Eight pieces in a puzzle resembling a Square-1. The orientations of the magnetic have to solved although being invisible.

• Inventor: Ilya Osipov
• Mechanism: Square-1 (2 layers)
• Patents: RU2667861, WO2019216794A1
• Producer: Excite Toys
• Year: 2018
• Original Price: $19.99 USD
• Current Price: No Data

The puzzle turns like the "Two layer square prism", please refer to the separate entry. The big difference is that it is not solved by colour or shape but by magnets. Each piece contains three wand-shaped magnets with an invisible polarity. The challenge is to recognize these orientations.
The puzzle (in a white version) won an honorable mention in the design competition during the International Puzzle Party 2018. The wooden body (images 3-5) followed the same year.
Images 6-7 show the version called "Tokamak" which was redesigned by Oskar van Deventer. The differences are the coloured pieces, this differently shaped body and the fact that the solved state is a midturn state.
Image 8 shows the mass produced version called "TRUEChallenge".

Thank you to the following people for their assistance in helping collect the information on this page: Ilya Osipov.

This puzzle can be found in collections of these members:

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