--- language: - en size_categories: - 1B<n<10B source_datasets: - database.lichess.org task_categories: - other paperswithcode_id: lichess_uci pretty_name: Lichess.org Database in UCI format tags: - chess - UCI - Lichess dataset_info: - config_name: 201301-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 20700133 num_examples: 121332 download_size: 6335452 dataset_size: 20700133 - config_name: 201301-moves features: - name: site dtype: string - name: transcript dtype: string splits: - name: train num_bytes: 42454117.656856485 num_examples: 120133 download_size: 992204415449 dataset_size: 1636203333850.0193 - config_name: 201302-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 22927879 num_examples: 123961 download_size: 6279862 dataset_size: 22927879 - config_name: 201303-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 29289830 num_examples: 158635 download_size: 8030446 dataset_size: 29289830 - config_name: 201304-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 27075305 num_examples: 157871 download_size: 8357025 dataset_size: 27075305 - config_name: 201305-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 33350934 num_examples: 179550 download_size: 9192791 dataset_size: 33350934 - config_name: 201306-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 41669406 num_examples: 224679 download_size: 11620567 dataset_size: 41669406 - config_name: 201307-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 54335491 num_examples: 293459 download_size: 15253359 dataset_size: 54335491 - config_name: 201308-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 60378299 num_examples: 325525 download_size: 16982409 dataset_size: 60378299 - config_name: 201309-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 55675760 num_examples: 325098 download_size: 17609637 dataset_size: 55675760 - config_name: 201310-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 76316092 num_examples: 411039 download_size: 21353699 dataset_size: 76316092 - config_name: 201311-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 90589975 num_examples: 487012 download_size: 25627636 dataset_size: 90589975 - config_name: 201312-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 107472730 num_examples: 578262 download_size: 30655377 dataset_size: 107472730 - config_name: 201402-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 128455638 num_examples: 692394 download_size: 37469696 dataset_size: 128455638 - config_name: 201403-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 147522312 num_examples: 795173 download_size: 42874408 dataset_size: 147522312 - config_name: 201404-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 151205520 num_examples: 810463 download_size: 43806093 dataset_size: 151205520 - config_name: 201405-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 170256800 num_examples: 905374 download_size: 48895332 dataset_size: 170256800 - config_name: 201406-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 181243395 num_examples: 961868 download_size: 52017284 dataset_size: 181243395 - config_name: 201407-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 197411788 num_examples: 1048440 download_size: 57004087 dataset_size: 197411788 - config_name: 201408-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 191709279 num_examples: 1013294 download_size: 55545739 dataset_size: 191709279 - config_name: 201409-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 189380199 num_examples: 1000056 download_size: 55076845 dataset_size: 189380199 - config_name: 201410-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: float64 - name: blackelo dtype: float64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 211712151 num_examples: 1111302 download_size: 61430690 dataset_size: 211712151 - config_name: 201411-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 230870247 num_examples: 1209291 download_size: 67539038 dataset_size: 230870247 - config_name: 201412-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 258590928 num_examples: 1350176 download_size: 76113679 dataset_size: 258590928 - config_name: 201501-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 287401363 num_examples: 1497237 download_size: 84647618 dataset_size: 287401363 - config_name: 201502-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 287025893 num_examples: 1495553 download_size: 85295087 dataset_size: 287025893 - config_name: 201503-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 334286646 num_examples: 1742733 download_size: 100871042 dataset_size: 334286646 - config_name: 201504-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 343520167 num_examples: 1785418 download_size: 102864814 dataset_size: 343520167 - config_name: 201505-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 414773157 num_examples: 2137557 download_size: 123203803 dataset_size: 414773157 - config_name: 201506-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 454071222 num_examples: 2324106 download_size: 134047483 dataset_size: 454071222 - config_name: 201507-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 481735660 num_examples: 2455141 download_size: 141800743 dataset_size: 481735660 - config_name: 201508-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 515482698 num_examples: 2621861 download_size: 152343588 dataset_size: 515482698 - config_name: 201509-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 557031485 num_examples: 2844677 download_size: 166775616 dataset_size: 557031485 - config_name: 201510-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 667706163 num_examples: 3400418 download_size: 201875291 dataset_size: 667706163 - config_name: 201511-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 703805155 num_examples: 3595776 download_size: 214539337 dataset_size: 703805155 - config_name: 201512-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 815327955 num_examples: 4161162 download_size: 250866581 dataset_size: 815327955 - config_name: 201601-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 932274709 