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4×4 Lock Problem
The object of this logic puzzle is to align all the "keys" vertically. This vertical configuration can be achieved from any initial starting position. Click on a key to change the orientation of every key in the same row and column.
Contributed by:
Bryce Luna
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This Demonstration is based on a Bay Area Mathematical Olympiad problem.
PERMANENT CITATION
Bryce Luna
"
4×4 Lock Problem
"
http://demonstrations.wolfram.com/44LockProblem/
Wolfram Demonstrations Project
Published: August 15, 2012
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