set
Chess Pieces...
Set, a Chess set.
To bring together people who like to play chess and to learn from one another.
Chess
A three-letter word for chess pieces is "men."
chess
A five letter board game is chess.
sixty four
Garry Kasparov had the highest Elo (FIDE) rating in chess ever recorded with a 2851 set in July of 1999. A link can be found below.
Men. As in "chessmen."
mating
It could be "chess"