Diving chess

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Diving chess is a sport in which chess is played underwater. It was invented by Etan Ilfeld;^[1] and, since 2013, it has been included as one of the disciplines in the annual Mind Sports Olympiad.^[2]

Rules

Diving chess is played at the bottom of a swimming pool, using a chessboard with magnetic chess pieces. The players dive underwater to observe the position and consider and play their move before they resurface to take a breath. When one player resurfaces, it is the turn of the other player to dive.^{[clarification needed]}

Such chess games last on average one hour, where the combination of physical and intellectual performance is a challenge: to manage one's oxygen levels while making good chess moves.

Players are not allowed to use any oxygen-supplying device, but they may wear diving masks or swimming goggles. Also, they used to be allowed to use a weight for easier sinking; however, as of 2022, no weights are allowed.^[3]^[4]

World Championships

Games	Date	Location	First Female	First Male
MSO
MSO	2016-			Rajko Vujatovic, Etan Ilfeld
MSO	2018-
?
DCWC	2022-	London, UK
DCWC	2024-
DCWC	2026-05-21	Tarnowo Podgórne, Poland^[5]	Anna Andrzejewska, Poland	Paulius Pultinevicius, Lithuania

MSO … Mind Sports Olympiad
DCWC … Diving Chess World Championships

External links

Videos of the World Dive Chess Championships in 2016, 2018, 2022
Website Diving Chess

References

^ "Dive Chess World Championships". Reuters. 16 Aug 2022. Retrieved 2024-07-15.
^ "Dive Chess World Championships". Screenocean. 31 July 2018. Retrieved 2022-08-15.
^ Nadja Wittmann (2018-09-12). "Diving Chess in London". Chess News. Retrieved 2022-08-15.
^ "Ultimate battle of minds and lungs at Diving Chess World Championships". Euronews. 15 August 2022. Retrieved 2022-08-15.
^ "Polen: Weltmeisterschaft im Unterwasserschach". orf.at (in German). 2026-05-21. Retrieved 2026-05-21.

Chess variants (list)

Orthodox rules

Different starting position	Fischer random chess Displacement chess Transcendental chess
Different number of pieces	Dunsany's chess Handicap
Unorthodox board	Balbo's game Circular chess Cylinder chess Double chess Grid chess Hexagonal chess (Cross chess, Masonic chess) Infinite chess Millennium 3D chess Minichess (Los Alamos chess) Rhombic chess Spherical chess Three-dimensional chess Triangular chess

Unorthodox
rules with
traditional
pieces

Standard 8×8 board	Andernach chess Atomic chess Beirut chess Checkless chess Chessplus Circe chess Crazyhouse Cubic chess Dynamo chess Extinction chess Hostage chess Knight relay chess Legan chess Losing chess Madrasi chess Monochromatic chess Patrol chess Portal chess Progressive chess Three-check chess Way of the Knight
Multimove variants	Avalanche chess Kung-Fu Chess Marseillais chess Monster chess Progressive chess
Elements of chance	Dark chess Dice chess Knightmare Chess Kriegspiel Penultima
Unorthodox rules on an unorthodox board	5D Chess with Multiverse Time Travel Alice chess Apocalypse Chad Chessence Congo Diplomat chess Dragonfly Jeson Mor Parallel worlds chess Rollerball

Unorthodox
rules using
non-traditional
pieces

Standard 8×8 board	Baroque Berolina Chakra Chess with different armies Duell Falcon–hunter chess Grasshopper chess Musketeer chess Pocket mutation chess Cheskers
Compound pieces	Almost chess Capablanca Chess Capablanca random chess Gothic chess Grotesque chess Ladorean chess Maura's Modern chess Schoolbook chess Seirawan chess Univers chess Chancellor chess Grand Chess Embassy chess Janus Chess Maharajah and the Sepoys Modern chess Tutti-frutti chess
Unorthodox boards and pieces	2000 A.D. Chesquerque Chess on a really big board Courier-Spiel Dragonchess Gess Omega Chess Stratomic Dekle's triangular chess Wildebeest chess Wolf chess

Multiplayer

Inspired games

Chess-related
games

Historical	Chadarangam Chaturaji Chaturanga Courier chess Grant Acedrex Semedo Shatranj Short assize Great chess Tamerlane chess Great chess Completed Turkish Great chess
Regional	Janggi variants Makruk Senterej Shatar Shatra Shogi Chu shogi Dai shogi Other variants Sittuyin Xiangqi Jungle Banqi Manchu chess Game of the Three Kingdoms Game of the Three Friends Game of the Seven Kingdoms Other variants

Software

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