The article describes a new Boolean minimization and single-level partitioning method based on the BOOM minimization system [6]. The minimization is performed with respect to the restrictions stated for the number of inputs and outputs of individual components and/or with the goal to reach load balancing for the inputs. The method can handle extremely large functions (up to thousands of input variables) in a very short time and its use is advantageous above all for highly unspecified functions, where the number of don't cares is large.