Polyfish 20230807

Change log

Merge with latest Stockfish development branch (last revision: 9832)

Windows Release files (64-bit)

Windows_Polyfish_230807_x86-64-vnni512.zip
Windows_Polyfish_230807_x86-64-vnni256.zip
Windows_Polyfish_230807_x86-64-avx512.zip
Windows_Polyfish_230807_x86-64-bmi2.zip
Windows_Polyfish_230807_x86-64-avx2.zip
Windows_Polyfish_230807_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230807_x86-64-vnni512.zip
Linux_Polyfish_230807_x86-64-vnni256.zip
Linux_Polyfish_230807_x86-64-avx512.zip
Linux_Polyfish_230807_x86-64-bmi2.zip
Linux_Polyfish_230807_x86-64-avx2.zip
Linux_Polyfish_230807_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-c38c3d8d3920.nnue

Polyfish 20230708

Change log

Merge with latest Stockfish development branch (last revision: 9770)

Windows Release files (64-bit)

Windows_Polyfish_230708_x86-64-vnni512.zip
Windows_Polyfish_230708_x86-64-vnni256.zip
Windows_Polyfish_230708_x86-64-avx512.zip
Windows_Polyfish_230708_x86-64-bmi2.zip
Windows_Polyfish_230708_x86-64-avx2.zip
Windows_Polyfish_230708_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230708_x86-64-vnni512.zip
Linux_Polyfish_230708_x86-64-vnni256.zip
Linux_Polyfish_230708_x86-64-avx512.zip
Linux_Polyfish_230708_x86-64-bmi2.zip
Linux_Polyfish_230708_x86-64-avx2.zip
Linux_Polyfish_230708_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-c38c3d8d3920.nnue

Polyfish 20230621

Change log

Merge with latest Stockfish development branch (last revision: 9538)

Windows Release files (64-bit)

Windows_Polyfish_230621_x86-64-vnni512.zip
Windows_Polyfish_230621_x86-64-vnni256.zip
Windows_Polyfish_230621_x86-64-avx512.zip
Windows_Polyfish_230621_x86-64-bmi2.zip
Windows_Polyfish_230621_x86-64-avx2.zip
Windows_Polyfish_230621_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230621_x86-64-vnni512.zip
Linux_Polyfish_230621_x86-64-vnni256.zip
Linux_Polyfish_230621_x86-64-avx512.zip
Linux_Polyfish_230621_x86-64-bmi2.zip
Linux_Polyfish_230621_x86-64-avx2.zip
Linux_Polyfish_230621_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-78bacfcee510.nnue

Polyfish 20230607

Change log

Merge with latest Stockfish development branch (last revision: 9519)

Windows Release files (64-bit)

Windows_Polyfish_230607_x86-64-vnni512.zip
Windows_Polyfish_230607_x86-64-vnni256.zip
Windows_Polyfish_230607_x86-64-avx512.zip
Windows_Polyfish_230607_x86-64-bmi2.zip
Windows_Polyfish_230607_x86-64-avx2.zip
Windows_Polyfish_230607_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230607_x86-64-vnni512.zip
Linux_Polyfish_230607_x86-64-vnni256.zip
Linux_Polyfish_230607_x86-64-avx512.zip
Linux_Polyfish_230607_x86-64-bmi2.zip
Linux_Polyfish_230607_x86-64-avx2.zip
Linux_Polyfish_230607_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-0dd1cebea573.nnue

Polyfish 20230604

Change log

Merge with latest Stockfish development branch (last revision: 9510)

Windows Release files (64-bit)

Windows_Polyfish_230604_x86-64-vnni512.zip
Windows_Polyfish_230604_x86-64-vnni256.zip
Windows_Polyfish_230604_x86-64-avx512.zip
Windows_Polyfish_230604_x86-64-bmi2.zip
Windows_Polyfish_230604_x86-64-avx2.zip
Windows_Polyfish_230604_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230604_x86-64-vnni512.zip
Linux_Polyfish_230604_x86-64-vnni256.zip
Linux_Polyfish_230604_x86-64-avx512.zip
Linux_Polyfish_230604_x86-64-bmi2.zip
Linux_Polyfish_230604_x86-64-avx2.zip
Linux_Polyfish_230604_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-8d69132723e2.nnue

Polyfish 20230510

Change log

• Fixed CTG bug related to en passant move decoding

• Enhanced CTG move selection by ignoring moves with negative weights

Full change log: cdb15f0

UPDATED Read before using CTG books: Note about CTG Books

Windows Release files (64-bit)

Windows_Polyfish_230510_x86-64-vnni512.zip
Windows_Polyfish_230510_x86-64-vnni256.zip
Windows_Polyfish_230510_x86-64-avx512.zip
Windows_Polyfish_230510_x86-64-bmi2.zip
Windows_Polyfish_230510_x86-64-avx2.zip
Windows_Polyfish_230510_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230510_x86-64-vnni512.zip
Linux_Polyfish_230510_x86-64-vnni256.zip
Linux_Polyfish_230510_x86-64-avx512.zip
Linux_Polyfish_230510_x86-64-bmi2.zip
Linux_Polyfish_230510_x86-64-avx2.zip
Linux_Polyfish_230510_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-e1fb1ade4432.nnue

