U.S. Patent No. 4,378,116 - issued to Ernö Rubik in 1983 for a "spatial logical toy"
U.S. Patent No. 4,378,116 - issued to Ernö Rubik in 1983 for a "spatial logical toy"
Image description: utility patent drawings for the Rubik's cube
(Originally published on mastodon.social: 2024-02-21)
Awesome! This is probably the single most popular puzzle ever invented.
Tetris?
That’s definitely in contention. Now I’m curious which is more popular. Do they have Tetris clubs, Tetris world records, and that sort of stuff?