# wizard_game Pure-Python rules engine of Wizard (no dependencies). It is used by the game server and can be installed on its own to train AI players: ```bash pip install ./wizard_server/game_logic ``` ```python import random from wizard_game import WizardGame, GameOptions game = WizardGame(num_players=4, options=GameOptions(not_equal=True), seed=1) rng = random.Random(1) while not game.is_finished: player = game.current_player obs = game.observation(player) # what this player may see action = rng.choice(obs.legal_actions) # Bid / PlayCard / ChooseTrump events = game.apply(player, action) # TrickCompleted, RoundCompleted, ... print(game.scores, game.winners()) ``` `Observation.to_dict()` / `Observation.from_dict()` and `action_to_dict()` / `action_from_dict()` define the JSON format that the server sends to web clients and to the AI service.