Write a snippet, a function, a programm, ... that is obfuscated in a way that it looks clear at the first sight that it does something else. For example: write a bit of code that adds two number, but ...
You've probably heard of the classic Eight Queens Puzzle. For those of you who haven't it goes something like this: Position 8 queens on an 8×8 chessboard so that no two queens threaten each ...
Your task is to write an interpreter for the malbolge programming language. To keep with the spirit of the language, this is not necessarily code golf. The winner will be the one who provides the most ...
The students in my high school computer science class were asked to write the game of nim for a simple project. Most of them found it very easy and finished quickly. However, one student came up with ...
A JAPH is a grand tradition of making a program that prints "Just another Perl hacker,". We already have a question about JAPH on this site but they seem more concerned with hiding the text, but JAPH ...
Back to basics! Create a "Hello World" program which prints, well, "Hello World". The winner this time though, is the one who gets the most interesting source code done. For instance, use obscure ...
Implement itoa() in your favourite language in an underhanded way. The code should not be overly obfuscated, but its function should not be obvious at all. You only need to handle 32 bit integers, ...
Create the shortest possible obfuscated program that displays the text "Hello World". In order to be considered an obfuscated program, it must meet at least two of the following requirements: ...
Create the shortest possible obfuscated FizzBuzz implementation. To be considered obfuscated, it should satisfy at least one of the following: Does not contain any of the words "Fizz", "Buzz", or ...
Classic code golf challenge. Write the most obscure Perl program to print "Just another Perl hacker". Here's the Wikipedia article on it. Bonus points if it fits in 3 lines / 70 characters each.