Premise: Deep Blue was a chess-playing computer developed by IBM . The Fédération Internationale des Échecs or World Chess Federation is an international organization that connects the various national chess federations around the world and acts as the governing body of international chess competition . Garry Kasparov . He continued to hold the `` Classical '' World Chess Championship until his defeat by Vladimir Kramnik in 2000 . In spite of losing the world championship , he continued winning tournaments and maintained a number-one world ranking until his retirement from professional chess .
Hypothesis: Garry Kasparov has yet to play chess.
Label: CONTRADICTION