The Decamentathlon is a multi disciplined games event that was created as part of the first Mind Sports Olympiad.
[1] The Decamentathlon and Pentamind were an attempt to replicate the ideas of the decathlon and pentathlon from athletics.
The Decamentathlon was originally divided into ten tests in the following events:[2] bridge, chess, creative thinking, draughts 8x8 / checkers, go, intelligence, mastermind, memory skills, mental calculations, othello.
From 2008 the Decamentathlon world championships was held using a backgammon test in the place of bridge.
This view is reinforced by there only having been one non-native English speaker to have won the World Championships, Gert Schnider from Austria.