The competition can be found here: https://www.kaggle.com/c/halite/overview
The most up to date environment code can be found here: https://github.com/Kaggle/kaggle-environments/tree/master/kaggle_environments/envs/halite
The full source code for the Halite SDK: https://github.com/Kaggle/kaggle-environments/blob/master/kaggle_environments/envs/halite/helpers.py
The 'Halite Getting Started' notebook: https://www.kaggle.com/mylesoneill/halite-template-bot
Competition timeline: https://www.kaggle.com/c/halite/overview/timeline
Competition rules: https://www.kaggle.com/c/halite/overview/halite-rules
On this git, you can find the code used to submit a hybrid deep learning/hard coded agent based on a Deep Q Network using PyTorch that achieved a rank of top 350 in season 4 of the Kaggle Halite competition
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