Gomoku
Gomoku, also called "Five in a Row", is an abstract strategy board game. It is traditionally played with Go pieces (black and white stones) on a Go board, using 15×15 of the 19×19 grid intersections. Because pieces are not moved or removed from the board, Gomoku may also be played as a paper-and-pencil game. The game is known in several countries under different names.
Icehouse pieces
The pieces are four-sided pyramids that can nest and stack with pipping from 1 to 3 at the base. A group of three pyramids, one of each size, is called a "trio." Each "stash" or set of Icehouse pieces consists of five trios, or fifteen pyramids (variously called pieces, pyramids, or minions) of the same color and five of each three sizes: five large 3-point pyramids (called "queens" in some games), five medium 2-point pyramids (sometimes called "drones"), and five small 1-point pyramids (or "pawns"). The stacked and nested feature is not used in the original Icehouse game, but is taken advantage of in some of the other Icehouse-based games listed below.