First of a series of three similar puzzles. The three differ only by the colors of the pieces.

• Inventor: Oleg Raschkov
• Mechanism: Intersecting Circles
• Patents: DE29904348U
• Producer: Rashkey
• Year: Unknown
• Original Price: $0.00 USD
• Current Price: $13 USD

This puzzle consists of two intersecting circular disks. The distance between the centres is exactly one radius length. The disks are made up of many pieces with curved sides, which allow them to be rotated any number of quarter turns. Each disk has 4 squares, 4 diamonds, and 12 triangles. As some pieces are shared between the two disks, there are all together 6 squares, 7 diamonds, and 20 triangles.
There are three different vesion of Rashkey which differ only by the colors of the pieces. The three puzzles are ordered by increasing difficulty.
Rashkey 1 has 44100 permutations.

Price Tracking Data

DISCLAIMER: The following table contains user-generated content. This information is collected to serve as a rough guideline and is certainly not complete and may not even be accurate. This information is filtered and carefully moderated, but incorrect information will inevitably find its way into the system. Always use your own judgement when buying or selling an item.

	Sale Date	Price (USD)	Sale Type	Condition	Package Condition	Notes	Contributors	Edit
	Sep 2 2010	$13.00	Other	Good	Good	None	Gordon
	Sep 2 2010	$13.00	Other	Good	Good	Rashkey 1	Gordon
= The sum of all currently check-marked rows.
= The average of all currently check-marked rows.

Thank you to the following people for their assistance in helping collect the information on this page: Oscar Rosen. If you have any information or images that you would like to contribute to this entry, please click the apropriate add () or edit () icon above, or use the following links to modify this item, add a recent sale price or to add a new link.