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 |
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 |
Note that knowledge.bin also can be used with