A little play. A sharper day.

Reasoning

Logic Locks

Every lock has one code and a few failed attempts pinned beside it. Each attempt tells you how close it came. That is enough β€” no guessing required.

  • Reasoning
  • Deduction
  • Logic
Logic Locks
An open combination lock beside colored deduction clues

Ready to pick some locks?

Failed attempts, each marked for how close it was. Three tries per run, and every lock has exactly one answer.

Filled dot: right digit, right slot. Hollow dot: right digit, wrong slot.

How to Play

  • Read the attempts

    Each row is a code that failed, and how it scored.

  • Count the marks

    Filled means right digit and right slot. Hollow means right digit, wrong slot.

  • Open the lock

    Work out the code, tap it in, move to the next lock.

What It Challenges

  • Deductive reasoning

    Reach one answer from a handful of facts.

  • Working memory

    Hold several constraints in mind while you test a candidate.

  • Hypothesis testing

    Rule possibilities out instead of guessing at them.

Neuriosity quizzes are designed for fun and personal insight, not as medical or diagnostic assessments.