This past weekend we went to the Omsi's
Brainteaser exhibit. It was pretty fun,
and it made me think of the hours of
slave labor that Ben put us through to
make this year's puzzle for his G4G8
conference entry.
He designed a 2x2 cube (8 cubes!) that have 2 solutions (where each side shows a single color): one easy, one difficult.
He designed a 2x2 cube (8 cubes!) that have 2 solutions (where each side shows a single color): one easy, one difficult.
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