It's not exactly Othello, and it's not exactly easy. This computer opponent seems to have his own set of rules.

INSTRUCTIONS
You will play in turn with your computer and you should be quick and attentive. You will be able to overtake the computer`s spheres only if its spheres are between yours. If not - no points will be added to your score. The difference from the classic Reversi game is that only one chip at a time can be taken. If the computer seizes your spheres you will lose them and some points too. You may choose between three skill levels available and sharpen your skills.