num_examples: 4770357 download_size: 290332072 dataset_size: 932274709 - config_name: 201602-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 978121579 num_examples: 5015361 download_size: 307695357 dataset_size: 978121579 - config_name: 201603-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 1130121428 num_examples: 5801234 download_size: 357678101 dataset_size: 1130121428 - config_name: 201604-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 1154154577 num_examples: 5922667 download_size: 366430170 dataset_size: 1154154577 - config_name: 201605-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 1209671107 num_examples: 6225957 download_size: 385939447 dataset_size: 1209671107 - config_name: 201606-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 1196340177 num_examples: 6136419 download_size: 381143486 dataset_size: 1196340177 - config_name: 201607-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 1229377015 num_examples: 6275933 download_size: 390047632 dataset_size: 1229377015 description: '"The dataset contains games from the Lichess.org open database converted from PGN format to UCI format. It is divided into two main configurations: `moves` and `headers`. The `moves` configuration includes a UUID called `site` and the UCI moves in a column called `transcript`, while the `headers` configuration includes metadata such as player ELO ratings, game outcome, and dates. The data is subset based on the year and month (yyyymm format)." ' configs: - config_name: 201301-headers data_files: - split: train path: headers/201301/train-* - config_name: 201301-moves data_files: - split: train path: data/201301-* default: true - config_name: 201302-headers data_files: - split: train path: headers/201302/train-* - config_name: 201302-moves data_files: - split: train path: data/201302-* - config_name: 201303-headers data_files: - split: train path: headers/201303/train-* - config_name: 201303-moves data_files: - split: train path: data/201303-* - config_name: 201304-headers data_files: - split: train path: headers/201304/train-* - config_name: 201304-moves data_files: - split: train path: data/201304-* - config_name: 201305-headers data_files: - split: train path: headers/201305/train-* - config_name: 201305-moves data_files: - split: train path: data/201305-* - config_name: 201306-headers data_files: - split: train path: headers/201306/train-* - config_name: 201306-moves data_files: - split: train path: data/201306-* - config_name: 201307-headers data_files: - split: train path: headers/201307/train-* - config_name: 201307-moves data_files: - split: train path: data/201307-* - config_name: 201308-headers data_files: - split: train path: headers/201308/train-* - config_name: 201308-moves data_files: - split: train path: data/201308-* - config_name: 201309-headers data_files: - split: train path: headers/201309/train-* - config_name: 201309-moves data_files: - split: train path: data/201309-* - config_name: 201310-headers data_files: - split: train path: headers/201310/train-* - config_name: 201310-moves data_files: - split: train path: data/201310-* - config_name: 201311-headers data_files: - split: train path: headers/201311/train-* - config_name: 201311-moves data_files: - split: train path: data/201311-* - config_name: 201312-headers data_files: - split: train path: headers/201312/train-* - config_name: 201312-moves data_files: - split: train path: data/201312-* - config_name: 201401-moves data_files: - split: train path: data/201401-* - config_name: 201402-headers data_files: - split: train path: headers/201402/train-* - config_name: 201402-moves data_files: - split: train path: data/201402-* - config_name: 201403-headers data_files: - split: train path: headers/201403/train-* - config_name: 201403-moves data_files: - split: train path: data/201403-* - config_name: 201404-headers data_files: - split: train path: headers/201404/train-* - config_name: 201404-moves data_files: - split: train path: data/201404-* - config_name: 201405-headers data_files: - split: train path: headers/201405/train-* - config_name: 201405-moves data_files: - split: train path: data/201405-* - config_name: 201406-headers data_files: - split: train path: headers/201406/train-* - config_name: 201406-moves data_files: - split: train path: data/201406-* - config_name: 201407-headers data_files: - split: train path: headers/201407/train-* - config_name: 201407-moves data_files: - split: train path: data/201407-* - config_name: 201408-headers data_files: - split: train path: headers/201408/train-* - config_name: 201408-moves data_files: - split: train path: data/201408-* - config_name: 201409-headers data_files: - split: train path: headers/201409/train-* - config_name: 201409-moves data_files: - split: train path: data/201409-* - config_name: 201410-headers data_files: - split: train path: headers/201410/train-* - config_name: 201410-moves data_files: - split: train path: data/201410-* - config_name: 201411-headers data_files: - split: train path: headers/201411/train-* - config_name: 201411-moves data_files: - split: train path: data/201411-* - config_name: 201412-headers data_files: - split: train path: headers/201412/train-* - config_name: 201412-moves data_files: - split: train path: data/201412-* - config_name: 201501-headers data_files: - split: train path: headers/201501/train-* - config_name: 201501-moves data_files: - split: train path: data/201501-* - config_name: 201502-headers data_files: - split: train path: headers/201502/train-* - config_name: 201502-moves data_files: - split: train path: data/201502-* - config_name: 201503-headers data_files: - split: train path: headers/201503/train-* - config_name: 201503-moves data_files: - split: train path: data/201503-* - config_name: 201504-headers data_files: - split: train path: headers/201504/train-* - config_name: 201504-moves data_files: - split: train path: data/201504-* - config_name: 201505-headers data_files: - split: train path: headers/201505/train-* - config_name: 201505-moves data_files: - split: