A solving engine is a type of software that uses algorithms and other methods to solve complex problems and make decisions. Solving engines are commonly used in a wide range of fields, including operations research, artificial intelligence, and computer science. They can be applied to many different types of problems, such as scheduling, routing, optimization, and decision making. Solving engines typically use a combination of mathematical techniques and heuristics to generate solutions to problems, and can be designed to operate in real time or as part of a larger system.