Alfredvc/chess-autocomplete-lichess

这是一个紧凑的二进制重新编码的Lichess月度数据库数据集，覆盖了2024年1月至2025年9月共21个月的标准化评级国际象棋游戏。该数据集专为训练序列模型而设计：每个移动被编码为一个16位令牌，每个游戏是可变长度的令牌序列，每局游戏的元数据存储在Parquet文件中。数据来源于Lichess月度数据库，使用特定的编码器处理。文件布局包括每月的三个文件：二进制令牌文件、映射文件和元数据Parquet文件。总数据量约为272 GB，其中元数据文件约13 GB。移动令牌编码使用16位表示，包含操作类型、起始和目的位置等信息。数据集适用于语言建模和序列建模任务，基于CC0 1.0许可证发布。A compact binary re-encoding of the Lichess monthly database for standard rated games, covering 21 consecutive months (January 2024 through September 2025). Designed for training sequence models on chess games — every move is one 16-bit token, every game is a variable-length sequence of tokens, and per-game metadata lives in Parquet alongside. Source PGNs were processed with a specific encoder. The file layout includes three files per month: binary token file, map file, and metadata Parquet file. Total size is ~272 GB, with metadata files ~13 GB. Move token encoding uses 16 bits per move with fields for operation, source, and destination. Suitable for language modeling and sequence modeling tasks, released under CC0 1.0 license.