A moving hole puzzle with a spherical shape.

• Inventor: Hannu Hjerppe
• Mechanism: Moving Hole on 3D-surface
• Patents: US2010264583
• Producer: Diff Design
• Year: 2007
• Original Price: $15.00 USD
• Current Price: No Data

Bolaris is a spherical sliding piece puzzle from Finland. It is similar to the Equator, in that it has square tiles sliding on three tracks on a sphere, and the Massage Ball in that it has a gap into which the pieces can slide. The puzzle has three intersecting rings of 8 tiles, and there are 6 intersection points, leading to 18 tile locations filled with 17 square tiles.

The puzzle exists in four colours and designs.
The variant shown here has three differently coloured square. 13 of the 17 squares have a visible orientation.
This puzzle attended the design competition during IPP29 in 2009.

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