metadata
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
- config_name: 201608-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: 1271315552
num_examples: 6483257
download_size: 404092003
dataset_size: 1271315552
- config_name: 201609-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: 1335237302
num_examples: 6813113
download_size: 425117757
dataset_size: 1335237302
- config_name: 201610-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: 1492412025
num_examples: 7599868
download_size: 474751592
dataset_size: 1492412025
- config_name: 201611-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: 1569620327
num_examples: 8021509
download_size: 503256909
dataset_size: 1569620327
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-headers
data_files:
- split: train
path: headers/201608/train-*
- config_name: 201608-moves
data_files:
- split: train
path: data/201608-*
- config_name: 201609-headers
data_files:
- split: train
path: headers/201609/train-*
- config_name: 201609-moves
data_files:
- split: train
path: data/201609-*
- config_name: 201610-headers
data_files:
- split: train
path: headers/201610/train-*
- config_name: 201610-moves
data_files:
- split: train
path: data/201610-*
- config_name: 201611-headers
data_files:
- split: train
path: headers/201611/train-*
- 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
- Dataset Description
- Dataset Structure
- Dataset Creation
- Considerations for Using the Data
- Additional Information
Dataset Description
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:
{
"site": "abcd1234",
"transcript": "e2e4 e7e5 g1f3 b8c6"
}
An example from the headers configuration:
{
"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 tohttps://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 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 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
- Dataset Description
- Dataset Structure
- Dataset Creation
- Considerations for Using the Data
- Additional Information
Dataset Description
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:
{
"site": "abcd1234",
"transcript": "e2e4 e7e5 g1f3 b8c6"
}
An example from the headers configuration:
{
"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 tohttps://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 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 for adding this dataset.