Lesson plan

God's algorithm

God's algorithm of the Rubik cube is a notion originating in discussions of ways to solve the Rubik's Cube puzzle, but which can also be applied to other combinatorial puzzles and mathematical games. It refers to any algorithm which produces a solution having the fewest possible moves (i.e., the solver should not require any more than this number). The allusion to the deity is based on the notion that an omniscient being would know an optimal step from any given configuration.

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Article summary

God's algorithm of the Rubik cube is a notion originating in discussions of ways to solve the Rubik's Cube puzzle, but which can also be applied to other combinatorial puzzles and mathematical games. It refers to any algorithm which produces a solution having the fewest possible moves (i.e., the solver should not require any more than this number). The allusion to the deity is based on the notion that an omniscient being would know an optimal step from any given configuration.

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  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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