SCID with Knowledge Base

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SCID

788 Mb

94.043.296

positions

Last Update

April 14, 2021

Knowledge Base 1.0 is the work of months carefully building a quality Polyglot database with analyzed positions by top engines, mainly by Stockfish 12 and Stockfish 13 covering about 95% of the general opening theory. The estimated total computer time roughly is about 8 years 24/7 single cpu time limited to 5 real months 24/7 due to the use 2 powerful PC's with many cores. The average quality of of the 94 million analyzed positions is around ~3300 elo. The database contains a wealth of information for opening study and for correspondence players. Knowledge Base is made available for SCID for easy browsing through the Polyglot database by clicking on the moves.


Operation - unzip the archive, go to the bin folder and double click scid.exe. _____________________________________________________________________________________________________

A big thanks goes to Fulvio who implemented the needed changes to SCID and his permission to publish SCID on the REBEL website.


Author note about this development version - some things may be incomplete or not work as expected.

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Selected Openings


From the main Polyglot database (knowledge.bin) we extracted a number of popular openings analyzed with Stockfish 13 which you can use separately.

Name

Positions

Games Used

Moves

Date

1.504.434

37.670

1.d4 f5

2021-03-09

5.627.588

230.026

1.e4 c5

2021-03-25

1.616.067

72.814

1.e4 e5 2.Nf3 Nc6 3.Bb5

2021-03-30

1.949.330

85.274

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4

2021-04-01

1.681.781

88.836

1.d4 Nf6 2.c4 e6 3.Nf3

2021-04-01

1.570.073

89.040

1.d4 Nf6 2.c4 g6 3. Nc3 Bg7

2021-04-04

3.874.048

209.041

1.d4 d5 2.c4

2021-04-07

1.796.200

96.697

1.e4 c6

2021-04-10

2.924.727

166.824

1.e4 e6

2021-04-14

Specials


We collected the moves of the current top-3 engines (Stockfish, Lc0 and Komodo-Dragon) played on several rating lists, CCRL, FGRL and SPCC.


The advantage is that the analysis is deeper than the average depth we have used to create Knowledge Base, hence we offer them separately.

Engine

Games Used

Positions

Average Depth

26.000

469.634

23.64

43.508

731.598

27.93

191.250

2.579.332

11.10

38.399

690.220

23.50

Misc

Games used

Positions

Content

76.348

4.006.433

240.605

6.990.662

Engine Overview Knowledge Base

Code

Engine

Positions

0

Unknown-Engine

109.053

1

Stockfish 12

33.685.694

2

Komodo Dragon

572.585

3

Houdini 6

101.788

4

Komodo 14

80.938

5

Lc0

2.457.743

6

CCRL elo 3200+ engines

2.625.321

7

Strong Engine

10.856.045

8

TCEC Engine

1.327.721

9

CCC Engine

1.223.746

10

Stockfish 13

41.002.662

Note that knowledge.bin also can be used with

ProDeo Knowledge and PGN Annotator.