can you do this puzzle. 1. you must do it without lifting your pencil or pen 2. you cannot go over the any line twice Here it is

Actually, it should be pretty easy, I did a lot of these things in my Primary School ages, and resolved them everytime after a few tries

http://forum.ebaumsworld.com/showthread.php?t=137248 Note: Some of them are stupider than me like poster 4 and 5 in the link.

Provably impossible (I know it has already been taken but you can have some maths to back it): http://www.tummyfluff.co.uk/puzzles/lines2.htm

Not possible. Here's some info on these types of puzzles taken right from Prof. Layton. http://bp3.blogger.com/_qozgm0W_-kE/R7pCev.../s320/039SB.gif Hope that clears it up.

It *is* impossible. Topology tells us that a figure can only be traced in one stroke without repeating a line if either: a) Every intersection of lines (point) involves an even number of lines spanning from it or b) ALL BUT TWO involve an even number. For further details, go to Wikipedia, or read the Maths "D1" A-level Textbook. This figure has a (4) in the middle, and 4 (5)s, thus is not traceable in one stroke. EDIT: Oh yeah, it was in Layton too. Funny; I was doing D1 at the same time as the first Layton came out in the UK, so I didn't need the in-game hint.