Assumptions 1_

of 12 /12
Find the best solution to connect the nine points together with no more than four straight lines without lifting your writing instrument.

Transcript of Assumptions 1_

Page 1: Assumptions  1_

Find the best solution to connect the nine points together with no more than four straight lines

without lifting your writing instrument.

Page 2: Assumptions  1_

Whatassumptions

are you making?

Henry Dudeney was born 144 years ago – 10th April 1857

Page 3: Assumptions  1_

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.

Page 4: Assumptions  1_

“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

Page 5: Assumptions  1_

Don’t assume that the lines must pass through the center of the dots.

Page 6: Assumptions  1_

Don’t assume that the line must be thin.

Page 7: Assumptions  1_

Just to prove I can do it with two lines.

Page 8: Assumptions  1_

Don’t assume that the paper must be flat.

Page 9: Assumptions  1_

If you rip the paper into nine segments, you can stack them

and poke your point through all at once.

Page 10: Assumptions  1_

Don’t assume that you cannot crease the paper.

Page 11: Assumptions  1_

Don’t assume that the lines cannot extend beyond

the edge of the paper.

Page 12: Assumptions  1_

Don’t assume that you cannot rip the paper.