Fischer would win when both 15.  Simply because Fischer developed his game very early.

Th question is who would win at the height of their powers and I say Carlsen.

I say Carlsen wins at 15.

Fischer would have found the conditions unacceptable and refused to play.

Boxing?

Swimming? Bobby took up swimming as part of his physical regimen for winning the title from Spassky.

SWIMMING, AY:  he did say the mind and body are one!

I believe Carson will defeat Fischer

U can't compare B. Fischer with M. Carlsen, Fischer is obviously plays better than carlsen and always will be better than carlsen, Fischer or Kasparov are the best in history so dnt compare the legends with the young carlsen.

Bobby Fischer.

When's the match?

I believe Fischer is dead.

All right... how about ZOMBIE Bobby Fischer vs Magnus Carlsen?

Does he lurch around groaning "Brainsssss"... or "Pawnssss"?