Rotate each half to scramble or return colours. The most difficult of the three versions.

• Inventor: Douglas A. Engel
• Mechanism: Intersecting circles
• Patents: US4415158
• Producer: Go Images
• Year: 1986
• Original Price: $0.00 USD
• Current Price: $26.99 USD

The alternative version (image 4) is also known as Jentek 1.
The first version was made by Kelltek Plastics. They later changed their name into Go Images.
The puzzle:
Size: 9 x 117 x 160 mm
Weight: 68 grams
The package:
Size: 13 x 122 x 165 mm
Weight: 30 grams

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
	Dec 30 2021	$26.99	eBay Auction	Good	Missing	Unused but missing packaging	PuzzleAF
= 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.

This puzzle can be found in collections of these members:

---

Found a mistake or something missing? Edit it yourself or contact the moderator.