Next-Age-9925 t1_jbtc4m1 wrote
Reply to comment by mike_e_mcgee in TIL the best selling book of 1981 was a guide on how to solve the Rubik's cube, selling over 6 million copies. by lightsdevil
I just bought the 'training set' of two junior cubes and one regular for both fidgeting and also working on logic skills.
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