Okay, folks, here's a test of how good you are in freeing your mind from proven gutters... I read somewhere that about 2% of all people get the answer to this without having been told - and it is incredibly easy, as soon as you get the trick.

I challenge you to take a sheet of paper and draw a grid of dots on it, 3 high by 3 wide... kind of like this:

O....O....O
..............
O....O....O
..............
O....O....O

Now, I want you to connect ALL 9 dots with only four lines, without raising the pen... that's all the rules there are.

Can anybody make it, who never has been told? (To be honest, *I* couldn't...)

Okay, I will solve this one, too... it is quite easy, actually.

I bet all those who tried, never let their lines stray out of the limits defined by those dots!? You have to to get anywhere - it doesn't say you may not anywhere. So let us widen that square by one dot wide and one dot high...

O......O......O......o
..........................
O....O....O
..............
O....O....O
.
o

So now let's start drawing lines - you start in the first line, and connect all four dots now, like this (I numbered the dots to go without proper graphics - SHEEESH I love fixed-width fonts!):

1---2---3---10
..............
4....5....6
..............
7....8....9
.
11

Next, you connect #10 with #10 - line two. You will notice that the line goes right through #6 and #8:

1---2---3---10
.................-.
4....5....6
.......-......
7....8....9
..-
11

Now connect #11 with #1, line 3:

1---2---3---10
-................-.
4....5....6
-......-......
7....8....9
-.-
11

If you now connect #1 with #9, that line will automatically hit #5, and your fourth line does the job...

1---2---3---10
-..-.............-.
4....5....6
-......-...-..
7....8....9
-.-
11

Easy - once you break free of the limits that your brain imposes on your thoughts...

"Next, you connect #10 with #10 " - GOSH, Sanne, wake up properly before making any substantial statements...

I bet all of you saw that that should read "Next, you connect #10 with #11"!

I know this and how to think "outside of the box" . I've only done it with three lines not four?

I don't do lines anymore.......

I gave it up years ago!!!!!