Pyramid Poker is a two-player design that consists of 54 wooden rectangular blocks, 52 of them with the standard card deck distribution (2-A in four suits) on one side and two of them with a pharaoh on one side.
Quarto! has a 4×4 board and 16 pieces. Each piece has four dichotomous attributes – color, height, shape, and consistency – so each piece is either black or white, tall or short, square or round, and hollow or solid. The object is to place the fourth piece in a row in which all four pieces have at least one attribute in common. The twist is that your opponent gets to choose the piece you place on the board each turn.
In Quartex, players take turns placing a tile next to other tiles already in play, growing an expansive tile field on the table. Each tile depicts one-quarter of a symbol on each corner. When you place a tile, the corners of your tile must match the corners of the adjacent tiles. If your tile provides the fourth corner of a shape, thereby completing it, you earn a point token of that color. At the end of your turn you draw a new tile, and the game ends once all the tiles have been placed or no one can add a tile to the field.
In Battle Sheep (first released as Splits), players start the game by constructing the board from identical four-hex tiles, then each player places his/her tall stack of discs on one of the border hexes. Players take turns removing some number of discs from the top of one of their stacks, moving that new stack of discs as far away as it can go in a straight line. Players must leave at least one disc behind when moving, so the board gradually fills up and movement opportunities become more and more scarce. The player occupying the most spaces at the end of the game wins!