
!Pentamino          E.T.Emms
**********

       This is a classic puzzle invented by Dr Solomon
Golomb. (see his book Polyominoes-Allen & Unwin 1966). Given
5 unit-squares, they may be put together (edge to edge) to
form 12 different distinguishable shapes - the so-called
polyominoes. The problem is to fit them together (like a
jigsaw) to form a 10x6 rectangle. The pieces may be rotated
or turned over. On running the program the available pieces
are shown at the top of the display. Immediately below each
piece are two boxes which (by clicking) enable all the
possible orientations of a piece to be obtained. The box
under these enables the piece to be placed on the board.
First though you must click on a board square to indicate
where the piece is to be placed. The piece is placed so that
its lowest and most westerly part goes in the board at this
point. A piece may be removed from the board by clicking on
any part of it. You have the opportunity to choose other
boards, but be warned! These are harder.

!PentArc
********

      This has the computer solving the pentamino problems.
