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Building houses 2
The idea is to build up the solid shape indicated by the views to the left - but only using the number of cubes given. There are 10 problems, called figuur1 to figuur10. Be warned: they are not easy.
See some solutions which have been posted on YouTube. Can you beat these for speed? For example House 10 has been solved in 1min 25secs.
When completed, type your name in the box and print out.

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This applet was developed by the Freudenthal Institute www.fi.uu.nl and available on the WisWeb website www.wisweb.nl. It is used with their permission.