📖How to Play

📜Rules

1. Turn-taking

• Players alternate turns, with the "X" player going first.

2. Marking the Grid

• On each turn, the player places their mark (X or O) on any empty space on the grid.

3. Winning Condition

• A player wins by placing three of their marks in a row. The row can be:
• Horizontal: 3 marks in the same row.
• Diagonal: 3 marks in a diagonal line (either top-left to bottom-right or top-right to bottom-left).

4. Draw (Tie) Condition

• If all spaces on the grid are filled and no player has three marks in a row, the game ends in a draw.

5. Game Over

• The game ends when:
• One player wins by aligning three marks in a row.
• All spaces are filled and no one has won (a draw).

💡Tips for Play

• Start in the center or corners: The center and corners offer more opportunities for creating multiple winning lines.
• Block your opponent: If your opponent is about to complete a row, try to block them by placing your mark in that spot.

🧠Strategy Deep Dive

Against easy AI, fork creation wins games—set up two winning threats so the opponent can block only one. Medium AI punishes center-first openings; respond with corner parity tricks that force draws when played perfectly. Hard AI is unbeatable in the classical sense; your realistic goal is a draw, which still demonstrates mastery of optimal tic-tac-toe theory.

Playing human-style rounds on easy before jumping to hard teaches pattern recognition faster than grinding losses on impossible difficulty.

🔧AI Difficulty Notes

Beginner mode occasionally leaves winning lines open on purpose. Medium mode blocks immediate threats but misses double-threat setups. Hard mode evaluates the full game tree, making it a trustworthy sparring partner when teaching children why center control matters on a 3×3 board.