RAW_DATA_LICENSES.md

Raw data licensing and provenance notice

This dataset repository uses license: other because the included raw data does not have one uniform declared license.

• Construction code in hengyuf/diffusion-vs-ar is distributed under the Apache License 2.0. That software license does not automatically relicense all third-party puzzle data.
• The original easy Sudoku CSV files are mirrored from the pinned fhyfhy/diffusion-vs-ar-hard-sudoku dataset snapshot.
• The sudoku_extreme_* files derive from sapientinc/sudoku-extreme, which combines several community benchmark sources and does not declare one uniform dataset license.

Files under raw/ are unmodified research mirrors with byte-level provenance in metadata/raw_manifest.json. Their inclusion here does not grant rights beyond those provided by their respective upstream sources. Users are responsible for reviewing and complying with the upstream terms before redistribution or use, especially outside research contexts.

Upstream references:

• https://huggingface.co/datasets/fhyfhy/diffusion-vs-ar-hard-sudoku
• https://huggingface.co/datasets/sapientinc/sudoku-extreme
• https://github.com/hengyuf/diffusion-vs-ar/tree/hard-sudoku-datasets