• Compare with original dissection of {12} to {6}.

• Partially cyclicly flip-hinged dissection of {12} to {6} (6)

Reference : 

Updates to Chapter 22 of  Hinged dissections : Swinging & twisting, by Frederickson, Greg N.

 http://www.cs.purdue.edu/homes/gnf/book2/Booknews2/ch22.html#THH