Four (not three) intersecting circles turning in steps of 120�.

• Inventor: Xu Hai Kun
• Mechanism: Intersecting circles
• Patents: Unknown
• Producer: Customly 3D printed
• Year: 2022
• Original Price: $29.99 USD
• Current Price: No Data

As the name suggests this is a direct successor of the Arecibo. It seems to consist of three circles but comes with a central fourth circle.
The puzzle can be gripped from front and back, the black frame is only around the edges of the puzzle.
The pattern of cuts is identical to the Sirius but with a third circle.
It is customly 3D printed. It is sold through hknowstore.
Size: 14 x 144 x 150 mm

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