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Making NxMxL cuboid puzzle proportional by having curved cuts visible at the outside. Named after Ola Jansson, a.k.a. Olz.

First use: https://twistypuzzles.com/forum/viewtopic.php?f=9&t=18354&p=223914

Example: 7x7x5 by Ola Jansson, see photo.

7x7x5

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