A plurality of geometrically arranged circular depressions are formed in a game board to nestingly receive one or a stack of game pieces. The game pieces, which may be in the shape of discs, are stackable in ascending order reflective of the valuation assigned to each and which valuation is indicated by a raised symbol on the upper surface of each game piece. The lower surface of each game piece includes an indentation configured to mate with a lower valuation symbol formed on the upper surface of another game piece to interlock the game pieces when stacked and regulate the stacking order. To play the game, each of the players is given a set of game pieces. Taking turns, the players attempt to align a specific number of uncovered ones of their game pieces of a common valuation upon the game board and any existing stacks; variations in object and mode of play are contemplated.

A game apparatus comprising a plurality of spherical members, a frame member and detent means for biasing the rotation of the spherical members is disclosed herein. Each spherical member has an axle projecting from it and includes a plurality of indicia disposed about an equatorial periphery thereof. The frame member includes a plurality of stations configured to receive one of the spherical members. The frame member further includes bearing means for supporting the axle of the spherical member so that the spherical member is rotatable in its station. The rotation of the spherical member allows for a player to select a particular display of indicium located on the spherical member. The game apparatus further includes a detent means for biasing the rotation of the spherical member to a preselected position, the position corresponding to a particular display of indicium.

A domino type game is provided having game interlocking pieces formed with matching shapes rather than number dot patterns. In accordance with a preferred aspect of this invention, a playing piece is provided that has a stepped configuration with two generally flat engaging portions lying in two spaced apart planes and joined by a web. An upstanding post having a regular shape is mounted on one surface of one engaging portion, and a socket extends through the other engaging portion to the opposite surface. In at least some of the pieces, the shape of the post and the shape of the socket are different, so that a chain of shaped dominoes may be formed as a game.

A game apparatus for two or more players, comprising a playing board having horizontal ranks and vertical rows forming an array of playing squares, with four sets of playing pieces, each set having distinct indicia disposed upon the front face of the playing pieces, with a border surrounding the array of playing squares on the playing board, and four distinct indicia similar to the indicia on the front face of the playing pieces disposed on the border of the playing board adjacent to each rank and row. There are at least as many playing pieces as there are playing squares in the array, with extra playing pieces withdrawn from play prior to the start of each game. Each player selects six playing pieces, and places one playing piece anywhere on the playing board, selecting a new playing piece from the drawing pile upon completion of each turn. Play alternates between players, until all the playing pieces have been played, without matching any indicia on any of the adjacent squares or adjacent border indicia. The winning player may receive points for each game won. Additional points may be awarded for each playing piece in the other player's hands upon completion of play. Bonus points may also be awarded for three or more identical indicia in each rank or row.

A zero-sum tiling game. A plurality of "domino-like" game pieces include indicia viewable on the top surfaces of the game pieces that correspond to one, or the other, or both of two halves of the game pieces. The indicia forms a binary set. The indicia associated with one half of the game piece may be summed to indicate the value for that type of indicia for that one half of the game piece, while the indicia may more generally be "added" or "summed" overall to obtain an overall value for any desired number of halves. Particularly, it is an object of the game to lay down game pieces in such a way that each piece that is laid down completes a square that consists of four halves, wherein the sum of the indicia for the four halves is zero.