Dataset from Hugging Face · thomasd1
thomasd1/aix-lichess-database
- License
- CC0 1.0commercial use allowedLicense text
- This license allows commercial use. Usually you must credit the author; read the license for the exact terms.
- Formats
- PARQUET
- Size
- 3.2 TB
- Updated
- Sep 26, 2026
Description
Aix-compatible Lichess database This dataset contains the Lichess database of 7+ billion chess games, but in a format queryable using Aix, with the aixchess extension for DuckDB. Three compression levels (Low, Medium, and High) are offered for the chess game encoding, enabling a trade-off between decoding speed and size. The Parquet files themselves are all zstd-compressed at level 19. Generated using pgn-to-aix. See my blog post for more details. Example DuckDB commands:…
Description from Hugging Face, shortened.
Files (100)
- PARQUEThigh_compression/aix_lichess_2013-01_high.parquet7 MB
- PARQUEThigh_compression/aix_lichess_2013-02_high.parquet7.1 MB
- PARQUEThigh_compression/aix_lichess_2013-03_high.parquet9.2 MB
- PARQUEThigh_compression/aix_lichess_2013-04_high.parquet9.1 MB
- PARQUEThigh_compression/aix_lichess_2013-05_high.parquet10 MB
- PARQUEThigh_compression/aix_lichess_2013-06_high.parquet13 MB
- PARQUEThigh_compression/aix_lichess_2013-07_high.parquet17 MB
- PARQUEThigh_compression/aix_lichess_2013-08_high.parquet19 MB
- PARQUEThigh_compression/aix_lichess_2013-09_high.parquet19 MB
- PARQUEThigh_compression/aix_lichess_2013-10_high.parquet25 MB
- PARQUEThigh_compression/aix_lichess_2013-11_high.parquet30 MB
- PARQUEThigh_compression/aix_lichess_2013-12_high.parquet36 MB
- PARQUEThigh_compression/aix_lichess_2014-01_high.parquet43 MB
- PARQUEThigh_compression/aix_lichess_2014-02_high.parquet44 MB
- PARQUEThigh_compression/aix_lichess_2014-03_high.parquet51 MB
- PARQUEThigh_compression/aix_lichess_2014-04_high.parquet54 MB
- PARQUEThigh_compression/aix_lichess_2014-05_high.parquet68 MB
- PARQUEThigh_compression/aix_lichess_2014-06_high.parquet72 MB
- PARQUEThigh_compression/aix_lichess_2014-07_high.parquet79 MB
- PARQUEThigh_compression/aix_lichess_2014-08_high.parquet76 MB
- PARQUEThigh_compression/aix_lichess_2014-09_high.parquet71 MB
- PARQUEThigh_compression/aix_lichess_2014-10_high.parquet81 MB
- PARQUEThigh_compression/aix_lichess_2014-11_high.parquet90 MB
- PARQUEThigh_compression/aix_lichess_2014-12_high.parquet103 MB
- PARQUEThigh_compression/aix_lichess_2015-01_high.parquet113 MB
- PARQUEThigh_compression/aix_lichess_2015-02_high.parquet112 MB
- PARQUEThigh_compression/aix_lichess_2015-03_high.parquet124 MB
- PARQUEThigh_compression/aix_lichess_2015-04_high.parquet126 MB
- PARQUEThigh_compression/aix_lichess_2015-05_high.parquet156 MB
- PARQUEThigh_compression/aix_lichess_2015-06_high.parquet172 MB
- PARQUEThigh_compression/aix_lichess_2015-07_high.parquet193 MB
- PARQUEThigh_compression/aix_lichess_2015-08_high.parquet201 MB
- PARQUEThigh_compression/aix_lichess_2015-09_high.parquet219 MB
- PARQUEThigh_compression/aix_lichess_2015-10_high.parquet259 MB
- PARQUEThigh_compression/aix_lichess_2015-11_high.parquet267 MB
- PARQUEThigh_compression/aix_lichess_2015-12_high.parquet303 MB
- PARQUEThigh_compression/aix_lichess_2016-01_high.parquet348 MB
- PARQUEThigh_compression/aix_lichess_2016-02_high.parquet364 MB
- PARQUEThigh_compression/aix_lichess_2016-03_high.parquet420 MB
- PARQUEThigh_compression/aix_lichess_2016-04_high.parquet428 MB
- PARQUEThigh_compression/aix_lichess_2016-05_high.parquet447 MB
- PARQUEThigh_compression/aix_lichess_2016-06_high.parquet441 MB
- PARQUEThigh_compression/aix_lichess_2016-07_high.parquet454 MB
- PARQUEThigh_compression/aix_lichess_2016-08_high.parquet466 MB
