hacker.org

There are a few sites going in that direction, but no 100% matches as far as I know. All of the sites below take you code and run it on their servers, with a varying amount of languages to choose from. codingame.com There are puzzles (with a correct answer to find, some with visual animations), a bi...

2. is correct. The decrypted message contains more x than y, more y than z and more z than w.

Yes, that's what is meant with the tuples.

map
Blue Skies, Green Grass -> Duke Box -> Childish -> Communication of the Past

I'm stuck at the Dukebox :(

Yes, the leaderboard broke 3 or 4 years ago.
For a less outdated one see here: http://www.hacker.org/forum/viewtopic.p ... ght=#22413

Yes, logic and hacking

I ran wget some time ago to prepare for the worst - though I can only save the client side website and I haven't unlocked all challenges.

Is there a current relevance for the topic or is it just a general wish?
I just went back to Modulo

1. Not necessarily distinct, but in this case they are.
2.1 yes
2.2 keep the 3 bytes as an integer or you break the shifting logic. Your first egg is 3681665 in decimal

That one kept me busy for a while too. I came back after some graph theory lectures and was able to transform it into another problem that has a good solver. Half of my solving time is generating a 100MB input file to feed the solver. Despite reaching level 1000 I still don't know how to solve it pr...

This was generated with my solver for the 2nd puzzle. Without the image export for intermediate steps it takes about 10s to run. I start with a random piece, then always take the longest edge and try to place pieces along the edge. I repeat the filling process in both directions and make sure that I...

Maybe because of this one: http://www.hacker.org/forum/viewtopic.php?t=2595

I haven't advanced to that level to have a look at it. But from my experience with other puzzles (like oneofus), they might be broken on higher levels. But they aren't meant to be solved by hand. You can get the level from the page source and write a program to find the answer and submit it to the s...

As you already solved it, you have access to the solver thread.

And I simply fixed the .class file itself.

"Compile"?
You already have a .class file. Find out why you can't run it and patch it. No need for a decompiler.