In chess, a fortress is an endgame drawing technique in which the side behind in material sets up a zone of protection that the opponent cannot penetrate...

Fortress chess (also known as Russian Four-Handed chess) is a four-player chess variant played in Russia in the 18th and 19th centuries. The board contains...

Three-dimensional chess (or 3‑D chess) is any chess variant that replaces the two-dimensional board with a three-dimensional array of cells between which...

notation to describe chess moves. Fischer random chess, also known as Chess960 ('chess nine-sixty'), is a variation of the game of chess invented by the former...

draw In chess, there are a number of ways that a game can end in a draw, neither player winning. Draws are codified by various rules of chess including...

Four-player chess (also known as four-handed chess) is a family of chess variants played with four people. The game features a special board typically...

This is a list of chess variants. Many thousands of variants exist. The 2007 catalogue The Encyclopedia of Chess Variants estimates that there are well...

A chess variant is a game related to, derived from, or inspired by chess. Such variants can differ from chess in many different ways. "International"...

The endgame (or ending) is the final stage of a chess game which occurs after the middlegame. It begins when few pieces are left on the board. The line...

Losing chess is one of the most popular chess variants. The objective of each player is to lose all of their pieces or be stalemated, that is, a misère...