The Computer will pick a 3-digit number. Each time you guess any 3 numbers. The computer will report whether or not you are correct through Ds, Ps, and Zs. A P means that a number is in the right place, a D means that it is the right number, but in the wrong place, and a Z means that a number is not in it at all. Click on the numbers on the side to cross them out, underline them, or circle them. Keep guessing until you get the right number.
All coding by me.