A Reversi program featuring: Computer Opponent Maximum search depth and time are configurable Six skill levels Custom skill setting allows you to set parameters used Multithreading keeps game responsive while computer thinks Network Play Play a friend across the Internet Integrated chat Send in-progress game to your opponent Save and restore network games Complete Undo/Redo Multi-level undo The entire explored tree is saved so you can explore different 'what-if' scenarios Save/Restore Games Preserves undo history Saves player information Configurable board size Board sizes from 4x4 to 20x20 Unregistered version is fully functional Cheat mode allows you to create any desired board position