FlatZinc is a low-level modelling language for constraint problems. It is designed to be easily interfaceable to constraint solvers (like Gecode). For more information on FlatZinc, please refer to the MiniZinc pages of the G12 project .

The FlatZinc interpreter that ships with Gecode supports the FlatZinc language and MiniZinc global constraint definitions of MiniZinc version 1.6.0.