The answer is Garry Kasparov.
Nobody said that exact quote. There is a similar famous quote however, "Never underestimate the heart of a champion". Which was said by former US basketball player and coach, Rudy Tomjanovich.
"Note" is a rhyming word for quote.
Roald Dahl
Simon Armitage
Notre Dame
My friend Nicole wrote a quote about Rosa Parks
Roald Dahl wrote "Danny the Champion of the World" in 1975.
John F. Kennedy wrote that quote.
Witch person wrote the quote "the game isn't over until you want it to be?
Ken Faught
boat,wrote,coat,quote, ;)