---
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
- config_name: 201612-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: 1848428060
    num_examples: 9433412
  download_size: 594613034
  dataset_size: 1848428060
- config_name: 201701-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: 2091792709
    num_examples: 10680708
  download_size: 673940103
  dataset_size: 2091792709
- config_name: 201702-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: 1986836916
    num_examples: 10194939
  download_size: 644102066
  dataset_size: 1986836916
- config_name: 201703-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: 2206844470
    num_examples: 11346745
  download_size: 716613290
  dataset_size: 2206844470
- config_name: 201704-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: 2220211470
    num_examples: 11348506
  download_size: 715041187
  dataset_size: 2220211470
- config_name: 201705-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: 2286069105
    num_examples: 11693919
  download_size: 737987215
  dataset_size: 2286069105
- config_name: 201706-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: 2252584917
    num_examples: 11512600
  download_size: 727578404
  dataset_size: 2252584917
- config_name: 201707-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: 2365737778
    num_examples: 12080314
  download_size: 764480343
  dataset_size: 2365737778
- config_name: 201708-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: 2439444576
    num_examples: 12458761
  download_size: 788468070
  dataset_size: 2439444576
- config_name: 201709-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: 2455202032
    num_examples: 12564109
  download_size: 793997640
  dataset_size: 2455202032
- config_name: 201710-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: 2674828433
    num_examples: 13703878
  download_size: 866679146
  dataset_size: 2674828433
- config_name: 201711-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: 2786778547
    num_examples: 14306375
  download_size: 905852052
  dataset_size: 2786778547
- config_name: 201712-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: 3166977415
    num_examples: 16232215
  download_size: 1019974949
  dataset_size: 3166977415
- config_name: 201801-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: 3499471617
    num_examples: 17945784
  download_size: 1127777632
  dataset_size: 3499471617
- config_name: 201802-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: 3381461970
    num_examples: 17383410
  download_size: 1091925690
  dataset_size: 3381461970
- config_name: 201803-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: 3895131292
    num_examples: 20036271
  download_size: 1262596715
  dataset_size: 3895131292
- config_name: 201804-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: 3866905547
    num_examples: 19881929
  download_size: 1253296149
  dataset_size: 3866905547
- config_name: 201805-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: 4156274625
    num_examples: 21442600
  download_size: 1351210003
  dataset_size: 4156274625
- config_name: 201806-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: 3932252314
    num_examples: 20273737
  download_size: 1277357965
  dataset_size: 3932252314
- config_name: 201807-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: int64
  - name: blackratingdiff
    dtype: int64
  - name: eco
    dtype: string
  - name: opening
    dtype: string
  - name: timecontrol
    dtype: string
  - name: termination
    dtype: string
  splits:
  - name: train
    num_bytes: 4083177565
    num_examples: 21070917
  download_size: 1326361879
  dataset_size: 4083177565
- config_name: 201808-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: 4383849023
    num_examples: 22635642
  download_size: 1427388996
  dataset_size: 4383849023
- config_name: 201809-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: 4442832680
    num_examples: 22971939
  download_size: 1447328638
  dataset_size: 4442832680
- config_name: 201810-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: 4786289731
    num_examples: 24784600
  download_size: 1560894354
  dataset_size: 4786289731
- config_name: 201811-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: 5041352140
    num_examples: 26136657
  download_size: 1648180987
  dataset_size: 5041352140
- config_name: 201812-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: 6010737817
    num_examples: 31179146
  download_size: 1965121640
  dataset_size: 6010737817
- config_name: 201902-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: 5967271799
    num_examples: 31023718
  download_size: 1951411504
  dataset_size: 5967271799
- config_name: 201903-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: 6702633385
    num_examples: 34869171
  download_size: 2192889777
  dataset_size: 6702633385
- config_name: 201904-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: 6449604455
    num_examples: 33565536
  download_size: 2110978321
  dataset_size: 6449604455
- config_name: 201906-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: 6520743650
    num_examples: 33935786
  download_size: 2135392098
  dataset_size: 6520743650
- config_name: 202401-combined
  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
  - name: Transcript
