Tuesday, December 7, 2021

Broken Burr by George Bell



George sent me a copy of this very cool puzzle.  Disassembling this one is not so hard but getting it back together is another thing.  I didn’t realize that there were multiple assemblies until I read through the description by George below.  Be sure to drop by his Etsy Shop and grab one for yourself!



“The puzzles in the first photo are "broken" (have no symmetry). Give this puzzle to someone and ask them to "fix it", i.e. take it apart and reassemble it correctly. The correct assembly has a pleasing symmetry (not shown in the photos as it would spoil the puzzle).

This is not a difficult puzzle, I like to print it in three contrasting colors for a nice visual effect. I hope that it will appeal to children and non-puzzle experts to explore this geometry, it is closely related to the classic Diagonal Burr.

The second and (slightly) more difficult part of the puzzle is to find all possible assemblies. This puzzle has the largest number of coordinate motion assemblies that I know of (four). It feels like a Stewart Coffin puzzle but it is my own design.

“The three pieces do not come apart, the different colors have been glued together. There is no need to take the pieces apart (unlike Rosebud). If you have a specific color request from the photos you can add this in a note, but I can't promise I will have it.”


George Bell













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