Support

How can we help?

How to play, answers to common questions, and a way to reach us if you’re still stuck.

Why can’t I play on that square?

Every move has to flip at least one disc. The square must have one or more of your opponent’s discs in a straight line next to it, with one of your own discs at the far end. With legal-move hints on, the squares you can play are marked with a dashed ring.

Why did my opponent go twice?

If a player has no move that flips a disc, they must pass and the other player goes again. The status line under the scores tells you when a pass happens. It’s a normal part of Reversi, and often a sign that someone is winning.

When does the game end?

When neither player can move, usually because the board is full. Whoever has more discs wins. A game can also end early if one side loses every disc.

How do the computer levels differ?

Dawn (easy) plays any legal move at random, which makes it good for learning. Dusk (normal) knows corners and edges are valuable and grabs the best-looking square. Eclipse (hard) looks several moves ahead, tries to leave you short of good moves, and plays the last part of the game perfectly.

How does undo work against the computer?

In Vs Machine, undo rewinds to your previous move, taking back the computer’s reply too, so it’s your turn again. In Pass & Play, undo takes back the last move.

Can I turn off the legal-move hints?

Yes. Open Settings and switch off Show Legal Moves. Sound and haptics each have their own switch there too.

Where’s my game?

It’s still there. Reversi saves your game after every move, so if the app is closed mid-game you can resume it from the main menu.

Does it need the internet?

No. Reversi works fully offline, including against the computer. It never uses the network.

Does it work with VoiceOver?

Yes. Every square is labeled with its coordinate, what’s on it and whether you can play there, and moves and passes are announced. Each disc also carries a sun (Sol) or moon (Luna), so the two sides look different even without color.

Does the app collect my data?

No. There are no ads, accounts or tracking, and nothing leaves your device. See the privacy policy.

How to play

The rules

Setup

Reversi is played on an 8×8 board. There are two sides: Sol (gold, with a sun) and Luna (violet, with a moon). The game starts with two discs of each color in the center square, placed diagonally. Sol moves first.

Modes

Vs Machine: you play Sol against the computer at Dawn (easy), Dusk (normal) or Eclipse (hard).
Pass & Play: two people take turns on one iPhone or iPad.

Making a move

Place one disc of your color on an empty square.
The move must outflank at least one opposing disc: those discs have to lie in an unbroken straight line between your new disc and another of your discs.
Lines can run horizontally, vertically or diagonally, in any of the eight directions.
Every outflanked disc flips to your color. If one move outflanks several lines, all of them flip.

Passing and the end of the game

If you have no legal move, you pass and your opponent moves again. You can’t pass while you have a legal move.
The game ends when neither player can move. The player with more discs wins; equal counts are a draw.

Strategy tips

Corners are gold. A disc in a corner can never be flipped.
Mind the squares next to corners. Playing there early often hands your opponent the corner.
Fewer discs can be better. In the middle of the game, keeping your options open matters more than flipping lots of discs.

Handy extras

Legal-move hints: dashed rings show where you can play. Switch them off in Settings.
Undo: take back a move. Against the computer it rewinds to your previous move.
Auto-save: your game is saved after every move and can be resumed from the main menu.
Settings: sound, haptics, hints, computer level and the rules, all in one place.