Tuesday 25th April 2023
Difficulty: Very hard
(Unsplash)
The Rubik's Cube is a 3-D puzzle invented by Hungarian sculptor and professor of architecture Ernő Rubik.
1. In what year did Ernő Rubik invent his cube?
2. How many possible permutations (approximately) are there for a standard 3x3x3 Rubik's Cube?
3. What colour is opposite yellow on a completed Rubik's Cube?
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