Something is Puzzling me...?

Question

Basically, this is the problem, there's a 5x5 grid...you enter in the bottom left sqaure and exit in the bottom second-from-left sqare..and you have to draw one continuous line that paases through every square once..and only once..any help would be much appreciated..thanks in advance...here's a link to a diagram for explanation...http://i12.tinypic.com/4lt7hoj.jpg

Answer 1

This is going to be hard to explain. Basically, you're going to have to go outside the diagram once and come back into it.

Let's get some coordinates established. Letter the rows A - E, running top to bottom. Number the columns 1-5 running left to right. You're entering at E1 and exiting at E2.

Enter E1 and go up to A1. Turn right to A2 and go down to D2. Turn left to D3 and go up to A3. Turn right to A4 and go down to D4. Turn left to D5 and go up to D1. Exit the top of D1, go around the grid to re-enter at E5, Go across to E2 and go down.

If you are not allowed to leave the grid, then it is impossible.

Edit: I hadn't thought of the diagonal solution. That basically lets you into a square by crossing two lines at once. If that's not against the rules, then that will work, too.

Answer 2

Straight to top.
Turn right to end
go down one then go left to 2nd row
go down then right to end
Go down to bottom row
left one square
up one square
left one square
down one square
up diagonally and left one square
down one square and exit