Help me with this riddle?

Y

Youdon'tneedtoknowmyname

New member
There are 9 dots arranged like this:

. . .
. . .
. . .

How can you connect all the dots using only 4 lines, you cannot go over the same line twice and without taking your pencil off the paper... I know this one and I've done it before... but i'm still confused... help?
 
Best explained if you replace the dots with numbers
123
456
789

1st, go diagonally from top left to bottom right 159
Then, bottom right vertically and past the first line 963, and above that
Diagonally down to left through 24 and past until even with the last line
To the right through 789
 
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