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Stockfish Polyglot: Updated July, 23 2020

For Windows only, NO LINUX, ANDROID OR MACOS!

 

Changelog: Matching Stockfish beta having timestamp 1595010524 - Do not overwrite valuable TT data after probcut.

 

Stockfish Polyglot latest downloadStockfish Polyglot latest download

 

Stockfish Polyglot 11 downloadStockfish Polyglot 11 download

 

July, 12 2020: The source code on GitHub has been updated https://github.com/massimilianogoi/Stockfish-Polyglot. I would appreciate if someone is so nice to build the Android version.

 

The new thing on this Stockfish Polyglot is that I've set back the contempt as 24 for experimental purposes. It seems to behave very well. Because of the active contempt I preferred to remove it from the analysis engines because this parameter produces fluctuations in the evaluations.

Jurek Chess ranked it with the same ELO of his actual top chess engine (Stockfish 20052607, top left of the page): 3307! Link.

 

Stockfish Polyglot is the same Stockfish with the ability to read Polyglot books (.bin format).

This chess engine can read up to four Polyglot books.

New Stockfish Polyglot four books

 

Maximize its performance by getting the Goi book.

 

This distribution is enhanced by the pgo-build option. Stockfish Polyglot automatically detects your maximum number of threads and set it as default value in the UCI settings.

Stockfish Polyglot comes with almost any architecture available, hence also for old 32bit operating systems like Windows XP, old machines, 64bit systems, standard machines, modern machines and power computers. It runs on Windows only this time.

 

web survey

 

04/10/19 poll average vote: 9.21.

 

 

Binaries of the latest version:

Windows:

- Stockfish Polyglot 220720 32bit.exe FOR 32BIT WINDOWS SYSTEMS

- Stockfish Polyglot 220720 32bit_general.exe FOR GENERAL 32BIT WINDOWS SYSTEMS

- Stockfish Polyglot 220720 32bit_general.exe FOR OLD MACHINES HAVING 32BIT WINDOWS S

- Stockfish Polyglot 220720 32bit_ppc-32.exe FOR POWER COMPUTERS HOSTING WINDOWS SYSTEMS 32BIT

- Stockfish Polyglot 220720 x64_BMI2.exe FOR 64BIT WINDOWS SYSTEM AND INTEL PROCESSORS

- Stockfish Polyglot 220720 x64_general.exe FOR GENERAL 64BIT WINDOWS SYSTEMS

- Stockfish Polyglot 220720 x64_modern.exe FOR MODERN MACHINES ON 64BIT WINDOWS SYSTEMS (POPULATION COUNT ALGORYTHM INCLUDED)

- Stockfish Polyglot 220720 x64_ppc.exe FOR POWER COMPUTERS HOSTING WINDOWS SYSTEMS 64BIT (POPULATION COUNT ALGORYTHM INCLUDED)

- Stockfish Polyglot 220720 x64_x64.exe FOR 64BIT WINDOWS SYSTEMS

 

 

Stockfish Polyglot 220720 x64.exe single processor benchmark:

 

 

Stockfish Polyglot 220720 32bit.exe single processor benchmark: