Turing Machine

Number of players: 1–4 Players
Playing time: 20 Min
Complexity: 2.53 / 5
Age: 14+

About the game
In Turing Machine, players race to crack a secret three-digit code by interrogating an ingenious analog computer made from perforated cards. There is no app, no batteries, and no electronic device—just logic, deduction, punch cards, and a physical verification system that reveals whether your test code satisfies hidden conditions.

At the beginning of each puzzle, players set up a selection of Criteria cards and their corresponding hidden Verification cards. The criteria might test whether a digit is greater than another, whether a certain number appears in the code, whether digits are even or odd, or whether the code follows a particular numerical pattern.

On each turn, choose a three-digit code using digits 1 through 5, then use the appropriate punch cards to query one or more verifiers. The perforations reveal either a check mark or an X, confirming whether your proposed code meets each tested condition. Record the results, eliminate impossible combinations, and use the evidence to narrow down the one code that satisfies every criterion.

In competitive play, the first player to correctly identify the code wins. The game also includes cooperative and solo modes, letting players solve the code together or challenge the puzzle system alone. With more than seven million possible puzzles, Turing Machine offers enormous variety across difficulty levels, from introductory logic challenges to demanding deduction problems.