DATA UPDATES

387 Mb

Updates

MillionBase 2.9 - 2.9 million quality chess games in PGN format. The 2 yearly TWIC update, added 350.000 new games from the years 2016 and 2017. Database up to date till January 2018. Next update January 2020.

Purpose of this page


Updates of data files without the need to release a new version.


Manual installation required.

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Selected Lichess games

Lichess offers all games played for download, currently more than 700 million. We made 2 selections. From the 2017-12 till 2019-06 archives we created 2 databases.


1. A human vs human database between players of at least 2200 elo. Games 3.784.887

Human

519 Mb

2. A database with only (quoting the web-site) games that include Stockfish analysis evaluations.

Month

Games

Size

Download

2017-12

984.113

411 Mb

2018-01

1.088.616

452 Mb

2018-02

1.048.521

435 Mb

2018-03

1.185.883

490 Mb

2018-04

1.169.227

483 Mb

2018-05

1.198.755

495 Mb

2018-06

1.090.840

450 Mb

2018-07

1.123.155

465 Mb

2018-08

1.249.779

510 Mb

2018-09

1.150.071

474 Mb

2018-10

1.252.763

517 Mb

2018-11

1.421.087

586 Mb

2018-12

1.763.654

725 Mb

2019-01

1.824.684

750 Mb

2019-02

1.595.372

656 Mb

2019-03

1.775.418

729 Mb

2019-04

1.625.806

669 Mb

2019-05

1.583.024

651 Mb

2019-06

1.496.678

616 Mb

In total 25.6 million annotated Stockfish games.


Say average game length is 60 moves, we get:

25.000.000 x 120 = 3.000.000.000 positions


for NN training


or other purposes.

How it is done

so you can do it yourself


1. Download and install SOMU 1.5


2. Extract Lichess downloads in the PGN folder.


3. Doubleclick SOMU.EXE and press [F8]


4. Select the PGN from the folder.


5. And make the selections of your choice.


6. The result is stored in OUTPUT.PGN



Related hint


Once you have the human database of 3.784.887 games installed you can extract from that database higher elo rated database such as 2300, 2400, 2500 etc. with SOMU 1.5 [F8].