Somehow, I have a rather small one: https://www.ioccc.org/2012/kang/kang.c

I think I have submitted once or twice before that got won, and all other entries were excessively long to be honest. Guess a conciseness is a virtue.

> Guess a conciseness is a virtue.

Indeed; quoting from my winning entry [1] that same year:

> This program celebrates the close connection between obfuscation and conciseness, by implementing the most concise language known, Binary Lambda Calculus (BLC).

> The submission implements the universal machine in the most concise manner conceivable.

[1] https://www.ioccc.org/2012/tromp/hint.html