supergrandmaster

Noun

supergrandmaster (plural supergrandmasters)

1. (rare) A particular grandmaster whose proficiency in chess or in general is notably greater than that of average grandmasters.
   • I'm running two fine victories by Gligoric over two of the better U.S. international masters — Bernard Zuckerman and Norman Weinstein. In both it’s easy to see why a supergrandmaster can beat international masters on most occasions.1975, The Daily Colonist (1975-05-25), University of Victoria, page 18
   • But only, of course, away from the board. There, nothing tells except talent. Chess is, I believe, unique in that it has no element of chance or luck at all; he who plays the better move wins, every time. Incidentally, I say ‘he’, because although there are some formidably powerful women players...1988, Bernard Levin, All Things Considered, J. Cape, →ISBN, page 173