Gameplay Rules:

• You play as Stone X (Glossy Pink) and the AI plays as Stone O (Glossy Blue).
• Players take turns placing a single stone on any empty cell of the grid.
• The winner is the first player to form an unbroken chain of 5 stones horizontally, vertically, or diagonally.
• Board Size Alert: The 5-in-a-row rule applies to all sizes, including smaller boards.

Game Support & Assisting Tools:

• Undo: Reverts the board to your previous turn (AI and player stones removed). Limits 1 use per game. You can watch a rewarded ad to get additional Undo opportunities.
• Hint: Highlights the strongest calculated grid coordinates for your turn. Standard hint requires watching a voluntary rewarded ad.

Advanced Scoring System: