Look at the first photo, it is a box which inside is red and outside is blue. The box is assembled with 12 triangles. Can you turn it inside out without holding the triangles like the next photo which inside is blue and outside is red.
The third photo is another virsion, this is a little bit bended box.
Do you know these puzzles?
Among some friends of mine these puzzles are now current topics.
Let's enjoy them.
2 comments:
16triangles!
Not 12(^^)
Yeah, enjoy them!
yes, 16triangles. Sorry, it is my mistake.
BUT--- welcome to this blog, Asako-san, probaly you are that Asako-san aren't you?
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