Befunge, a programming language designed to be hard to compile (and read)

[earcar]

http://en.wikipedia.org/wiki/Befunge

[wccrawford]

I actually think the 2D layout of the code is interesting... But more suited to a GUI than a text-based programming language.

Of course, the point wasn't suitability, but rather inscrutability, so they accomplished their goal.

[acron0]

That's not a patch on Brainfuck: http://en.wikipedia.org/wiki/Brainfuck

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