page_title: Cylinder chess
section_title: Horizontal Cylinder chess and Toroidal chess
hierarchical_section_title: Cylinder chess / Horizontal Cylinder chess and Toroidal chess
caption_attribution_description: English: A toroidal chessboard. Chessboard made by Emanuela Ughi (University of Perugia). Italiano: Scacchiera toroidale, realizzata da Emanuela Ughi (Università di Perugia).
context_page_description: Cylinder chess is a chess variant with an unusual board. The game is played as if the board were a cylinder, with the left side of the board joined to the right side. According to Bill Wall, in 947 in a history of chess in India and Persia, the Arabic historian Ali al-Masudi described six different variants of chess, including astrological chess, circular chess and cylinder chess.
  Cylindrical board is also used in chess problems.
context_section_description: In Horizontal Cylinder chess, first and last rank are connected. In Toroidal chess the board has the form of a torus. One can get a toroidal board by connecting the first and last ranks of the cylindrical board. On the toroidal board, even king and queen can't checkmate a lone king, but two rooks and a king are sufficient.
  See the Torus Chess link below for a toroidal variant that can be played, with an explanation of moves and strategy. The adjacent diagram shows the starting position for play on a standard board, using toroidal geometry.
caption: Toroidal chessboard
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