Swordfish 14.7, Blue Marlin 14.7

Discussion about chess-playing software (engines, hosts, opening books, platforms, etc...)
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dorsz
Posts: 280
Joined: Mon Aug 30, 2021 8:43 pm

Swordfish 14.7, Blue Marlin 14.7

Post by dorsz » Mon Jan 03, 2022 9:51 am

Swordfish and Blue Marlin are engines based on Stockfish and ideas used in Bluefish by Eelco de Groot. The main purpose of these engines is to provide interesting and effective chess games. Recent versions are quite strong and can be useful for analyzing sharp positions where regular Stockfish can overlook some tactics.

Swordfish has a reasonable balance between strength and tactical abilities. It still has solid style of playing and achieves good results in test suites.
Blue Marlin is more focused on king attack and sacrifices. It is a bit weaker than Swordfish, but provides very sharp and attractive games.

Each archive contains both engines:
x64 AVX2 - https://www.mediafire.com/file/g9ohlp10 ... 2.zip/file
x64 BMI2 - https://www.mediafire.com/file/8bok92uy ... 2.zip/file
x64 modern - https://www.mediafire.com/file/fmzsvfo2 ... n.zip/file
x64 base - https://www.mediafire.com/file/88wmapmw ... e.zip/file
sources - https://www.mediafire.com/file/lm8z4gmp ... s.zip/file

User avatar
dorsz
Posts: 280
Joined: Mon Aug 30, 2021 8:43 pm

Re: Swordfish 14.7, Blue Marlin 14.7

Post by dorsz » Mon Jan 03, 2022 9:52 am

Note that old net in Blue Marlin 14.7 is used intentionally to make it as tactical as possible. In my testing it solves the most positions with extremely low average solving time. These nets have also been tested, none was better:
nn-8aa3f5be4dda.nnue
nn-ac07bd334b62.nnue
nn-4401e826ebcc.nnue
nn-00e01971ef99.nnue
nn-63376713ba63.nnue
nn-cdf1785602d6.nnue
nn-4f56ecfca5b7.nnue
nn-3678835b1d3d.nnue

AlexChess
Posts: 504
Joined: Sat Jan 08, 2022 9:25 am
Real Name: Alex Morales

Re: Swordfish 14.7, Blue Marlin 14.7

Post by AlexChess » Sat Jan 08, 2022 9:29 am

dorsz wrote:
Mon Jan 03, 2022 9:51 am
Swordfish and Blue Marlin are engines based on Stockfish and ideas used in Bluefish by Eelco de Groot. The main purpose of these engines is to provide interesting and effective chess games. Recent versions are quite strong and can be useful for analyzing sharp positions where regular Stockfish can overlook some tactics.

Swordfish has a reasonable balance between strength and tactical abilities. It still has solid style of playing and achieves good results in test suites.
Blue Marlin is more focused on king attack and sacrifices. It is a bit weaker than Swordfish, but provides very sharp and attractive games.

Each archive contains both engines:
x64 AVX2 - https://www.mediafire.com/file/g9ohlp10 ... 2.zip/file
x64 BMI2 - https://www.mediafire.com/file/8bok92uy ... 2.zip/file
x64 modern - https://www.mediafire.com/file/fmzsvfo2 ... n.zip/file
x64 base - https://www.mediafire.com/file/88wmapmw ... e.zip/file
sources - https://www.mediafire.com/file/lm8z4gmp ... s.zip/file
Both are a good improvement over previous 14.5 and 14.6, on my tests. Thank you!

AlexChess
Posts: 504
Joined: Sat Jan 08, 2022 9:25 am
Real Name: Alex Morales

Re: Swordfish 14.7, Blue Marlin 14.7

Post by AlexChess » Sat Jan 08, 2022 10:37 am

AlexChess wrote:
Sat Jan 08, 2022 9:29 am
dorsz wrote:
Mon Jan 03, 2022 9:51 am
Swordfish and Blue Marlin are engines based on Stockfish and ideas used in Bluefish by Eelco de Groot. The main purpose of these engines is to provide interesting and effective chess games. Recent versions are quite strong and can be useful for analyzing sharp positions where regular Stockfish can overlook some tactics.

Swordfish has a reasonable balance between strength and tactical abilities. It still has solid style of playing and achieves good results in test suites.
Blue Marlin is more focused on king attack and sacrifices. It is a bit weaker than Swordfish, but provides very sharp and attractive games.

Each archive contains both engines:
x64 AVX2 - https://www.mediafire.com/file/g9ohlp10 ... 2.zip/file
x64 BMI2 - https://www.mediafire.com/file/8bok92uy ... 2.zip/file
x64 modern - https://www.mediafire.com/file/fmzsvfo2 ... n.zip/file
x64 base - https://www.mediafire.com/file/88wmapmw ... e.zip/file
sources - https://www.mediafire.com/file/lm8z4gmp ... s.zip/file
Both are a good improvement over previous 14.5 and 14.6, on my tests. Thank you!