The added stacking rule makes the game more strategic choice, such as more moves or more piece. Although the AI miss obvious opportunity and hardly will go offensive mode, a perfect practice for beginner to understand the rules. And having 2P is a fun choice to play with friends.
Suggestion for improvement
- Giving the player a choice to choose a more difficult AI could give this game more replay value. (example: easy, medium, hard AI for the player to choose so that they can challenge or improve themselves).