AlphaZero has been made for perfect information games. That said, the Monte Carlo Tree Search in the library can be run with any agent that implements a value and policy function. So, while the AlphaZeroAgent in agents.py wouldn't fit the problem you are describing, implementing something like Meta's ReBeL (https://ai.meta.com/blog/rebel-a-general-game-playing-ai-bot...) shouldn't be an impossible task. The Monte Carlo Tree Search algorithm in mcts.py has been written to be modular from the start exactly to do something like this!