The Grecian Trick Lock is a historically inspired metal brainteaser based on Theodorus’ ancient design, challenging players to crack its clever mechanism. It includes an intricate lock and key, designed to test your problem-solving skills by requiring you to open the lock using the provided tools. Suitable for ages 8+.
We love how Project Genius combines historical innovation with modern brainteasers, offering a screen-free way to engage the mind and inspire curiosity across all ages.