Open Data Repository
Curated, clean, and annotated chess datasets for research. All datasets are hosted on Zenodo to ensure long-term preservation and distinct DOIs.
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Blitz Decision Fatigue (v1.0) Published
DOI: 10.5281/zenodo.xxxxxxx
A clean subset of 50,000 anonymized Blitz games filtered for players rated 1500-2200. Specifically annotated with move-times to calculate decision speed degradation over game phases.
Fields: move_ply, clock_time, time_spent, eval_centipawn, is_blunder
Lichess Open Database (Mirror) External Mirror
The gold standard for open chess data. We link to the "Elite" subsets which are most useful for researchers looking for high-quality play patterns without engine noise.
Tactical Error Clusters (KID) In Preparation
Planned DOI: Pending Review
A proposed dataset mapping 12,000 instances of typical tactical blunders in the King's Indian Defense structure. Designed specifically for training pattern recognition models.
Target Fields: fen, blunder_move, correct_move, tactical_motif_tag
How to Cite
Please cite the specific dataset DOI when using our data in your research.
Varshney, S. (2026). Blitz Decision Fatigue Dataset (v1.0). Chess Multiverse. DOI: 10.5281/zenodo.xxxxxxx
Data Ethics: All datasets are anonymized to remove PII and comply with platform terms of service.
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