XO is a software that offers a wide variety of classic and non-classic board games such as checkers, shashki, international checkers, and more. It includes popular games like gomoku, renju, pente, connectris, othello, ataxx, and barrier, among others.

The user interface is intuitive, and you can easily switch between games. One of the best features is that the software automatically saves and loads your moves for each game. So, if you need to take a break or close the application, you can pick up right where you left off.
Additionally, XO supports multiple options, making it customizable to your preferences. Some of the games you can play include gomoku, keryo-pente, LOA, Matching Pairs, Minesweeper, Puzzle 15, othello, and samegame. Plus, if you're up for a challenge, you can try out tablut, turkish checkers (dama), xiangqi (Chinese chess), and many more.
Overall, the XO software is a fantastic choice for board game lovers. With its vast selection of games, easy-to-use interface, and intuitive features, you'll be sure to have a great time.
Version 2.8:
Added shogi
Fixed some bugs. Improved interface