coolguy 25a3fba53f Use Deep CFR diagnostics for IS-MCTS eval
Wrap AlphaZeroNet with a logits-only view so IS-MCTS training evaluation can call evaluate_strategy_network and emit the same full diagnostic metric set as Deep CFR. Adds root prior capture and per-iteration MCTS entropy, value error, and policy-vs-search KL metrics.

Tests: uv run python -m pytest tests/games/classic/ismcts/ -x; uv run python -m pytest tests/games/classic/test_deep_cfr_trainer.py -x; uv run lost-cities-ismcts train --config configs/ismcts/mini.yaml --set run.experiment_name=ismcts-metrics-smoke --set run.max_iterations=2 --set training.games_per_iter=2
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coolrl-lost-cities

Focused Lost Cities extraction from the legacy coolrl repository.

The current implementation starts with the classic two-player card game:

  • classic 5-expedition rules by default
  • Python/Cython game engine
  • env wrapper
  • random, discard-only, and safe-heuristic bots
  • core rule, scoring, mask, env, canonical-state, bot, and GUI smoke tests

Training code, Deep CFR, learned-policy evaluation, GUI, and web client are intentionally outside the first port.

Development

uv run pytest tests/games/classic
uv run lost-cities-classic

For future GUI work, install the optional GUI dependencies:

uv sync --extra gui

Run the classic pygame GUI:

uv run lost-cities-classic-gui --mode pvc --bot safe-heuristic

The GUI uses the in-process Cython game engine.

Basic Usage

from coolrl_lost_cities.games.classic import GameState, build_bot, classic_config

state = GameState.new_game(classic_config(seed=1))
bot = build_bot("random", seed=1)

while not state.terminal:
    state.apply_action(bot.act(state))

print(state.total_score(0), state.total_score(1))

See classic port notes for the current direction.

S
Description
Lost Cities
Readme
7.7 MiB
Languages
Python 73.3%
Cython 21.7%
Julia 4.8%
Shell 0.2%