train path: data/201505-* - config_name: 201506-headers data_files: - split: train path: headers/201506/train-* - config_name: 201506-moves data_files: - split: train path: data/201506-* - config_name: 201507-headers data_files: - split: train path: headers/201507/train-* - config_name: 201507-moves data_files: - split: train path: data/201507-* - config_name: 201508-headers data_files: - split: train path: headers/201508/train-* - config_name: 201508-moves data_files: - split: train path: data/201508-* - config_name: 201509-headers data_files: - split: train path: headers/201509/train-* - config_name: 201509-moves data_files: - split: train path: data/201509-* - config_name: 201510-headers data_files: - split: train path: headers/201510/train-* - config_name: 201510-moves data_files: - split: train path: data/201510-* - config_name: 201511-headers data_files: - split: train path: headers/201511/train-* - config_name: 201511-moves data_files: - split: train path: data/201511-* - config_name: 201512-headers data_files: - split: train path: headers/201512/train-* - config_name: 201512-moves data_files: - split: train path: data/201512-* - config_name: 201601-headers data_files: - split: train path: headers/201601/train-* - config_name: 201601-moves data_files: - split: train path: data/201601-* - config_name: 201602-headers data_files: - split: train path: headers/201602/train-* - config_name: 201602-moves data_files: - split: train path: data/201602-* - config_name: 201603-headers data_files: - split: train path: headers/201603/train-* - config_name: 201603-moves data_files: - split: train path: data/201603-* - config_name: 201604-headers data_files: - split: train path: headers/201604/train-* - config_name: 201604-moves data_files: - split: train path: data/201604-* - config_name: 201605-headers data_files: - split: train path: headers/201605/train-* - config_name: 201605-moves data_files: - split: train path: data/201605-* - config_name: 201606-headers data_files: - split: train path: headers/201606/train-* - config_name: 201606-moves data_files: - split: train path: data/201606-* - config_name: 201607-headers data_files: - split: train path: headers/201607/train-* - config_name: 201607-moves data_files: - split: train path: data/201607-* - config_name: 201608-moves data_files: - split: train path: data/201608-* - config_name: 201609-moves data_files: - split: train path: data/201609-* - config_name: 201610-moves data_files: - split: train path: data/201610-* - config_name: 201611-moves data_files: - split: train path: data/201611-* - config_name: 201612-moves data_files: - split: train path: data/201612-* - config_name: 201701-moves data_files: - split: train path: data/201701-* - config_name: 201702-moves data_files: - split: train path: data/201702-* - config_name: 201703-moves data_files: - split: train path: data/201703-* - config_name: 201704-moves data_files: - split: train path: data/201704-* - config_name: 201705-moves data_files: - split: train path: data/201705-* - config_name: 201706-moves data_files: - split: train path: data/201706-* - config_name: 201707-moves data_files: - split: train path: data/201707-* - config_name: 201708-moves data_files: - split: train path: data/201708-* - config_name: 201709-moves data_files: - split: train path: data/201709-* - config_name: 201710-moves data_files: - split: train path: data/201710-* - config_name: 201711-moves data_files: - split: train path: data/201711-* - config_name: 201712-moves data_files: - split: train path: data/201712-* - config_name: 201801-moves data_files: - split: train path: data/201801-* - config_name: 201802-moves data_files: - split: train path: data/201802-* - config_name: 201803-moves data_files: - split: train path: data/201803-* - config_name: 201804-moves data_files: - split: train path: data/201804-* - config_name: 201805-moves data_files: - split: train path: data/201805-* - config_name: 201806-moves data_files: - split: train path: data/201806-* - config_name: 201807-moves data_files: - split: train path: data/201807-* - config_name: 201808-moves data_files: - split: train path: data/201808-* - config_name: 201809-moves data_files: - split: train path: data/201809-* - config_name: 201810-moves data_files: - split: train path: data/201810-* - config_name: 201811-moves data_files: - split: train path: data/201811-* - config_name: 201812-moves data_files: - split: train path: data/201812-* - config_name: 201901-moves data_files: - split: train path: data/201901-* - config_name: 201902-moves data_files: - split: train path: data/201902-* - config_name: 201903-moves data_files: - split: train path: data/201903-* - config_name: 201904-moves data_files: - split: train path: data/201904-* - config_name: 201905-moves data_files: - split: train path: data/201905-* - config_name: 201906-moves data_files: - split: train path: data/201906-* - config_name: 201907-moves data_files: - split: train path: data/201907-* - config_name: 201908-moves data_files: - split: train path: data/201908-* - config_name: 201909-moves data_files: - split: train path: data/201909-* - config_name: 201910-moves data_files: - split: train path: data/201910-* - config_name: 201911-moves data_files: - split: train path: data/201911-* - config_name: 201912-moves data_files: - split: train path: data/201912-* - config_name: 202001-moves data_files: - split: train path: data/202001-* - config_name: 202002-moves data_files: - split: train path: data/202002-* - config_name: 202003-moves data_files: - split: train path: data/202003-* - config_name: 202004-moves data_files: - split: train path: data/202004-* - config_name: 202005-moves data_files: - split: train path: data/202005-* - config_name: 202006-moves data_files: - split: train path: data/202006-* - config_name: 202007-moves data_files: - split: train path: data/202007-* - config_name: 202008-moves data_files: - split: train path: data/202008-* - config_name: 202009-moves data_files: - split: train path: data/202009-* - config_name: 202010-moves data_files: - split: train path: data/202010-* - config_name: 202011-moves data_files: - split: train path: data/202011-* - config_name: 202012-moves data_files: - split: train path: data/202012-* - config_name: 202101-moves data_files: - split: train path: data/202101-* - config_name: 202102-moves data_files: - split: train path: data/202102-* - config_name: 202103-moves data_files: - split: train path: data/202103-* - config_name: 202104-moves data_files: - split: train path: data/202104-* - config_name: 202105-moves data_files: - split: train path: data/202105-* - config_name: 202106-moves data_files: - split: train path: data/202106-* - config_name: 202107-moves data_files: - split: train path: data/202107-* - config_name: 202108-moves data_files: - split: train path: data/202108-* - config_name: 202109-moves data_files: - split: train path: data/202109-* - config_name: 202110-moves data_files: - split: train path: data/202110-* - config_name: 202111-moves data_files: - split: train path: data/202111-* - config_name: 202112-moves data_files: - split: train path: data/202112-* - config_name: 202201-moves data_files: - split: train path: data/202201-* - config_name: 202202-moves data_files: - split: train path: data/202202-* - config_name: 202203-moves data_files: - split: train path: data/202203-* - config_name: 202204-moves data_files: - split: train path: data/202204-* - config_name: 202205-moves data_files: - split: train path: data/202205-* - config_name: 202206-moves data_files: - split: train path: data/202206-* - config_name: 202207-moves data_files: - split: train path: data/202207-* - config_name: 202208-moves data_files: - split: train path: data/202208-* - config_name: 202209-moves data_files: - split: train path: data/202209-* - config_name: 202210-moves data_files: - split: train path: data/202210-* - config_name: 202211-moves data_files: - split: train path: data/202211-* - config_name: 202212-moves data_files: - split: train path: data/202212-* - config_name: 202301-moves data_files: - split: train path: data/202301-* - config_name: 202302-moves data_files: - split: train path: data/202302-* - config_name: 202303-moves data_files: - split: train path: data/202303-* - config_name: 202304-moves data_files: - split: train path: data/202304-* - config_name: 202305-moves data_files: - split: train path: data/202305-* - config_name: 202306-moves data_files: - split: train path: data/202306-* - config_name: 202307-moves data_files: - split: train path: data/202307-* - config_name: 202308-moves data_files: - split: train path: data/202308-* - config_name: 202309-moves data_files: - split: train path: data/202309-* - config_name: 202310-moves data_files: - split: train path: data/202310-* - config_name: 202311-moves data_files: - split: train path: data/202311-* - config_name: 202312-moves data_files: - split: train path: data/202312-* - config_name: 202401-moves data_files: - split: train path: data/202401-* - config_name: 202402-moves data_files: - split: train path: data/202402-* example: moves: site: xxxxxxx transcript: e2e4 e7e5 g1f3 b8c6 headers: event: Rated Blitz game site: xxxxxxx white: player1 black: player2 result: 1-0 utcdate: '2023-05-21' utctime: '13:45:00' whiteelo: 1500 blackelo: 1400 whiteratingdiff: 10 blackratingdiff: -10 eco: C50 opening: Italian Game timecontrol: 300+0 termination: Normal --- # Dataset Card for Lichess.org Database in UCI format ## Table of Contents - [Table of Contents](#table-of-contents) - [Dataset Description](#dataset-description) - [Dataset Summary](#dataset-summary) - [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards) - [Dataset Structure](#dataset-structure) - [Data Instances](#data-instances) - [Data Fields](#data-fields) - [Data Splits](#data-splits) - [Dataset Creation](#dataset-creation) - [Curation Rationale](#curation-rationale) - [Source Data](#source-data) - [Annotations](#annotations) - [Personal and Sensitive Information](#personal-and-sensitive-information) - [Considerations for Using the Data](#considerations-for-using-the-data) - [Social Impact of Dataset](#social-impact-of-dataset) - [Discussion of Biases](#discussion-of-biases) - [Other Known Limitations](#other-known-limitations) - [Additional Information](#additional-information) - [Dataset Curators](#dataset-curators) - [Licensing Information](#licensing-information) - [Citation Information](#citation-information) - [Contributions](#contributions) ## Dataset Description <!-- - **Homepage:** [Lichess.org Database](https://database.lichess.org/) - **Repository:** [GitHub Repository](https://github.com/lichess-org/database) - **Paper:** N/A - **Leaderboard:** N/A - **Point of Contact:** [Contact Lichess](https://lichess.org/contact) --> ### Dataset Summary The Lichess.org database has been converted to UCI format, making it easier to analyze and interpret chess games. The `moves` configuration captures the sequence of moves using UCI notation, and the `headers` configuration provides comprehensive metadata for each game, enabling detailed statistical and strategic analysis. The data is subset based on the year and month (yyyymm format) the games took place. ### Supported Tasks and Leaderboards This dataset supports tasks related to chess game analysis, including move prediction, game outcome prediction, performance analysis, and opening strategy evaluation. There are no formal leaderboards associated with this dataset. ## Dataset Structure ### Data Instances An example from the `moves` configuration: ```json { "site": "abcd1234", "transcript": "e2e4 e7e5 g1f3 b8c6" } ``` An example from the `headers` configuration: ```json { "event": "Rated Blitz game", "site": "abcd1234", "white": "player1", "black": "player2", "result": "1-0", "utcdate": "2023-05-21", "utctime": "13:45:00", "whiteelo": 1500, "blackelo": 1400, "whiteratingdiff": 10, "blackratingdiff": -10, "eco": "C50", "opening": "Italian Game", "timecontrol": "300+0", "termination": "Normal" } ``` ### Data Fields #### Moves Configuration: - `site`: string, unique identifier for the