The XO is collection of classic and non-classic board games as amazons, ataxx, barrier,Cats and Dogs, cephalopod,checkers, clobber, entropy, shashki , international checkers, gomoku,LOA, renju, pente, keryo-pente, connectris, othello, stack4, 3 Musketeers and more. Features: You can play with different set of rules; customize board, colors, stones; work with database of games; save games in file using different formats; create list of openings and more...