Place 11 copies of the hexomino below in a 9x9 square such that no pair of hexominos forms a 3x4 rectangle.
+--+--+--+
| | | |
+--+--+--+
| | |
+--+--+
| |
+--+
In the solution I found two 4x4 corners of the square are each contain a pair of hexminos.
AAA
AA B
A BB
BBB
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Posted by Jer
on 2016-09-30 17:19:49 |