Black played first, and the players took turns laying rocks at the empty point, no forbidden steps like Renju. The winner is the first player to get 5 rows of unbroken, horizontal, vertical, or diagonal stones.
There are two modes in this Gomoku app, one is playing with AI, the other is playing with the closest colleagues.
When playing with AI, there are three levels, from easy to difficult. Please note that AI may take a long time to find next steps if the level is most difficult and your device is old enough.