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You play black and move first.
Outflank the robot in this classic Othello duel - trap its discs to flip them to your color! Learn the objective, get comfortable with the main controls and follow the steps below at your own pace. You play black and move first. Read the practical tips before your next round, and return to the game page whenever you want a quick refresher.

You play black and move first.
Grab the corners first — corner discs can never be flipped back
Consider what your move allows the opponent to do next. A small advantage can be worth keeping if you cannot win immediately.
Reversi is a 3D strategy game in Playtua. Outflank the robot in this classic Othello duel - trap its discs to flip them to your color! You play black and move first. Place a disc so it traps a line of white discs between your discs. All trapped discs flip to black.
Reversi is a board game in which a placed disc can change several pieces at once. You play black and move first, choosing a square that traps a line of white discs between two black ones. The trapped discs flip to your colour, but the same rule gives the robot a chance to change the position again. A turn may be skipped when no legal move exists, and the final comparison of discs decides the winner. The 3D board keeps those changing lines easy to see. Do not judge a move only by the number of discs it flips immediately. Look at which squares the new position makes available to the opponent. Corners can be valuable because they are harder to reverse, while a tempting move next to an open corner can create an opportunity for the other side. Consider the edges and the available legal moves as the board fills. A small gain that keeps useful choices can matter more than a large early capture that gives control away.
You play black and move first.
Place a disc so it traps a line of white discs between your discs.
All trapped discs flip to black.
If you have no valid move, your turn is skipped.
When the board fills up, whoever has more discs wins!
Grab the corners first — corner discs can never be flipped back
Avoid placing discs next to empty corners — it gives your opponent the corner
Edges are valuable but corners are king — prioritize corner access
In the early game, try to have fewer discs — it gives you more move options
Watch for moves that trap discs in multiple directions for maximum flips
The endgame is about maximizing disc count — flip as many as possible
Learn to recognize stable discs (ones that can never be reflipped)
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Download Playtua FreeReversi is one part of the Playtua collection. Explore other game styles alongside its dedicated rules and controls. The collection brings different styles together, so a change of pace is always close by. Explore a category to compare its games, then open an individual game page for the rules, controls and difficulty.
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