Baguenaudier
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Baguenaudier, also known as the Chinese rings, Cardan's suspension, Cardano's rings, Devil's needle or five pillars puzzle, is a disentanglement puzzle featuring a loop which must be disentangled from
A baguenaudier
A metal version of the puzzle
Gray code
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The reflected binary code, also known as reflected binary or Gray code after Frank Gray, is an ordering of the binary numeral system such that two successive values differ in only one bit.
Baguenaudier
…French mathematician Édouard Lucas, the inventor of the Tower of Hanoi puzzle, was known to have come up with an elegant solution which used binary and Gray codes, in the same way that his puzzle can be solved. The minimum number of moves to solve an n-ringed problem has been found to be For other formulae, see…
A Gray code absolute rotary encoder with 13 tracks. Housing, interrupter disk, and light source are in the top; sensing element and support components are in the bottom.