game. Replays can be viewed by navigating to `https://lichess.org/<site>` - `transcript`: string, sequence of moves in UCI format. #### Headers Configuration: - `event`: string, type of event. - `site`: string, unique identifier for the game. - `white`: string, white player. - `black`: string, black player. - `result`: string, game result. - `utcdate`: date32, date of the game. - `utctime`: time64[us], time of the game. - `whiteelo`: int64, ELO rating of the white player. - `blackelo`: int64, ELO rating of the black player. - `whiteratingdiff`: float64, rating change for the white player. - `blackratingdiff`: float64, rating change for the black player. - `eco`: string, ECO code of the opening. - `opening`: string, name of the opening. - `timecontrol`: string, time control format. - `termination`: string, reason for game termination. ### Data Splits The dataset is divided into monthly splits based on the year and month (yyyymm format). Each split contains both `moves` and `headers` configurations. ## Dataset Creation ### Curation Rationale The dataset was curated to facilitate research and analysis that use chess games, providing both move sequences and comprehensive metadata. ### Source Data #### Initial Data Collection and Normalization The data was collected from the Lichess.org open database, converted from PGN format to UCI format, and organized into `moves` and `headers` configurations. #### Who are the source data producers? The source data comes from games played on Lichess.org, an online platform where users from around the world play chess. This database does not distinguish between human-and bot-played games. However, it's reasonable to assume games played before April 2018 were overwhelmingly played by human players since Lichess.org released its [bot api](https://github.com/lichess-org/api) on April 1st, 2018. ### Annotations #### Annotation process The annotations include metadata such as player ELO ratings, game outcomes, and dates, which were extracted from the original PGN files and normalized into a structured format. #### Who are the annotators? The annotations were generated by the Lichess.org platform and curated by the dataset creators. ### Personal and Sensitive Information The dataset does not contain any personal or sensitive information. ## Considerations for Using the Data ### Social Impact of Dataset The dataset can be used to improve chess engines, develop training tools for players, and conduct research in game theory and artificial intelligence. ### Discussion of Biases The dataset may have biases related to the demographics of Lichess.org users, such as skill level distribution and regional representation. ### Other Known Limitations The dataset is limited to games played on Lichess.org and may not represent the broader chess-playing population. ## Additional Information ### Dataset Curators The dataset was curated by the Lichess.org team and contributors. ### Licensing Information The dataset is available under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. ### Citation Information If you use this dataset, please cite it as follows: ``` @misc{lichess_uci, author = {Davis, Austin L.}, title = {Lichess.org Database in UCI format}, year = {2023}, howpublished = {\url{https://database.lichess.org/}}, } ``` ### Contributions Thanks to [@austinleedavis](https://github.com/austinleedavis) for adding this dataset.--- language: - en size_categories: - 1B<n<10B source_datasets: - database.lichess.org task_categories: - other paperswithcode_id: lichess_uci pretty_name: Lichess.org Database in UCI format tags: - chess - UCI - Lichess dataset_info: - config_name: 201301-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 20700133 num_examples: 121332 download_size: 6335452 dataset_size: 20700133 - config_name: 201301-moves features: - name: site dtype: string - name: transcript dtype: string splits: - name: train num_bytes: 42454117.656856485 num_examples: 120133 download_size: 992204415449 dataset_size: 1636203333850.0193 - config_name: 201302-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 21155456 num_examples: 123961 download_size: 6487839 dataset_size: 21155456 - config_name: 201303-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 27026323 num_examples: 158635 download_size: 8300668 dataset_size: 27026323 - config_name: 201304-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 27075305 num_examples: 157871 download_size: 8357025 dataset_size: 27075305 - config_name: 201305-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 30787801 num_examples: 179550 download_size: 9499827 dataset_size: 30787801 - config_name: 201306-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 38460608 num_examples: 224679 download_size: 12011278 dataset_size: 38460608 - config_name: 201307-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 50175383 num_examples: 293459 download_size: 15746824 dataset_size: 50175383 - config_name: 201308-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 55757812 num_examples: 325525 download_size: 17532132 dataset_size: 55757812 - config_name: 201309-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 55675760 num_examples: 325098 download_size: 17609637 dataset_size: 55675760 - config_name: 201310-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 70482274 num_examples: 411039 download_size: 22045781 dataset_size: 70482274 - config_name: 201312-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: date32 - name: utctime dtype: time64[us] - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 99283116 num_examples: 578262 download_size: 31618717 dataset_size: 99283116 - config_name: 201409-headers features: - name: event dtype: string - name: site dtype: string - name: white dtype: string - name: black dtype: string - name: result dtype: string - name: utcdate dtype: string - name: utctime dtype: string - name: whiteelo dtype: int64 - name: blackelo dtype: int64 - name: whiteratingdiff dtype: float64 - name: blackratingdiff dtype: float64 - name: eco dtype: string - name: opening