You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

pgn-extract-wg
0.1.0

This version was deleted from PyPI around 2025-09-04. Installing fails with:
$ pip3 install pgn-extract-wg==0.1.0 ERROR: Could not find a version that satisfies the requirement pgn-extract-wg==0.1.0