2/15/13

An Important Different

This puzzle is unlike its predecessors in an important way. According to how the puzzle is made, the thin cords can be in a different position relative to the design on the puzzle. This is possible even when puzzle have exactly the same design, and the difference has a serious impact on a written solution. These two illustrations differ only by the position of the cords with respect to the design:
 

When you turn ever the left 2 squares, the result depends on the location of the cords. This difference is far more subtle than the differences that plagued attempts to provide general solutions for Rubik’s Cube and its imitators. For this puzzle, a written solution must take this possible difference into account. The step-by-step solution presented in this book dose that.

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