A Reversi (or sometimes called Othello) game is a simple game between two players on 8x8 board. If a player's piece is captured by an opposing player, that piece is turned over to reveal the color of that player. A winner is declared when one player has more pieces of his own color on the board and there are no more possible moves. This free open source application includes possibility to play vs opponent with different skills or with a friend. Game also has "Setup position", "Undo", "Show possible moves" functions. Application doesn't show any ads and network access is not required for this game
Source code: (https://github.com/mnosov/reversi ).