Gomoku

Connect exactly 5 of the same stones in a row (horizontally, vertically or diagonally).

Put your piece on any unoccupied intersection of the board. Aim to create a row of 5 pieces in a sequence, either horizontally, up and down, or diagonally. Stop your rival from completing their own row of 5. Switch setting pieces with your competitor until one player wins in forming a sequence of five. Remember that the match finishes immediately when a line of five is made, with no need to occupy the entire board.