A command line program for playing an abstract board game called Black Box. You can see the rules here. It takes place on a 10x10 grid. Rows 0 and 9, and columns 0 and 9 (border squares), are used by the guessing player for shooting rays into the black box. The atoms are restricted to being within rows 1-8 and columns 1-8.
In my version, the guessing player will start with 25 points. As stated on the Wikipedia page, "Each entry and exit location counts as a point" that is deducted from the current score. If any entry/exit location of the current ray is shared with any entry/exit of a previous ray, then it should not be deducted from the score again. Each incorrect guess of an atom position will cost 5 points, but repeat guesses should not be deducted from the score again.
There is an online implementation here that you can try out to get a feel for the game. It uses different scoring and only allows exactly four atoms (whereas my version allows any number of atoms >= 1).
Here's a very simple example of how the program works:
game = BlackBoxGame([(3,2),(1,7),(4,6),(8,8)])
move_result = game.shoot_ray(3,9)
game.shoot_ray(0,2)
guess_result = game.guess_atom(5,5)
score = game.get_score()
atoms = game.atoms_left()