A frustrating new brainteaser challenges puzzle lovers to find the open padlock among the sea of locked ones. According to the creators, the record stands at nine seconds.
Brain Teaser for Testing Your IQ: Can you help Pirate to find Right Lock of Key in 11 secs?
Padlock Pocket Puzzle by Hanayama - Art of Play
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The Revenge Lock Metal Puzzle by Wil Strijbos is Made From High Quality Aluminum. Brain Teaser, Puzzler, Sequential Discovery Puzzle Box.