We know that Rubik's Cube is a good demonstration of group theory. Correspondingly, for the horseshoe puzzle as in the picture below, is there a math language for it? Does it demonstrate any math subject?

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    $\begingroup$ Likely topology but I wouldn't have the first clue how to describe it in those terms! $\endgroup$ – John Jan 8 '15 at 14:46
  • $\begingroup$ had you heard about isotopy? $\endgroup$ – janmarqz Jan 8 '15 at 15:22

Such puzzles typically are related mainly with knot theory.


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