Those of you who are giving this one star because you can't beat it on easy are really pathetic. First of all, it's really easy on easy. I've never lost to it on easy when I've been paying attention. If you're really stuck, read the wikipedia article about reversi, and try again, that should get you started. Second of all, that's a terrible reason to give a great, free program one star. It's people like you who are ruining the app store ratings system. Anyway, on hard I'm winning about half the time. The other free game - "Othello" is a little tougher to beat for me, but I think its engine is focusing on a different strategy. However that game is fairly buggy, and it hasn't been updated in a long time, while this one keeps getting better. Also, Morocco has a two player mode, which Othello lacks, and me and my girlfriend have long tournaments when we're bored sitting in a theater or an airplane.