Number of Players:1-4

TEST YOUR HYPOTHESIS: Create a 3 digit code by stacking punch cards, then ask the analog artificial intelligence computers - each with a different logic puzzle - to check your answer.

DEDUCE THE SECRET CODE: Each logic question will bring you closer to the secret code, either through the process of elimination or relations between numbers.

PLAY AS A TEAM OR SOLO: Including the original competitive mode, you can combine your brain power as a team or try to beat the game itself while playing solo.

NOVEL COMPONENTS: Overlay punchcards to test your secret code against the artificial intelligence computers, reminiscent of computers from the 1970s.

7 MILLION COMBINATIONS: On the online problem generator website, find over 7,000,000 different setup combinations, making the gameplay practically endless!