Below are 2 illustrations that consist of 3 pieces, not in the same place (see the black lines, the top 2 pieces have swapped places). In the top figure, there are 15 dwarfs, in the lower 14. Where did that one dwarf go ?
![](http://telin.rug.ac.be/~jv/Dwarfs.gif)
![Smilie](http://murc.ws/core/images/smilies/smile.gif)
Jörg
(We here have some idea, but I'd like to hear your thoughts !)
(edited for incorrect link)
![](http://telin.rug.ac.be/~jv/Dwarfs.gif)
![Smilie](http://murc.ws/core/images/smilies/smile.gif)
Jörg
(We here have some idea, but I'd like to hear your thoughts !)
(edited for incorrect link)
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