Chess boxing, or chessboxing, is a hybrid sport that combines two traditional disciplines: chess and boxing. Two combatants play alternating rounds of blitz chess and boxing until one wins by checkmate or knockout. It is also possible to win by time penalty as in normal chess, and by boxing decision if there is a draw in the chess round.
A chess boxing match in Berlin, 2008
A chess round in a chess boxing match in 2008
Fast chess, also known as speed chess, is a type of chess in which each player is given less time to consider their moves than classical chess time controls allow. Fast chess is subdivided, by decreasing time controls, into rapid chess, blitz chess, and bullet chess. Armageddon chess is a particular variation of fast chess in which different rules apply for each of the two players.
Spectators watch as a street chess player "Russian Paul" (left) plays bullet chess with Jonathan Corbblah in Union Square, Manhattan.
Magnus Carlsen (left) playing GM Dennis Wagner (right) at the 2015 FIDE World Chess Rapid and Blitz Championship in Berlin, at which Carlsen retained the title World Rapid Chess Champion
Blitz World Champion Alexander Grischuk (right) in Berlin, 2015, with runners-up Vladimir Kramnik (center) and Maxime Vachier-Lagrave (left)
