Difference between revisions of "Scorpio Bitbases"

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* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75400&start=22 Re: Hacking around CFish NNUE] by [[Daniel Shawul]], [[CCC]], October 15, 2020 » [[NNUE]]
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75400&start=22 Re: Hacking around CFish NNUE] by [[Daniel Shawul]], [[CCC]], October 15, 2020 » [[NNUE]]
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75415&start=3 Re: How to scale stockfish NNUE score?] by [[Daniel Shawul]], [[CCC]], October 17, 2020 » [[Stockfish NNUE]]
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75415&start=3 Re: How to scale stockfish NNUE score?] by [[Daniel Shawul]], [[CCC]], October 17, 2020 » [[Stockfish NNUE]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75803 EGBB (endgame bitbases) questions ...]  by Frank Quisinsky, [[CCC]], November 15, 2020
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* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75803 EGBB (endgame bitbases) questions ...]  by [[Frank Quisinsky]], [[CCC]], November 15, 2020
  
 
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'''[[Endgame Tablebases|Up one level]]'''
 
'''[[Endgame Tablebases|Up one level]]'''

Revision as of 08:31, 16 November 2020

Home * Knowledge * Endgame Tablebases * Scorpio Bitbases

Scorpio Bitbases,
are compact endgame bitbases created by Daniel Shawul with WDL information of up to 5-men, well suited to probe inside the search as applied in Daniel's engine Scorpio. The 5-men WDL holds in 200 MB. In order to make progress in won egtb-positions near the root, various evaluation heuristics are necessary to modify winning scores accordantly, considering material, ply-distance to the root, pawn closeness to promotion, distance of pieces to the opponent king, etc. [2] .

Open Source

Scorpio Bitbases are open source, since October 2013 distributed under the BSD license [3] . Under Windows, probing is encapsulated via a Dynamic-link library, which already provides a heuristic score instead of pure WDL information in order to make progress at the root without the need to probe huge DTC/DTM tablebases. As of January 2014, Daniel finished the 6-men Scorpio Bitbases, available from Joshua Shriver's torrent site [4] [5].

See also

Forum Posts

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2010 ...

2013

2014 ...

2020 ...

External Links

References

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