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OpenSpiel 1.2
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@lanctot lanctot released this 21 Aug 23:05
· 1097 commits to master since this release
v1.2
9e4559b

This release adds several games and algorithms, improvements, bug fixes, and documentation updates.

Support and Process changes

  • Upgrade support for newer versions of dependencies
  • Add dependency to pybind11_abseil

Games

  • 2048
  • Checkers
  • Dynamic routing game
  • Euchre
  • Mancala
  • Nim
  • Phantom Go

Algorithms

  • Asymmetric Q-learning
  • Magnetic Mirror Descent (MMD)
  • NeuRD (PyTorch)
  • Policy gradients (JAX)
  • Sample-based NeuRD loss (PyTorch)
  • Stackelberg solver
  • WoLF-PHC

Improvements and other additions

  • Blackjack: add observation tensor
  • C++ DQN: in-memory target net, saving + loading of model
  • Core API reference
  • Remove hard-coded inclusion of Hanabi and ACPC in setup.py

Fixes

  • Colored Trails: fix max utility
  • MCTS handling of chance nodes: properly handle them not just at the root
  • Nash averaging optimization fix
  • Othello: fix the max game length
  • Policy aggregator, surface copy -> deep copy
  • pybind11: change game references to shared pointers

Several other miscellaneous fixes and improvements.

Acknowledgments

Thanks to DeepMind for continued support of development and maintenance of OpenSpiel.

Thanks to all of our contributors:

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