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Tetris piece arrangement

Cross-posted to 2 groups.

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My mom made me a tetromino[1]-piece bday cake.  Very cool.  But she
couldn't find a way to cut a 4x6 cake into six different pieces.  I can't
either.  Can anyone here?  Here's the pieces she used:

1111 (blue)

222
2 (green)

3
333 (grey)

44
44 (yellow)

5
55
5 (pink)

 66
66 (brown)

proposed mirror-image replacement:
XX
 XX

For the green one, she had only the 3 corner pieces, and there was a
single square (now eaten).  I suppose the arrangement can either be all 7
tetrominoes in a 4x7 cake, or any 6 in a 4x6 cake.  She didn't have a
mirror-image piece for the brown piece (#6), so call it #X.  I have a
screen saver that does this sort of thing (XScreensaver module
"Polyominoes"), but I can't enter data into it.  Thanks.

[1] the generic name for 4 similar shapes stuck together

-- 
-eben    QebWenE01R@vTerYizUonI.nOetP    ebmanda.redirectme.net:81
LIBRA:  A big promotion is just around the corner for someone
much more talented than you.  Laughter is the very best medicine,
remember that when your appendix bursts next week.  -- Weird Al

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Tetris piece arrangement ebenZEROONE@verizon.net (Hactar) - 2015-09-12 13:40 -0400
  Re: Tetris piece arrangement usenet@only.tnx (Questor) - 2018-04-15 07:18 +0000

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