Gomoku

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

Place your stone on any unoccupied point of the board. Strive to form a line of 5 stones in a line, either horizontally, vertically, or diagonally. Prevent your opponent from completing their own row of 5. Switch setting pieces with your rival until one contestant wins in creating a line of 5. Keep in mind that the match finishes immediately when a sequence of 5 is made, with no need to cover the entire board.