Chess Database

The file all.pgn.zip contains the raw data, 3.5 million chess games in PGN (portable game notation) format, played from 1783 to 2009. The file all_with_filtered_anotations.zip contains 1.4 million games resulting of the filtering of the raw data, games with corrupt or missing data, in txt format. The filtered data was used for the data analysis in the paper 'A study of memory effects in a chess database' (PLoS One). For further information check the references below.