Chris Ramsay on MSNOpinion

Solving the hardest lock puzzle in history

A level 10 lock puzzle pushes patience and problem solving to the limit with brutal difficulty clever mechanics and a ...
Upgrade your cat burglar game. There are four levels of Digipick difficulty — Novice, Advanced, Expert and Master. You can only open higher level locks if you’ve unlocked higher levels of the Security ...
Test your logical reasoning with this challenging 3-digit numeric lock puzzle. Analyze strategic clues, eliminate wrong digits, and crack the correct code within 21 seconds. This brain teaser sharpens ...