Clingo is part of the Potassco project for Answer Set Programming (ASP). ASP offers a simple and powerful modeling language to describe combinatorial problems as logic programs. The clingo system then takes such a logic program and computes answer sets representing solutions to the given problem. To get an idea, check our Getting Started page and the online version of clingo.
Please consult the following resources for further information:
Clingo is distributed under the MIT License.