Some people like crossword puzzles, some are serious sudoku ninjas ... [Andrea] chose to build an autonomous Rubik’s cube solver, and was kind enough to document exactly how how to do it ...
Some of the fastest Rubik’s cube solvers in the world have gotten down to a five second solve — which is quite an incredible feat for a human — but how about one second? Well, [Jay Flatland ...
As an example of Excel's strength, a Reddit user even made a Sudoku solver using just Excel, and how it works is magnificent.