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The puzzle of symmetry dice. (English)
Tarquin, Stradbroke (ISBN 1-899618-38-4). 32 p. (2000).
Here are 34 special paper dice to cut out and glue together and also a storage box to keep them in. The dice are grouped into four different sets, each in its own colour. All of them are proper dice but, they differ in subtle ways and the puzzle is to work out which are the same and which are different. To do so requires some enjoyable logical thinking and also draws attention to the possible symmetries of three-dimensional objects. Also there is an extensive and interesting minibook dealing with the curious effects in chemistry and biology of similar differences in the symmetries of molecules and living organisms. (orig.)
Classification: U63
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