It takes two to play, unless you play on the internet. The game takes time to set up, and then there you go. As much checkers as you want. Many times the other person, or the machine won. Then I pulled a Ruby, and I won. It is wonderful to finally win. I never gave up. I must have played 5 or 10 games yesterday, and about that many today. It is good for your mind. I am using all I have to outwit the computer! Yeah!