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Reversi (Othello)

Flip your opponent's discs — you are Black, CPU is White. Most discs wins!

2
You
Your turn
2
CPU
Game Over
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About Reversi (Othello)

The classic disc-flipping strategy game. You play as Black, the computer plays as White. Place your disc to outflank your opponent's discs — any of their discs sandwiched between your two become yours. The player with the most discs at the end wins.

How to Play

  1. You play Black. Click a highlighted cell to place your disc.
  2. You must place where at least one opponent disc is flanked.
  3. All flanked opponent discs flip to your color.
  4. The CPU automatically plays White after your move.
  5. If you have no valid moves, your turn is skipped.
  6. The game ends when neither player can move.

Controls

  • Click a highlighted cell — Place your disc
  • New Game button — Start a fresh game

Frequently Asked Questions

The CPU uses a greedy strategy — it picks the move that flips the most of your discs. It's a solid but beatable opponent.
Your turn is automatically skipped and the CPU plays. If neither player has moves, the game ends and the player with more discs wins.
Yes — small dots appear on cells where you can legally place a disc on your turn.