Reversi is brought to life in full 3D with this free game for the Mac.
Reversi [OS X]
Free, Version 1.2.1
Reversi is brought to life in full 3D with this free game for the Mac. Features include:
Play against the computer or a friend.
Five difficulty levels for the computer opponent: from novice to expert.
Unlimited undo of your moves.
Highlighting of legal moves.
Highlighting of the last piece placed.
Move suggestions.
Automatic saving of the current game when you quit.
Requirements
OS X 10.5 or later (Intel only).
Downloads
Reversi (OS X)  417 kB
New in Version 1.2.1
Fixed drawing problems when running on OS X 10.8 (Mountain Lion).
http://www.muryan.com/reversi/index.html