Boring
Checkers is a great game. You have ruined it for me forever.
The only sound was that of a constant click when a piece moved, and yet because of this single sound, you felt that you needed to put a sound button.
Also, the graphics, style and controls were pretty bad. They looked ameturish. And the opening logo looked like a picture somebody found on Google. Not saying you did, but it doesn't fit with the style of the game.
Oh, and my rat could kick the AI's ass! I mean, the AI sucked. It's no better than the AI on Wolfenstine.
Keep trying, and make something that doesn't suck.