Legal hacking

I just hear of a page where you get to do some legal hacking.
You can try your skillz at this adress. First is simple. But there’s 16 levels.
scifi.pages.at/hackits/

https://www.hackthissite.org is absolutely the best of these… or so I think.

r2m0t. He, I’m stuck on ten. Surly the only prime between n and 2n is “3”.

I reached level 4 on the website you put up. I know I can solve it but I just cannot be bothered now.

I’m stuck at level 10 also. I don’t have the head to comprehend biographies written in German about a Russian mathematician(!)

n=5
5 < 7 < 10

n=7
7 < 11 < 14

n=11
11 < 19 < 22

I don’t know… :neutral:

I got to level 8 before I got stuck. After that I cheated :devil:

I can’t program at all and I scanned for level 1 password in the source code, so I just gave up and told myself that I was sooo not going to do this; i suck too much at it!

www.hackerslab.org
telnet… also not one of my skills. I have NO hacker skills…

I personally am a brute forcer - though i have dabbled in exploiting. I once did hackthissite before i believe i made level6 before i gave up.