dtype: string - name: timecontrol dtype: string - name: termination dtype: string splits: - name: train num_bytes: 189380199 num_examples: 1000056 download_size: 55076845 dataset_size: 189380199 description: '"The dataset contains games from the Lichess.org open database converted from PGN format to UCI format. It is divided into two main configurations: `moves` and `headers`. The `moves` configuration includes a UUID called `site` and the UCI moves in a column called `transcript`, while the `headers` configuration includes metadata such as player ELO ratings, game outcome, and dates. The data is subset based on the year and month (yyyymm format)." ' configs: - config_name: 201301-headers data_files: - split: train path: headers/201301/train-* - config_name: 201301-moves data_files: - split: train path: data/201301-* default: true - config_name: 201302-headers data_files: - split: train path: headers/201302/train-* - config_name: 201302-moves data_files: - split: train path: data/201302-* - config_name: 201303-headers data_files: - split: train path: headers/201303/train-* - config_name: 201303-moves data_files: - split: train path: data/201303-* - config_name: 201304-headers data_files: - split: train path: headers/201304/train-* - config_name: 201304-moves data_files: - split: train path: data/201304-* - config_name: 201305-headers data_files: - split: train path: headers/201305/train-* - config_name: 201305-moves data_files: - split: train path: data/201305-* - config_name: 201306-headers data_files: - split: train path: headers/201306/train-* - config_name: 201306-moves data_files: - split: train path: data/201306-* - config_name: 201307-headers data_files: - split: train path: headers/201307/train-* - config_name: 201307-moves data_files: - split: train path: data/201307-* - config_name: 201308-headers data_files: - split: train path: headers/201308/train-* - config_name: 201308-moves data_files: - split: train path: data/201308-* - config_name: 201309-headers data_files: - split: train path: headers/201309/train-* - config_name: 201309-moves data_files: - split: train path: data/201309-* - config_name: 201310-headers data_files: - split: train path: headers/201310/train-* - config_name: 201310-moves data_files: - split: train path: data/201310-* - config_name: 201311-moves data_files: - split: train path: data/201311-* - config_name: 201312-headers data_files: - split: train path: headers/201312/train-* - config_name: 201312-moves data_files: - split: train path: data/201312-* - config_name: 201401-moves data_files: - split: train path: data/201401-* - config_name: 201402-moves data_files: - split: train path: data/201402-* - config_name: 201403-moves data_files: - split: train path: data/201403-* - config_name: 201404-moves data_files: - split: train path: data/201404-* - config_name: 201405-moves data_files: - split: train path: data/201405-* - config_name: 201406-moves data_files: - split: train path: data/201406-* - config_name: 201407-moves data_files: - split: train path: data/201407-* - config_name: 201408-moves data_files: - split: train path: data/201408-* - config_name: 201409-headers data_files: - split: train path: headers/201409/train-* - config_name: 201409-moves data_files: - split: train path: data/201409-* - config_name: 201410-moves data_files: - split: train path: data/201410-* - config_name: 201411-moves data_files: - split: train path: data/201411-* - config_name: 201412-moves data_files: - split: train path: data/201412-* - config_name: 201501-moves data_files: - split: train path: data/201501-* - config_name: 201502-moves data_files: - split: train path: data/201502-* - config_name: 201503-moves data_files: - split: train path: data/201503-* - config_name: 201504-moves data_files: - split: train path: data/201504-* - config_name: 201505-moves data_files: - split: train path: data/201505-* - config_name: 201506-moves data_files: - split: train path: data/201506-* - config_name: 201507-moves data_files: - split: train path: data/201507-* - config_name: 201508-moves data_files: - split: train path: data/201508-* - config_name: 201509-moves data_files: - split: train path: data/201509-* - config_name: 201510-moves data_files: - split: train path: data/201510-* - config_name: 201511-moves data_files: - split: train path: data/201511-* - config_name: 201512-moves data_files: - split: train path: data/201512-* - config_name: 201601-moves data_files: - split: train path: data/201601-* - config_name: 201602-moves data_files: - split: train path: data/201602-* - config_name: 201603-moves data_files: - split: train path: data/201603-* - config_name: 201604-moves data_files: - split: train path: data/201604-* - config_name: 201605-moves data_files: - split: train path: data/201605-* - config_name: 201606-moves data_files: - split: train path: data/201606-* - config_name: 201607-moves data_files: - split: train path: data/201607-* - config_name: 201608-moves data_files: - split: train path: data/201608-* - config_name: 201609-moves data_files: - split: train path: data/201609-* - config_name: 201610-moves data_files: - split: train path: data/201610-* - config_name: 201611-moves data_files: - split: train path: data/201611-* - config_name: 201612-moves data_files: - split: train path: data/201612-* - config_name: 201701-moves data_files: - split: train path: data/201701-* - config_name: 201702-moves data_files: - split: train path: data/201702-* - config_name: 201703-moves data_files: - split: train path: data/201703-* - config_name: 201704-moves data_files: - split: train path: data/201704-* - config_name: 201705-moves data_files: - split: train path: data/201705-* - config_name: 201706-moves data_files: - split: train path: data/201706-* - config_name: 201707-moves data_files: - split: train path: data/201707-* - config_name: 201708-moves data_files: - split: train path: data/201708-* - config_name: 201709-moves data_files: - split: train path: data/201709-* - config_name: 201710-moves data_files: - split: train path: data/201710-* - config_name: 