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Egg of Columbus (tangram puzzle)

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Construction of the Egg of Columbus "tangram" puzzle with dimensions – some versions split the white triangle along the dotted line

The Egg of Columbus (Ei des Columbus in German) is a puzzle consisting of a flat egg-like shape divided into 9 or 10 pieces by straight cuts. The goal of the puzzle is to rearrange the pieces so as to form other specific shapes, as in a tangram.

The earliest known examples were produced by Richter, a German toy manufacturer. Production ceased in 1963, but restarted near the start of the 21st century.[1]

Because the two pieces coloured turquoise in these diagrams lack bilateral symmetry, some shapes in which both pieces have the same chirality, as in two of the examples below, require one of them to be flipped over.

Some models constructed from the Egg of Columbus 'tangram' puzzle. The rightmost two models on the top row require flipping over one of the cyan pieces. The bottom row requires the light grey triangle to be split into two darker grey triangles.

See also

References

  1. ^ Put-Together - Ei Des Columbus aka Egg of Columbus, accessed 2008-10-11
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