Hacker Quest

Recently found on the network another time killer. At this time, your attention is invited to an interesting hacker quest, made with humor. In runet mentions of him almost never occur. It consists of 5 "warm-up" levels and 50 more difficult , for the passage of which will have to apply knowledge from a variety of areas.

After solving the first 5 levels, you have the opportunity to register and get a shell account on the server with Debian Lenny as a nice bonus. Disk quota up to 2 GB, more information about the server can be found here .
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Good luck :)