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Four P Pentominoes (Posted on 2016-03-04) Difficulty: 3 of 5
Four copies of the P pentomino pictured below can easily be placed in a 5x5 square without overlapping.
+--+--+--+
|  |  |  |
+--+--+--+
|  |  |
+--+--+
Prove it is impossible to put 5 copies in a 5x5 square without overlapping.

Which of the other 11 pentominoes can be included with four P pentominoes such that all five can be placed in a 5x5 square?

See The Solution Submitted by Brian Smith    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
Good workarmando2016-03-05 17:02:41
re: Sq probeSteve Herman2016-03-04 19:17:30
Sq probearmando2016-03-04 14:56:02
SolutionSolutionsJer2016-03-04 11:56:12
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