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Heptomino Box Packing
45×
(21×15)
Discovered by
白川俊博
(Toshihiro Shirakawa) (2015).
672 solutions. (shown 5 solutions)
7-36-15x21-1
7-36-15x21-2
7-36-15x21-3
7-36-15x21-4
7-36-15x21-5
Apr 19, 2015 by k16@chiba.email.ne.jp