Havel Hakimi is a great puzzle game that's both entertaining and educational. In this game, you are able to learn about fascinating things like graphs and integers. It is important to understand the rules and then attempt to solve the problem - you have to reduce the numbers by connecting lines with other numbers. Each when you join lines, every number in the circle that is connected will decrease. The goal is to get all circles with zero numbers This may sound simple, but you have to think about it logically! Are you able to complete each level? As you advance you will need to tackle larger circles that have greater numbers!