assumptions 1_
TRANSCRIPT
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Find the best solution to connect the nine points together with no more than four straight lines
without lifting your writing instrument.
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Whatassumptions
are you making?
Henry Dudeney was born 144 years ago – 10th April 1857
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If you do not assume that you cannot extend your lines beyond the imaginary square formed by the
box the puzzle becomes easier to solve.
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“Everything “that can be invented “has been invented.”
Charles H. DuellCommissioner of U.S. Office of Patents,
urging President William McKinley to abolish his office, 1899
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Don’t assume that the lines must pass through the center of the dots.
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Don’t assume that the line must be thin.
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Just to prove I can do it with two lines.
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Don’t assume that the paper must be flat.
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If you rip the paper into nine segments, you can stack them
and poke your point through all at once.
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Don’t assume that you cannot crease the paper.
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Don’t assume that the lines cannot extend beyond
the edge of the paper.
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Don’t assume that you cannot rip the paper.