    dtype: string
  splits:
  - name: train
    num_bytes: 51071846006
    num_examples: 98994760
  download_size: 25164879544
  dataset_size: 51071846006
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-headers
  data_files:
  - split: train
    path: headers/201612/train-*
- config_name: 201612-moves
  data_files:
  - split: train
    path: data/201612-*
- config_name: 201701-headers
  data_files:
  - split: train
    path: headers/201701/train-*
- config_name: 201701-moves
  data_files:
  - split: train
    path: data/201701-*
- config_name: 201702-headers
  data_files:
  - split: train
    path: headers/201702/train-*
- config_name: 201702-moves
  data_files:
  - split: train
    path: data/201702-*
- config_name: 201703-headers
  data_files:
  - split: train
    path: headers/201703/train-*
- config_name: 201703-moves
  data_files:
  - split: train
    path: data/201703-*
- config_name: 201704-headers
  data_files:
  - split: train
    path: headers/201704/train-*
- config_name: 201704-moves
  data_files:
  - split: train
    path: data/201704-*
- config_name: 201705-headers
  data_files:
  - split: train
    path: headers/201705/train-*
- config_name: 201705-moves
  data_files:
  - split: train
    path: data/201705-*
- config_name: 201706-headers
  data_files:
  - split: train
    path: headers/201706/train-*
- config_name: 201706-moves
  data_files:
  - split: train
    path: data/201706-*
- config_name: 201707-headers
  data_files:
  - split: train
    path: headers/201707/train-*
- config_name: 201707-moves
  data_files:
  - split: train
    path: data/201707-*
- config_name: 201708-headers
  data_files:
  - split: train
    path: headers/201708/train-*
- config_name: 201708-moves
  data_files:
  - split: train
    path: data/201708-*
- config_name: 201709-headers
  data_files:
  - split: train
    path: headers/201709/train-*
- config_name: 201709-moves
  data_files:
  - split: train
    path: data/201709-*
- config_name: 201710-headers
  data_files:
  - split: train
    path: headers/201710/train-*
- config_name: 201710-moves
  data_files:
  - split: train
    path: data/201710-*
- config_name: 201711-headers
  data_files:
  - split: train
    path: headers/201711/train-*
- config_name: 201711-moves
  data_files:
  - split: train
    path: data/201711-*
- config_name: 201712-headers
  data_files:
  - split: train
    path: headers/201712/train-*
- config_name: 201712-moves
  data_files:
  - split: train
    path: data/201712-*
- config_name: 201801-headers
  data_files:
  - split: train
    path: headers/201801/train-*
- config_name: 201801-moves
  data_files:
  - split: train
    path: data/201801-*
- config_name: 201802-headers
  data_files:
  - split: train
    path: headers/201802/train-*
- config_name: 201802-moves
  data_files:
  - split: train
    path: data/201802-*
- config_name: 201803-headers
  data_files:
  - split: train
    path: headers/201803/train-*
- config_name: 201803-moves
  data_files:
  - split: train
    path: data/201803-*
- config_name: 201804-headers
  data_files:
  - split: train
    path: headers/201804/train-*
- config_name: 201804-moves
  data_files:
  - split: train
    path: data/201804-*
- config_name: 201805-headers
  data_files:
  - split: train
    path: headers/201805/train-*
- config_name: 201805-moves
  data_files:
  - split: train
    path: data/201805-*
- config_name: 201806-headers
  data_files:
  - split: train
    path: headers/201806/train-*
- config_name: 201806-moves
  data_files:
  - split: train
    path: data/201806-*
- config_name: 201807-headers
  data_files:
  - split: train
    path: headers/201807/train-*
- config_name: 201807-moves
  data_files:
  - split: train
    path: data/201807-*
- config_name: 201808-headers
  data_files:
  - split: train
    path: headers/201808/train-*
- config_name: 201808-moves
  data_files:
  - split: train
    path: data/201808-*
- config_name: 201809-headers
  data_files:
  - split: train
    path: headers/201809/train-*
- config_name: 201809-moves
  data_files:
  - split: train
    path: data/201809-*
- config_name: 201810-headers
  data_files:
  - split: train
    path: headers/201810/train-*
- config_name: 201810-moves
  data_files:
  - split: train
    path: data/201810-*
- config_name: 201811-headers
  data_files:
  - split: train
    path: headers/201811/train-*
- config_name: 201811-moves
  data_files:
  - split: train
    path: data/201811-*
- config_name: 201812-headers
  data_files:
  - split: train
    path: headers/201812/train-*
- 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-headers
  data_files:
  - split: train
    path: headers/201902/train-*
- config_name: 201902-moves
  data_files:
  - split: train
    path: data/201902-*
- config_name: 201903-headers
  data_files:
  - split: train
    path: headers/201903/train-*
- config_name: 201903-moves
  data_files:
  - split: train
    path: data/201903-*
- config_name: 201904-headers
  data_files:
  - split: train
    path: headers/201904/train-*
- 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-headers
  data_files:
  - split: train
    path: headers/201906/train-*
- 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-combined
  data_files:
  - split: train
    path: combined/202401/train-*
- 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.