XTree

 

by Peter Grabarchuk

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The XTree shown in the illustration consists of two equilateral triangles, each of which is formed of three matchsticks.

Puzzle 1. Move two matchsticks in order to obtain three equilateral triangles.
Puzzle 2. Move three matchsticks in order to get eight triangles.
Puzzle 3. Move three matchsticks in order to create three triangles identical in their shape and area.

For all puzzles above the overlapping of the matchsticks is not allowed.

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Christmas Tree
Christmas Tree
It can be a little Christmas puzzle gift to entertain you for a few minutes at least - only three triangles hidden in a Christmas Tree and the extra one that has to be found.
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*The puzzle was inspired by Christmas Tree puzzle by Serhiy Grabarchuk, Jr.

Last Updated: January 3, 2008
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