by: B&L • 11
The application generates a 4-digit secret number. The digits must be all different. You will try to guess the secret number. If the matching digits are on their right positions, they are "A", if on different positions, they are "B".
UPGRADE: Higher degree of difficulty, records available for competition among buddies.
Tags: secret numbers , screenshot hidden , secret number , the secret number of , hidden numbers , hidden numbers *# , what is secret numbers