Reversi
Reversi is a board game for 2 players that takes about 10 minutes. Sandwich your opponent's discs to flip them; the most discs at the end wins. Free. In-browser. No account.
Play over time
Reversi in 30 seconds
- Set upFour discs sit in the middle of the 8×8 board, two black and two white, crosswise. Black starts.
- Take turnsPlace one disc so it sandwiches your opponent's. Every disc you sandwich flips to your colour. The last move shows a red ring on the placed disc and red dots on the flipped ones.
- PassingA player with no legal square passes automatically, and the other player goes again.
- WinThe game ends when the board is full or neither player can move. The most discs wins.
At a glance
| Item | This game |
|---|---|
| Players | 2 players |
| Play time | About 10 min |
| Type | Board |
| Ranked play | Yes |
| Practice against the CPU | Yes |
| Price | Free (no account needed) |
| Rights holder | A public-domain classic game |
| Last updated | 2026-09-13 |
How to play Reversi online with friends
- Tap "Play with friends"A party is created with a 6-character code. No account is needed.
- Send a link or QR codeShare it on LINE, or just read the code aloud.
- Everyone opens it in a browserOnce 2 players have joined, the host taps "Start".
Rule highlights
Setup, play, winning, and house rules
Setup
- Two players. You need an 8×8 board and discs that are black on one side and white on the other.
- Start with four discs in the middle four squares — two black and two white, set crosswise.
- Black plays first, white second.
How to play
- Black and white take turns placing one disc each.
- You may only play on a square that sandwiches at least one of your opponent's discs between the disc you place and another of your own — up, across or diagonal.
- Every disc you sandwich flips to your colour on that move. Discs that are not sandwiched do not flip.
- If you have no legal square, your turn passes automatically and your opponent plays again.
- A disc never moves once placed; it only ever flips.
Winning
- The game ends when the board is full, or when neither player has a legal move.
- Whoever has more discs on the board at that point wins.
- An equal number of discs is a draw.
House rules
| Name | Description | Default | Changeable |
|---|---|---|---|
| Show legal squares | Mark the squares you can play on during your turn. | On | Yes |
| Swap who starts | Swap who plays black after each game. | On | Yes |
Related features: Place, Surround or Connect: Strategy Board Games Compared
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FAQ
How many players?
Two. One plays black, the other white.
How long is a game?
About 10 minutes — 60 moves at most, until the board fills up.
What happens when I have no legal square?
Your turn passes automatically. You can never choose to pass.
Can a game be drawn?
Yes. If both players end with the same number of discs, it is a draw.
Can I practise alone?
Yes. Press Play vs CPU to play against the computer.
Is this the same as Othello?
Othello is a registered trademark of Othello Co., used for a commercial edition of the same game. The rules are essentially the same; this site follows the standard starting position (four discs crosswise in the centre) and the usual default of passing automatically when you have no legal move.
Can I play at school or work (unblocked)?
Yes. Reversi runs entirely in your browser, with nothing to download or install, so it works on most school and work networks that block app stores or game downloads. If your network blocks the whole site, ask an administrator to allow boardgamejoin.com.
Is there a 2 player mode?
Yes — Reversi is played by exactly 2 people.
Can I play against the computer?
Yes. Press “Play vs CPU” on the Reversi page to start right away against a computer opponent — no waiting for other players.
Can I play on a phone?
Yes. No app is needed — just open it in a browser. You can join the same party as people on a PC or tablet.
Can I play online with friends far away?
Yes. Start a party and send its invite link. Friends can join in their browsers without signing up.
Is there an app?
This is a free app that runs in your browser. No installation is needed.
Can we play without being online at the same time?
Yes. Choose “Turn-based (told each turn)” and you can make one move whenever you like. We tell you when it is your turn. A Party ends automatically, with no winner or loser, after 45 days without a move.
Rights holder and physical edition
This is a public-domain classic game. The rules follow the standard reference rules.
Related games
Same type (Board)
Same player count
Last updated 2026-09-13 · Run by Qdan, Inc.