Variants

Chance Chess
Playing card based game. Offers cards for sale or an online version.
http://chancechess.com/

Charlatan Chess
Describes an alternate version. Outlines new rules, a new gamepiece, and a new board.
http://www.charlatanchess.com/

Mr. Confuzed's 3D Chess
A three-dimensional eight-level rule set.
http://ca.geocities.com/mr_confuzed/

Rules for Dimensionalized Chess
Rules for a three dimensioal version of the game. Includes photos of a three dimensional chess board.
http://www.dimensionalized.com/game/rules4_3d_chess/index.php

Spacechess
Contains spacechess rules, softwares, information about spacechess variants.
http://www.free-hp.com/spacechess3d

World Chess Boxing Organization
Presents event schedules and news.
http://www.wcbo.org/

Guardian Unlimited Sport - Introducing the World's Most Unlikely Sport: Chessboxing
Describes the origin of the sport. <small>(October 31, 2005)</small>
http://sport.guardian.co.uk/news/story/0,10488,1600441,00.html