How to play Cracking the Safe?

The goal of the Cracking the Safe puzzle is to crack the code by eliminating the numbers that aren’t possible in the equations.

  1. Open a safe by tapping it.
  2. Now you can eliminate numbers by clicking on them.
  3. Return to the overview by tapping next to the safe.
  4. Every equation gives you more tips for eliminating numbers.
  5. If you are persistent, you will be able to crack all the safes

Go here to play the puzzle… and good luck!