Gomoku！

Gomoku is a traditional board game similar to tic-tac-toe, but with a larger 19x19 grid and the objective of getting five pieces in a row. Players take turns placing pieces on the board, and the first player to achieve five in a row horizontally, vertically, or diagonally wins the game. With its simple rules and strategic gameplay, Gomoku is an enjoyable game for players of all skill levels.