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We've seen computers play chess and beat grand masters. We've seen computers drive a car across a desert. But interestingly, playing chess is easy, but having a conversation about nothing is really difficult for a computer.

I don't look at computers as opponents. For me it is much more interesting to beat humans.

I miss video games where the jump-kick was the trickiest combo to master.

When I played Bobby Fischer, my opponent fought against organizations - the television producers and the match organizers. But he never fought against me personally. I lost to Bobby before the match because he was already stronger than I. He won normally.

I think I came up in fighting in a really technical way. If you've ever seen my fights, you know I love distance, I love technique.

I was world champion. For me, chess is my life. It is everything.

I fought a boxer who everybody said I couldn't beat - Sugar Ray Leonard. They said he was faster than me. That he was the best of the best. And I beat him.

I beat Larry Holmes and George Foreman. I whupped Mike Tyson twice. I had my ear chewed off and spat on the ground in front of me. I've seen everything it is possible to see in boxing. I know this business better than anyone. So I live and die by my own decisions.

I was drawn to boxing because I got beat up as a kid. I was the kid with the piano books in a New York neighbourhood.