Do Not Rush to Flip the Most Discs
A lead of three or five discs in the middle of a Reversi game rarely decides the result. Ask instead whether your move gives away a corner, how many legal moves each side will have afterward, and who is likely to control the last few empty squares. Play a game first, then use the replay to find where the position changed.
What are you trying to do in Reversi?
Two players take turns placing black and white discs on empty squares. A move is legal only if the new disc brackets at least one opposing disc along a row, column, or diagonal. Every bracketed disc flips to your color. Once placed, a disc never moves to another square; it can only be flipped by a later move.
If you have no legal move, you must pass. When neither side can move, the player with more discs wins. One point surprises most beginners: flipping more discs in the midgame does not necessarily mean you are ahead. A corner is almost impossible to lose once secured, and greater mobility gives you more ways to avoid bad squares later.
For your first game, slow down before every move. Check all four corners, then count the dotted legal squares for both sides. Even if you lose, the game was useful if you can point to a moment and say, “This move gave away a1.”
For the first game, practice one thing: do not give away a corner
Choose the beginner level. Before every move, scan all four corners. If a corner is legal, compare it carefully; while a corner remains empty, be wary of its neighboring X-square and C-squares. If you make a mistake, undo the move and see why the AI can take the corner next. That lesson matters more than winning your first game.
Why can a large disc lead still disappear?
Flipping a large region in the midgame often leaves more of your discs beside empty squares, opening fresh lines for your opponent. If you have six legal moves and your opponent has only two, you may be five discs behind yet still have more ways to avoid danger and force an awkward reply. That tension between the visible count and real freedom is central to Reversi.
After the game, review only three turning points
First find how the first corner became available. Then find the position before the first forced pass and see whose legal moves were squeezed away. Finally, inspect the endgame move that changed control of the remaining empty squares. AI games are good for undo experiments, shared-device games for talking through ideas, and online rooms for practising careful commitment.
4corners to scan before every move
8directions that may form a bracket
X / Cdanger squares beside an empty corner
Passrequired when no legal move exists
