Gomoku: five stones in a row

Gomoku, also known as Five in a Row, is a strategic two-player board game. Players take turns placing their stones—black or white—on a grid, traditionally 19x19 or 15x15 in modern competitive play. The objective is to create an unbroken line of five stones in any direction: vertically, horizontally, or diagonally. Originating in China over two millennia ago, Gomoku has numerous rule variations, adding depth to gameplay. Today, it is played worldwide and features in organized tournaments. Its blend of simplicity and strategic depth makes it a timeless classic for casual and competitive players alike.