Encyclopedia > Plate-and-ring puzzle

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Plate-and-ring puzzle

A plate-and-ring puzzle usually consists of two pieces:
 - one plate or similar displaying many holes and/or indentations 
 - a closed or nearly closed ring or a similar item. 

The plate as well as the ring are usually made from metal. The ring has to be disentangled from the plate.

Plate-and-ring puzzles have a long history and are among the first puzzles ever made.



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