Reversi: Rules, Tips, and FAQ

Play Reversi (Othello) online for free. Place discs to flip your opponent's pieces and control the 8x8 board.

Game Intro

Reversi, also known as Othello in commercial form, is a territory-control game where one legal move can flip large parts of the board. Players place discs to bracket opponent discs in straight lines, turning them to their own color. Because every move changes both material and mobility, the game is less about grabbing discs early and more about controlling future options. Endgames are especially tactical, and strong players think in phases rather than chasing immediate count leads.

Why Reversi Is Worth Playing

Reversi remains popular because it rewards repeatable skill: reading patterns, choosing stronger options under pressure, and learning from previous mistakes. This page is designed to be practical, not generic. You can use the rules to get started quickly, apply strategy tips to improve consistency, and use the FAQ to troubleshoot common errors that slow progress for new players.

How to Play

  1. On your turn, place a disc on an empty square that brackets one or more opponent discs between your new disc and an existing disc.
  2. All bracketed opponent discs along horizontal, vertical, and diagonal lines are flipped to your color after the move resolves.
  3. If no legal move exists for you, your turn is passed. The game ends when neither player has a legal move remaining.
  4. Winner is the player with more discs at the end, but early disc count can be misleading during the opening and midgame.

Strategy Tips

  • Prioritize mobility over short-term disc gains. More legal moves means better control and fewer forced blunders.
  • Avoid giving away corners. Corner ownership is permanent and often determines edge stability for the rest of the game.
  • Be careful near corner-adjacent X and C squares early; these often allow your opponent to claim the corner safely.
  • Limit frontier discs, the pieces touching empty squares. Low frontier positions are harder for opponents to attack.
  • In the endgame, count parity and available regions. Move-order control can force the final swing in disc totals.

Frequently Asked Questions

Why can I be behind early and still win?
Early disc advantage often means overexposure. Efficient play focuses on mobility and stable regions, then converts late.
Are corners always the best move?
Almost always. Corners cannot be flipped and usually secure nearby edges, making them the highest-value squares.
What is mobility in Reversi?
Mobility is the number and quality of legal moves available. Strong mobility gives tactical freedom and reduces forced errors.
How do I improve quickly?
Study corner patterns and corner-adjacent traps first. Those motifs decide many games before final counting begins.

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