The project is to develop 5x5 Tic-Tac-Toe. It's just the same thing as Tic-Tac-Toe but with 5 rows and 5 columns.
MUST develop it using Java and in the MVC design pattern. Your challenge will be the separation of the parts into the model/view/controller. It is not sufficient to have a working game. The point of the project is the design pattern.