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.
Go equipment
Go stones, or "go-ishi" , are round objects placed on the board. They are colored either black or white, for each player, and normally number 181 for black and 180 for white (or sometimes 180 for each).