CHIQRSX9+

CHIQRSX9+ is a supposedly Turing-complete extension to HQ9+ designed by Ørjan Johansen in April 2002. It implements the following commands:

Hello, world!
H

Cat
C

CHIQRSX9+ Interpreter
I

Quine
Q

External resources

 * The original CHIQRSX9+ interpreter in Perl
 * Author's homepage
 * Updated interpreter