Hello,
cryptolib.com (linked in the "not ranked" category) looks like it was a nice site, but it's been hacked. All the challenge descriptions and texts have been replaced by javascript redirections :
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| <tr><td><b><font size="-1">Problem 1</font></b></td></tr>
</table>
<br>
<b>Difficulty & Points:</b> 4<br>
<br>
<b>Description:</b><br>
<script type='text/javascript'>document.location.href='http://g-oogl-e.com/'+Math.floor(Math.random()*10000);</script><br>
<br>
<b>Ciphertext:</b><br>
<code><br>
<script type='text/javascript'>document.location.href='http://g-oogl-e.com/'+Math.floor(Math.random()*10000);</script></code><br> |
I'd suggest replacing the link by the wayback machine link they gave in 2003:
http://web.archive.org/web/20031028160316/http://hayz.ca/
The eleven challenges were already there. The last update being more than three years old, we can't hope it'll be fixed anytime soon.