Soma cube

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The Soma cube is a mathematical puzzle by Piet Hein.

This text is from the 'Tetromino' article, and is being edited

The soma pieces are:

  • T: a row of three blocks with one added below the center
  • L: a row of three blocks with one added below the left side
  • S: bent trimino with block placed on outside of clockwise side
  • Z: bent trimino with block added on outside of anticlockwise side
    Reflection to S. See "J", above.

When added the third dimension, there are three more patterns, all created by placing a unit cube on the bent trimino:

  • Left screw: unit cube placed on top of anticlockwise side. Chiral in 3D.
  • Right screw: unit cube placed on top of clockwise side. Chiral in 3D.
  • Branch: unit cube placed on bend. Not chiral in 3D.


See also:

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