SPCC: Testrun of Stockfish 190814 finished

[pohl4711]

Testrun of Stockfish 190814 finished.

https://www.sp-cc.de


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[Leo]

Testrun of Stockfish 190814 finished.

https://www.sp-cc.de


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Stefan, what is Brainfish 2 again? Is it LCO learning and then plugging the results into stockfish?. Do you plug the resulting book into Stockfish and its still an AB engine?

[pohl4711]

BrainFish-2 is Stockfish, using both Cerebellums (Leela-calculated Cerebellum first. When this one "runs out of moves" in the board position, the Stockfish-Cerebellum is consulted. If this one "runs out of moves" in the board position, too, then Brainfish starts thinking, which means, Stockfish starts playing).

From the website of Thomas Zipproth (written before the Leela-Cerebellum existed):

Brainfish is a standard Stockfish chess engine extended by a general book format, which is capable of handling a reduced part of Cerebellum, which is an innovative chess opening and playing book. In BrainFish the Book moves are only used in engine games, not in analysis mode.

All moves in the distributed book Cerebellum_light.bin generated by Cerebellum where calculated by using Stockfish as analysis engine, without using statistics. Then those moves where again recalculated by the Cerebellum Library using a graph algorithm which makes all scores in the library consistent. Consistent scores means for example when the starting position has a score of 0.2 and a best move is 1.e4, the position after 1.e4 must have the score -0.2. Additional some others properties are found like the best main line for a position and possible Transitions.

That means when Brainfish is playing, it plays like Stockfish regarding the evaluation, only a much higher skill level. The lines in Cerebellum_light.bin are in some cases reaching the late middlegame and endgame. Pondering is only active after the last move out of the book has been played

BrainFish is licensed under the GPL, which includes the access code to the general book format.

[Leo]

Thanks for the information. It sound very powerful.

[Daniel Shawul]

There is now a uci version of Scorpio that you may want to try. Please install again from scratch since there are changes in the ini file.

Regards
Daniel

[pohl4711]

There is now a uci version of Scorpio that you may want to try. Please install again from scratch since there are changes in the ini file.

Regards
Daniel

Awesome! Many Thanx in advance. Will start the testrun tomorrow (today I am very busy). I will report, if all works well one or two day later.

Stefan (SPCC)