85.
(Continued)
d.
These four squares are
at opposite ends of
rows and are common
only to variables AD.
e.
These two squares are
adjacent and common
only to variables ABC.
f.
These two squares are
at opposite ends of
rows and common only to
variables BCD.
g.
These four squares are
at opposite ends of
rows and common only to
variables CD.
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IT0345
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