Reversi Web - Online & AI

A free Reversi (Othello) game you can start playing right away. Enjoy AI matches, online matches, and friend matches.
This is the official app of the web game Reversi Web.

■ AI matches
Play solo against AI opponents of every strength.
- Start with the beginner-friendly "Weakest AI", move up through Beginner, Intermediate, and Advanced, then unlock Master, Grandmaster, Luminary, Transcendent — and beyond
- The highest levels run a full-strength search engine that challenges experienced players
- Hints, undo, and position evaluation help beginners learn and experts sharpen their play
- AI matches work offline, too

■ Online matches
Battle players around the world in real time.
- Automatic matchmaking finds opponents close to your skill level
- A rating and 12 ranks from Bronze to Legend make your progress visible
- Climb the leaderboard at your own pace

■ Friend matches
Just send an invite link or QR code to play a two-player game with friends and family.
- Easily set turn order and time controls
- Prefer playing face to face? Pass one phone around with the digital Board mode

■ More features
- Review and share game records; matches are saved automatically
- Per-move time settings (10 seconds to 3 minutes, or unlimited)
- Match history
- Available in English and Japanese

■ What is Reversi?
Reversi, also known as Othello, is a classic strategy board game: trap your opponent's discs to flip them to your color. The rules take a minute to learn, yet the strategy runs deep — fun for kids and adults, beginners and experts alike.

Lightweight and quick to launch. Whether you have time for one quick game or a long ranked session, jump in and enjoy.

* "Othello" is a registered trademark of MegaHouse Corporation.