Find how many 18-digit numbers (without leading zeros) there are such that no digit occurs more than three times in base 10.
The Ultra Hardware push button lock from Amazon is easy to crack.
Because of some frustration and claims of unsolvable levels we took screen shots of solutions for every level. We understand that sometimes it nice just to know what to expect from some of these tricky levels.
Recover your combination to your new or old Master Lock combination lock in a few easy steps.