|TomZ's Curvy Copter|
So what is a Curvy copter? Why is it special? You are all familiar with a standard cube (I think the whole world must know what one is by now!) - a standard cube is a 3x3x3 face turning cubic twisty puzzle - it is easy to visualise and relatively easy to solve. Then we have a skewb (or skewed cube) this is a deep cut (2x2) corner turning cubic twisty puzzle - it is "deep cut" because one turn makes changes on every face of the cube. So the only thing missing from this progression is an edge turning cubic twisty puzzle - the 2 variants that do this are the Helicopter cube and TomZ's Curvy copter. He has also created a deep cut version called the Curvy copter II. The Curvy copter that I own was first mass produced by Uwe Meffert in July 2011 (having been made by a knock-off company before that) and is still available from him. He had been out of stock recently and I bought mine from the HKnowstore run by Calvin Fan who seems to work closely with Uwe. This puzzle is amazingly good value for money at $18 including P&P!!