How to play

Place a black or white stone on an empty intersection of the 15×15 board. Players alternate turns; the first player to connect five or more stones horizontally, vertically, or diagonally wins.

Choose Easy, Medium, or Hard AI, or play with another person on the same device. In an AI match you play Black and move first. Undo removes the most recent pair of moves after the AI has responded.

Possible general benefits

Gomoku can practice sustained attention, visual scanning, planning, pattern recognition, and considering an opponent's next move. These are general recreational activities: game performance is not a cognitive assessment and does not demonstrate a clinical benefit.

Use a comfortable screen size and take breaks if you experience eye strain, headache, frustration, or unusual fatigue.