Not bad for free!

Not bad, for free, but it wrongly calculates one repetition as a draw, when it should require three repetitions, with no other moves between the reps.

It does occasionally vary its opening move, where many other free games do not, which is good.

I tried to justify spending the extra buck for the paid version, but neither has ads, neither has a selection of boards, backgrounds or pieces, so beyond just saying thanks to the developer for writing a version of chess that the average Joe can beat on the Medium level, but the Advanced and expert levels will blow most people out of the water unless they get used to hitting the Undo button.

I like the way you cannot select Undo if you are in a Mate In One situation. Good job.

Homer1954 about Chess Knight Go