Guess 4

This game consists of a single player and a two player mode. In single player, a random 4 digit number is generated with digits from 1 to 9. The goal is to guess the number. In two player, you each take turns inputting a 4 digit number from 1 to 9. The goal is to guess the other player's number. In both modes, each guess returns a 2 digit number after it.

Ex: 2349 23
The 23 is the 2 digit number.
The first of the 2 digits tells you the number of digits you guessed that matches and is in the right position with the one you are trying to guess. The second digit means the total number of digits that match, it does not have to be in the right position.

Ex: If the number you are trying to guess is 3456 and you guessed 3475 it will return 23 because the 3, 4, and 5 are correct, but the 5 is not in the correct spot