The computer will think of a three digit number with unique digits. After you attempt to guess the number, the computer will tell you how many of your digits match and how many are in the right position. Keeping on submitting three digit numbers until you have guessed the computer's number.

Enter your name and the click on the PLAY button to begin playing Guessnum !

Click here to see those who may have played a perfect game.
Or here to see those who have clearly hacked the game.

You can search for your favorite Guessnum player by entering the player's name below and then clicking on the SEARCH button.

Guessnum Player:

Guessnum is part of the Vicnum project which was developed for educational purposes to demonstrate common web vulnerabilities. For comments please visit the OWASP project page.

Mordecai Kraushar