Gomoku

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

Place your marker on any unoccupied spot of the board. Strive to create a sequence of 5 markers in a sequence, either sideways, vertically, or diagonally. Block your rival from completing their own row of 5. Switch setting markers with your rival until one player achieves in making a line of 5. Keep in mind that the game ends immediately when a row of 5 is formed, with no need to occupy the entire board.