201711-moves data_files: - split: train path: data/201711-* - config_name: 201712-moves data_files: - split: train path: data/201712-* - config_name: 201801-moves data_files: - split: train path: data/201801-* - config_name: 201802-moves data_files: - split: train path: data/201802-* - config_name: 201803-moves data_files: - split: train path: data/201803-* - config_name: 201804-moves data_files: - split: train path: data/201804-* - config_name: 201805-moves data_files: - split: train path: data/201805-* - config_name: 201806-moves data_files: - split: train path: data/201806-* - config_name: 201807-moves data_files: - split: train path: data/201807-* - config_name: 201808-moves data_files: - split: train path: data/201808-* - config_name: 201809-moves data_files: - split: train path: data/201809-* - config_name: 201810-moves data_files: - split: train path: data/201810-* - config_name: 201811-moves data_files: - split: train path: data/201811-* - config_name: 201812-moves data_files: - split: train path: data/201812-* - config_name: 201901-moves data_files: - split: train path: data/201901-* - config_name: 201902-moves data_files: - split: train path: data/201902-* - config_name: 201903-moves data_files: - split: train path: data/201903-* - config_name: 201904-moves data_files: - split: train path: data/201904-* - config_name: 201905-moves data_files: - split: train path: data/201905-* - config_name: 201906-moves data_files: - split: train path: data/201906-* - config_name: 201907-moves data_files: - split: train path: data/201907-* - config_name: 201908-moves data_files: - split: train path: data/201908-* - config_name: 201909-moves data_files: - split: train path: data/201909-* - config_name: 201910-moves data_files: - split: train path: data/201910-* - config_name: 201911-moves data_files: - split: train path: data/201911-* - config_name: 201912-moves data_files: - split: train path: data/201912-* - config_name: 202001-moves data_files: - split: train path: data/202001-* - config_name: 202002-moves data_files: - split: train path: data/202002-* - config_name: 202003-moves data_files: - split: train path: data/202003-* - config_name: 202004-moves data_files: - split: train path: data/202004-* - config_name: 202005-moves data_files: - split: train path: data/202005-* - config_name: 202006-moves data_files: - split: train path: data/202006-* - config_name: 202007-moves data_files: - split: train path: data/202007-* - config_name: 202008-moves data_files: - split: train path: data/202008-* - config_name: 202009-moves data_files: - split: train path: data/202009-* - config_name: 202010-moves data_files: - split: train path: data/202010-* - config_name: 202011-moves data_files: - split: train path: data/202011-* - config_name: 202012-moves data_files: - split: train path: data/202012-* - config_name: 202101-moves data_files: - split: train path: data/202101-* - config_name: 202102-moves data_files: - split: train path: data/202102-* - config_name: 202103-moves data_files: - split: train path: data/202103-* - config_name: 202104-moves data_files: - split: train path: data/202104-* - config_name: 202105-moves data_files: - split: train path: data/202105-* - config_name: 202106-moves data_files: - split: train path: data/202106-* - config_name: 202107-moves data_files: - split: train path: data/202107-* - config_name: 202108-moves data_files: - split: train path: data/202108-* - config_name: 202109-moves data_files: - split: train path: data/202109-* - config_name: 202110-moves data_files: - split: train path: data/202110-* - config_name: 202111-moves data_files: - split: train path: data/202111-* - config_name: 202112-moves data_files: - split: train path: data/202112-* - config_name: 202201-moves data_files: - split: train path: data/202201-* - config_name: 202202-moves data_files: - split: train path: data/202202-* - config_name: 202203-moves data_files: - split: train path: data/202203-* - config_name: 202204-moves data_files: - split: train path: data/202204-* - config_name: 202205-moves data_files: - split: train path: data/202205-* - config_name: 202206-moves data_files: - split: train path: data/202206-* - config_name: 202207-moves data_files: - split: train path: data/202207-* - config_name: 202208-moves data_files: - split: train path: data/202208-* - config_name: 202209-moves data_files: - split: train path: data/202209-* - config_name: 202210-moves data_files: - split: train path: data/202210-* - config_name: 202211-moves data_files: - split: train path: data/202211-* - config_name: 202212-moves data_files: - split: train path: data/202212-* - config_name: 202301-moves data_files: - split: train path: data/202301-* - config_name: 202302-moves data_files: - split: train path: data/202302-* - config_name: 202303-moves data_files: - split: train path: data/202303-* - config_name: 202304-moves data_files: - split: train path: data/202304-* - config_name: 202305-moves data_files: - split: train path: data/202305-* - config_name: 202306-moves data_files: - split: train path: data/202306-* - config_name: 202307-moves data_files: - split: train path: data/202307-* - config_name: 202308-moves data_files: - split: train path: data/202308-* - config_name: 202309-moves data_files: - split: train path: data/202309-* - config_name: 202310-moves data_files: - split: train path: data/202310-* - config_name: 202311-moves data_files: - split: train path: data/202311-* - config_name: 202312-moves data_files: - split: train path: data/202312-* - config_name: 202401-moves data_files: - split: train path: data/202401-* - config_name: 202402-moves data_files: - split: train path: data/202402-* example: moves: site: xxxxxxx transcript: e2e4 e7e5 g1f3 b8c6 headers: event: Rated Blitz game site: xxxxxxx white: player1 black: player2 result: 1-0 utcdate: '2023-05-21' utctime: '13:45:00' whiteelo: 1500 blackelo: 1400 whiteratingdiff: 10 blackratingdiff: -10 eco: C50 opening: Italian Game timecontrol: 300+0 termination: Normal --- # Dataset Card for Lichess.org