This is a simple bingo caller and called number tracker.
The code is mostly an adaptation of mgilson's answer to this stackoverflow question
I added a couple of additional functions to make the game more user-friendly, and to enable the use of different game modes (such as four corners or blackout).
The batch file simply runs the program with a pause at the end, allowing you for a smoother exit from the program at game finish, and leaves the game on the screen for a moment in case you accidentally exited prematurely.