Polyfish 20230509

Change log

• Fixed CTG bug that causes the engine not to read castling moves

• Fix CTG bug that causes the engine not to decode the position properly if the White king position was on files 1-4 and Black can still castle in either direction (there are other factors too that contributed to this bug)

UPDATED Read before using CTG books: Note about CTG Books
Full change log: 5979f2f

Windows Release files (64-bit)

Windows_Polyfish_230509_x86-64-vnni512.zip
Windows_Polyfish_230509_x86-64-vnni256.zip
Windows_Polyfish_230509_x86-64-avx512.zip
Windows_Polyfish_230509_x86-64-bmi2.zip
Windows_Polyfish_230509_x86-64-avx2.zip
Windows_Polyfish_230509_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230509_x86-64-vnni512.zip
Linux_Polyfish_230509_x86-64-vnni256.zip
Linux_Polyfish_230509_x86-64-avx512.zip
Linux_Polyfish_230509_x86-64-bmi2.zip
Linux_Polyfish_230509_x86-64-avx2.zip
Linux_Polyfish_230509_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-e1fb1ade4432.nnue

Polyfish 20230508

Change log

• Enhance CTG move ordering based on new findings from sample books submitted by Marco Zerbinati (Thank you)

• Merge with latest Stockfish development branch (last revision: 9494)

Read before using CTG books: Note about CTG Books
Full change log: dbebf1f

Windows Release files (64-bit)

Windows_Polyfish_230508_x86-64-vnni512.zip
Windows_Polyfish_230508_x86-64-vnni256.zip
Windows_Polyfish_230508_x86-64-avx512.zip
Windows_Polyfish_230508_x86-64-bmi2.zip
Windows_Polyfish_230508_x86-64-avx2.zip
Windows_Polyfish_230508_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230508_x86-64-vnni512.zip
Linux_Polyfish_230508_x86-64-vnni256.zip
Linux_Polyfish_230508_x86-64-avx512.zip
Linux_Polyfish_230508_x86-64-bmi2.zip
Linux_Polyfish_230508_x86-64-avx2.zip
Linux_Polyfish_230508_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-e1fb1ade4432.nnue

Polyfish 20230506

Change log

• Added option to include only green book moves for CTG books
• Better CTG book move weight calculation logic. Hopefully this logic is close to Chessbase/Fritz move selection logic
• Merge with latest Stockfish development branch (Revision 9491)

Read before using CTG books: Note about CTG Books
Full change log: 9322b68

Windows Release files (64-bit)

Windows_Polyfish_230506_x86-64-vnni512.zip
Windows_Polyfish_230506_x86-64-vnni256.zip
Windows_Polyfish_230506_x86-64-avx512.zip
Windows_Polyfish_230506_x86-64-bmi2.zip
Windows_Polyfish_230506_x86-64-avx2.zip
Windows_Polyfish_230506_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230506_x86-64-vnni512.zip
Linux_Polyfish_230506_x86-64-vnni256.zip
Linux_Polyfish_230506_x86-64-avx512.zip
Linux_Polyfish_230506_x86-64-bmi2.zip
Linux_Polyfish_230506_x86-64-avx2.zip
Linux_Polyfish_230506_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-e1fb1ade4432.nnue

Polyfish 20230426

Change log

• Replaced the four book options with just two that can be configured to either a CTG or BIN book (engine will detect the book format). The books are probed in the order they are configured in.
• Replaced the previous "poly" and "ctg" commands with one command called "book". This command will display available book moves for the configured books of any type.
• Merge with latest Stockfish development branch (Revision 9487)

Read before using CTG books: Note about CTG Books
Full change log: 4a17edd

Windows Release files (64-bit)

Windows_Polyfish_230426_x86-64-vnni512.zip
Windows_Polyfish_230426_x86-64-vnni256.zip
Windows_Polyfish_230426_x86-64-avx512.zip
Windows_Polyfish_230426_x86-64-bmi2.zip
Windows_Polyfish_230426_x86-64-avx2.zip
Windows_Polyfish_230426_x86-64-sse41-popcnt.zip

Linux Release files (64-bit)

Linux_Polyfish_230426_x86-64-vnni512.zip
Linux_Polyfish_230426_x86-64-vnni256.zip
Linux_Polyfish_230426_x86-64-avx512.zip
Linux_Polyfish_230426_x86-64-bmi2.zip
Linux_Polyfish_230426_x86-64-avx2.zip
Linux_Polyfish_230426_x86-64-sse41-popcnt.zip

Release binary files are embedded with nn-e1fb1ade4432.nnue