to slowly decline due to age, except for that fantastic Linares tm he had.
But Kasparov is probably the strongest player so far, though there seems to be only one person here who thinks he was the Greatest...
By the way, castlerock, if we should only look at the play on the board as you say, then isn't really Deep Blue (or Hydra etc) the strongest ever - at least over the board?
Or for that matter, any +2700 player combined with a computer should be stronger than Fischer or Kasparov ever was, so maybe the whole discussion is obsolete already...