DroidZebra is advanced Reversi program based on Zebra Othello Engine written by Gunnar Andersson. Features:
- difficulty levels from beginner (practice mode) to world-class play
- opening book with more than 500,000 positions
- ability to force specific opening
- practice mode

Reversi is a strategy board game for two players, played on an 8×8 uncheckered board. There are sixty-four identical game pieces called disks (often spelled "discs"), which are light on one side and dark on the other. Players take turns placing disks on the board with their assigned color facing up. During a play, any disks of the opponent's color that are in a straight line and bounded by the disk just placed and another disk of the current player's color are turned over to the current player's color. The object of the game is to have the majority of disks turned to display your color when the last playable empty square is filled.

Developer site on github: https://github.com/alkom/droidzebra/

Recent changes:
Version 1.5.3

- added Korean translation (by Dal Yu)
- enable action bar on devices with API 11+

Developer site on github: https://github.com/alkom/droidzebra