Database in UCI format ## Table of Contents - [Table of Contents](#table-of-contents) - [Dataset Description](#dataset-description) - [Dataset Summary](#dataset-summary) - [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards) - [Dataset Structure](#dataset-structure) - [Data Instances](#data-instances) - [Data Fields](#data-fields) - [Data Splits](#data-splits) - [Dataset Creation](#dataset-creation) - [Curation Rationale](#curation-rationale) - [Source Data](#source-data) - [Annotations](#annotations) - [Personal and Sensitive Information](#personal-and-sensitive-information) - [Considerations for Using the Data](#considerations-for-using-the-data) - [Social Impact of Dataset](#social-impact-of-dataset) - [Discussion of Biases](#discussion-of-biases) - [Other Known Limitations](#other-known-limitations) - [Additional Information](#additional-information) - [Dataset Curators](#dataset-curators) - [Licensing Information](#licensing-information) - [Citation Information](#citation-information) - [Contributions](#contributions) ## Dataset Description <!-- - **Homepage:** [Lichess.org Database](https://database.lichess.org/) - **Repository:** [GitHub Repository](https://github.com/lichess-org/database) - **Paper:** N/A - **Leaderboard:** N/A - **Point of Contact:** [Contact Lichess](https://lichess.org/contact) --> ### Dataset Summary The Lichess.org database has been converted to UCI format, making it easier to analyze and interpret chess games. The `moves` configuration captures the sequence of moves using UCI notation, and the `headers` configuration provides comprehensive metadata for each game, enabling detailed statistical and strategic analysis. The data is subset based on the year and month (yyyymm format) the games took place. ### Supported Tasks and Leaderboards This dataset supports tasks related to chess game analysis, including move prediction, game outcome prediction, performance analysis, and opening strategy evaluation. There are no formal leaderboards associated with this dataset. ## Dataset Structure ### Data Instances An example from the `moves` configuration: ```json { "site": "abcd1234", "transcript": "e2e4 e7e5 g1f3 b8c6" } ``` An example from the `headers` configuration: ```json { "event": "Rated Blitz game", "site": "abcd1234", "white": "player1", "black": "player2", "result": "1-0", "utcdate": "2023-05-21", "utctime": "13:45:00", "whiteelo": 1500, "blackelo": 1400, "whiteratingdiff": 10, "blackratingdiff": -10, "eco": "C50", "opening": "Italian Game", "timecontrol": "300+0", "termination": "Normal" } ``` ### Data Fields #### Moves Configuration: - `site`: string, unique identifier for the game. Replays can be viewed by navigating to `https://lichess.org/<site>` - `transcript`: string, sequence of moves in UCI format. #### Headers Configuration: - `event`: string, type of event. - `site`: string, unique identifier for the game. - `white`: string, white player. - `black`: string, black player. - `result`: string, game result. - `utcdate`: date32, date of the game. - `utctime`: time64[us], time of the game. - `whiteelo`: int64, ELO rating of the white player. - `blackelo`: int64, ELO rating of the black player. - `whiteratingdiff`: float64, rating change for the white player. - `blackratingdiff`: float64, rating change for the black player. - `eco`: string, ECO code of the opening. - `opening`: string, name of the opening. - `timecontrol`: string, time control format. - `termination`: string, reason for game termination. ### Data Splits The dataset is divided into monthly splits based on the year and month (yyyymm format). Each split contains both `moves` and `headers` configurations. ## Dataset Creation ### Curation Rationale The dataset was curated to facilitate research and analysis that use chess games, providing both move sequences and comprehensive metadata. ### Source Data #### Initial Data Collection and Normalization The data was collected from the Lichess.org open database, converted from PGN format to UCI format, and organized into `moves` and `headers` configurations. #### Who are the source data producers? The source data comes from games played on Lichess.org, an online platform where users from around the world play chess. This database does not distinguish between human-and bot-played games. However, it's reasonable to assume games played before April 2018 were overwhelmingly played by human players since Lichess.org released its [bot api](https://github.com/lichess-org/api) on April 1st, 2018. ### Annotations #### Annotation process The annotations include metadata such as player ELO ratings, game outcomes, and dates, which were extracted from the original PGN files and normalized into a structured format. #### Who are the annotators? The annotations were generated by the Lichess.org platform and curated by the dataset creators. ### Personal and Sensitive Information The dataset does not contain any personal or sensitive information. ## Considerations for Using the Data ### Social Impact of Dataset The dataset can be used to improve chess engines, develop training tools for players, and conduct research in game theory and artificial intelligence. ### Discussion of Biases The dataset may have biases related to the demographics of Lichess.org users, such as skill level distribution and regional representation. ### Other Known Limitations The dataset is limited to games played on Lichess.org and may not represent the broader chess-playing population. ## Additional Information ### Dataset Curators The dataset was curated by the Lichess.org team and contributors. ### Licensing Information The dataset is available under the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. ### Citation Information If you use this dataset, please cite it as follows: ``` @misc{lichess_uci, author = {Davis, Austin L.}, title = {Lichess.org Database in UCI format}, year = {2023}, howpublished = {\url{https://database.lichess.org/}}, } ``` ### Contributions Thanks to [@austinleedavis](https://github.com/austinleedavis) for adding this dataset.