September 27, 2017 08:50 am PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/NA-XCSHwP50/the-instant-insanity-puzzle.html
The Instant Insanity puzzle
Puzzle designer Fleb takes a look at the Instant Insanity puzzle, which was patented in 1899. It reminds me of a cross between Rubik's Cube and sudoku.
I like Fleb's videos because he teaches you general principles of puzzle solving, not just how to solve a particular puzzle.
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/NA-XCSHwP50/the-instant-insanity-puzzle.html
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