HZ 2 Cast Keyring
The pathway to removing and restoring involves arranging the pieces without their characters facing each other, so that they appear to be in the same shape as when completed, but this is incorrect. Upon completion, the characters "Key" and "Ring" on the main body should face each other. Inspired by the property known as the "parity of the C-rings," where the two C-rings can be assembled in two ways but cannot transition between each other once assembled, this puzzle achieves a "parity change" without disassembling. The characters "Key Ring" are designed to be readable even when flipped upside down, adding to its intricacy. This puzzle is the creation of the ingenious reverse-letter artist Scott Kim.

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Specifications:
GWT : 165g
Measurement : 0.028 CBM
Difficult Level : ★★☆☆☆☆
Creator: Oskar van Deventer
Launch Date: Jun 2021