You connect each dot in the first row with the the dot benneth it. The total number of lines is 3. The last row of dots you draw the 4th line going thought the three dots.
This is a classic puzzle. It spawned the phrase "thinking outside the box". Draw 4 lines to connect 9 dots without lifting the pen or crossing the same dot twice.
Sans the requirement "without lifting the pen," the solution is trivial, as mentioned by the first comment: ----| ----| ----|
starting at the bottom ROW with the middle dot, draw a line straight out to the left or right...
Now that line should extend far enough to come back at a 45 degree angle and hit the dot (on the side you extended the line) in the middle of that column and the in the middle of the top row. Extend that line out past until it stops above the column opposite of the direction you extended your first line.
Bring that line straight down so it hits all the dots on that column and ends at the dot next to the middle dot on the bottom row.
You should be at the bottom of the square in a corner, the last dots should be at an 45 degree angle.
You dont have to lift the pencil and your thinking outside the box.
6 comments:
You connect each dot in the first row with the the dot benneth it. The total number of lines is 3. The last row of dots you draw the 4th line going thought the three dots.
I don't suppose anyone knows how to do it w/o picking up your pencil?
its easy
if dots are represented by d.this is method-
OaaaaaaOaaaaaaOaaa
a a a
a a a
O O O
a a a
a a
a a a
O O O
a a
a a
aa
Can I post without setting up an account?
Regardless, visit http://en.wikipedia.org/wiki/Outside_the_box
This is a classic puzzle. It spawned the phrase "thinking outside the box".
Draw 4 lines to connect 9 dots without lifting the pen or crossing the same dot twice.
Sans the requirement "without lifting the pen," the solution is trivial, as mentioned by the first comment:
----|
----|
----|
2008-08-09
starting at the bottom ROW with the middle dot, draw a line straight out to the left or right...
Now that line should extend far enough to come back at a 45 degree angle and hit the dot (on the side you extended the line) in the middle of that column and the in the middle of the top row. Extend that line out past until it stops above the column opposite of the direction you extended your first line.
Bring that line straight down so it hits all the dots on that column and ends at the dot next to the middle dot on the bottom row.
You should be at the bottom of the square in a corner, the last dots should be at an 45 degree angle.
You dont have to lift the pencil and your thinking outside the box.
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