In this article presents applications of Backtracking method using object-oriented programming in C #. Object-oriented programming means programs with new types that integrate both data and methods associated with the creation, processing and destruction of such data. To gain advantages through abstraction programming (the program is no longer a succession of processing, but a set of objects to life (Figure 1), have different properties, are capable of specific actions and interact in the program). Spoke on instantiation new techniques, derivation and polymorphism object types.