I was trying to make game both simple and strategic.
In the game all player has to do is rotate one of 3 circles and find matches of numbers. Also game helps: two numbers change sizes when match.
1) Two numbers must differ by 1 and have the same direction of arrows
2) Grab the circle with the larger number and put the larger number on the number that is 1 less (i.e 3 -> 2)
3) The first number will increase by 1, and the second number will decrease by 1
4) Arrows will switch direction and colors after matching. After 10's color you will get 100 extra points
6) No jumping through circles. That means numbers from neighbouring circles can be matched.
7) Inner circle is connected with outer circle