The Observer London, Greater London, England Sunday, August 02, 1992 - Page 18
“Fischer was still able to spot what no one else could: the refutation of the queen sacrifice with which Garry Kasparov defeated Anatoly Karpov in their fifth world championship game.”
“Kasparov makes a bad book even worse and wastes many pages trying to prove that Karpov would have defeated Fischer if they had played a match in 1975. That is impossible as Karpov is hopelessly weak against attacks by knights. That is why he persistently lost to Kasparov and that's why Fischer would have won.” — from Confidential Chess Lessons ©2006, James Schroeder