- PARQUEThigh_compression/aix_lichess_2016-09_high.parquet489 MB
- PARQUEThigh_compression/aix_lichess_2016-10_high.parquet545 MB
- PARQUEThigh_compression/aix_lichess_2016-11_high.parquet579 MB
- PARQUEThigh_compression/aix_lichess_2016-12_high.parquet687 MB
- PARQUEThigh_compression/aix_lichess_2017-01_high.parquet772 MB
- PARQUEThigh_compression/aix_lichess_2017-02_high.parquet732 MB
- PARQUEThigh_compression/aix_lichess_2017-03_high.parquet889 MB
- PARQUEThigh_compression/aix_lichess_2017-04_high.parquet1.4 GB
- PARQUEThigh_compression/aix_lichess_2017-05_high.parquet1.5 GB
- PARQUEThigh_compression/aix_lichess_2017-06_high.parquet1.4 GB
- PARQUEThigh_compression/aix_lichess_2017-07_high.parquet1.5 GB
- PARQUEThigh_compression/aix_lichess_2017-08_high.parquet1.5 GB
- PARQUEThigh_compression/aix_lichess_2017-09_high.parquet1.5 GB
- PARQUEThigh_compression/aix_lichess_2017-10_high.parquet1.7 GB
- PARQUEThigh_compression/aix_lichess_2017-11_high.parquet1.7 GB
- PARQUEThigh_compression/aix_lichess_2017-12_high.parquet2 GB
- PARQUEThigh_compression/aix_lichess_2018-01_high.parquet2.2 GB
- PARQUEThigh_compression/aix_lichess_2018-02_high.parquet2.1 GB
- PARQUEThigh_compression/aix_lichess_2018-03_high.parquet2.4 GB
- PARQUEThigh_compression/aix_lichess_2018-04_high.parquet2.3 GB
- PARQUEThigh_compression/aix_lichess_2018-05_high.parquet2.5 GB
- PARQUEThigh_compression/aix_lichess_2018-06_high.parquet2.3 GB
- PARQUEThigh_compression/aix_lichess_2018-07_high.parquet2.4 GB
- PARQUEThigh_compression/aix_lichess_2018-08_high.parquet2.6 GB
- PARQUEThigh_compression/aix_lichess_2018-09_high.parquet2.6 GB
- PARQUEThigh_compression/aix_lichess_2018-10_high.parquet2.8 GB
- PARQUEThigh_compression/aix_lichess_2018-11_high.parquet3 GB
- PARQUEThigh_compression/aix_lichess_2018-12_high.parquet3.6 GB
- PARQUEThigh_compression/aix_lichess_2019-01_high.parquet3.9 GB
- PARQUEThigh_compression/aix_lichess_2019-02_high.parquet3.5 GB
- PARQUEThigh_compression/aix_lichess_2019-03_high.parquet3.9 GB
- PARQUEThigh_compression/aix_lichess_2019-04_high.parquet3.8 GB
- PARQUEThigh_compression/aix_lichess_2019-05_high.parquet4 GB
- PARQUEThigh_compression/aix_lichess_2019-06_high.parquet3.8 GB
- PARQUEThigh_compression/aix_lichess_2019-07_high.parquet4 GB
- PARQUEThigh_compression/aix_lichess_2019-08_high.parquet4.1 GB
- PARQUEThigh_compression/aix_lichess_2019-09_high.parquet4.1 GB
- PARQUEThigh_compression/aix_lichess_2019-10_high.parquet4.5 GB
- PARQUEThigh_compression/aix_lichess_2019-11_high.parquet4.5 GB
- PARQUEThigh_compression/aix_lichess_2019-12_high.parquet4.9 GB
- PARQUEThigh_compression/aix_lichess_2020-01_high.parquet5.2 GB
- PARQUEThigh_compression/aix_lichess_2020-02_high.parquet4.9 GB
- PARQUEThigh_compression/aix_lichess_2020-03_high.parquet6.3 GB
- PARQUEThigh_compression/aix_lichess_2020-04_high.parquet8.5 GB
- PARQUEThigh_compression/aix_lichess_2020-05_high.parquet8.7 GB
- PARQUEThigh_compression/aix_lichess_2020-06_high.parquet8.1 GB
- PARQUEThigh_compression/aix_lichess_2020-07_high.parquet8 GB
- PARQUEThigh_compression/aix_lichess_2020-08_high.parquet8 GB
- PARQUEThigh_compression/aix_lichess_2020-09_high.parquet7.6 GB
- PARQUEThigh_compression/aix_lichess_2020-10_high.parquet7.9 GB
- PARQUEThigh_compression/aix_lichess_2020-11_high.parquet8.9 GB
- PARQUEThigh_compression/aix_lichess_2020-12_high.parquet10 GB
- PARQUEThigh_compression/aix_lichess_2021-01_high.parquet11 GB
- PARQUEThigh_compression/aix_lichess_2021-02_high.parquet10 GB
- PARQUEThigh_compression/aix_lichess_2021-03_high.parquet12 GB
- PARQUEThigh_compression/aix_lichess_2021-04_high.parquet11 GB
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