Disclosed is a dual-board puzzle comprising a first game board portion; a second game board portion; and a plurality of playing pieces NP. The first game board portion and said second game board portion are mirror images of one another. Each game board portion includes a top surface having a number ND of depressions therein. The plurality of playing pieces NP equals the number of depressions ND −1.

Disclosed are a multi-dimensional baduk board and an online multi-dimensional baduk system implemented to have a plurality of baduk faces and to play baduk in a more diverse and interesting way, having the advantage of overcoming the limitations of a two-dimensional baduk board in the related art to give more interest to users than baduk in the related art and being helpful in terms of developing a user's brain, and having an effect that it is possible to play multi-dimensional baduk online by using such a baduk board structure.

Disclosed are a multi-dimensional baduk board and an online multi-dimensional baduk system implemented to have a plurality of baduk faces and to play baduk in a more diverse and interesting way, having the advantage of overcoming the limitations of a two-dimensional baduk board in the related art to give more interest to users than baduk in the related art and being helpful in terms of developing a user's brain, and having an effect that it is possible to play multi-dimensional baduk online by using such a baduk board structure.

An exemplary embodiment of a chess game variant comprises a game board and four sets of eighteen chess pieces each. The game board has an inner zone and four panel zones thereabout. The inner zone presents eighty-one playing positions in a nine-by-nine square array. Each panel zone presents twenty-seven playing positions arranged in a three-by-nine rectangular array. The board includes universal rows which adapt for chess-like play on an unbalanced board. Each set of game pieces include institutional pieces and citizen pieces. Most of the citizen pieces are matched in status with corresponding institutional pieces, and are subject to rules of promotion which are driven, in part, by these status relationships. Most of the game pieces include covert or overt markings, which also drive game play and strategy. In certain aspects of game play, a player may take control of the game pieces of one or more opposing players.

An exemplary embodiment of a chess game variant comprises a game board and four sets of eighteen chess pieces each. The game board has an inner zone and four panel zones thereabout. The inner zone presents eighty-one playing positions in a nine-by-nine square array. Each panel zone presents twenty-seven playing positions arranged in a three-by-nine rectangular array. The board includes universal rows which adapt for chess-like play on an unbalanced board. Each set of game pieces include institutional pieces and citizen pieces. Most of the citizen pieces are matched in status with corresponding institutional pieces, and are subject to rules of promotion which are driven, in part, by these status relationships. Most of the game pieces include covert or overt markings, which also drive game play and strategy. In certain aspects of game play, a player may take control of the game pieces of one or more opposing players.