Difference between revisions of "Pedone"

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=Description=  
 
=Description=  
 
Pedone has a compact [[Quad-Bitboards|quad-bitboard]] board representation <ref>[https://sites.google.com/site/pedonechess/programming-articles/quadbitboard Pedone Chess Engine - QuadBitboard]</ref> , suited for a [[Copy-Make|copy-make]] approach, and further applies [[Magic Bitboards|magic bitboards]] for [[Sliding Piece Attacks|sliding piece attacks]] and [[Move Generation|move generation]]. Its search is [[Alpha-Beta|PVS]] with [[Transposition Table|transposition table]], [[Internal Iterative Deepening|IID]] and [[Quiescence Search|quiescence search]] inside an [[Iterative Deepening|iterative deepening]] framework. The [[Evaluation|evaluation]] function was [[Automated Tuning|tuned]] with a similar approach to the [[Texel's Tuning Method]] <ref>[https://sites.google.com/site/pedonechess/programming-articles/evaluation-tuning Pedobe Chess Engine - Evaluation Tuning]</ref> until version 1.0. Some evaluation bonuses of versions 1.3 and 1.4 were tuned with [[Temporal Difference Learning|TD Learning]]. Since '''1.0''', released in December 2014, Pedone performs a [[Parallel Search|parallel search]] using multiple [[Thread|threads]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=54640 Pedone 1.0] by [[Fabio Gobbato]], [[CCC]], December 14, 2014</ref> , with '''1.4''' in April 2016, dubbed [[Lazy SMP]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=59732 Pedone 1.4] by [[Fabio Gobbato]], [[CCC]], April 03, 2016</ref>. The further improved Pedone '''1.6''' released in June 2017 can use up to 128 threads and comes with an executable for [[Android]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64241 New release Pedone 1.6] by [[Fabio Gobbato]], [[CCC]], June 10, 2017</ref>. Since 2018, Pedone '''1.8''' is able to play [[Chess960]].
 
Pedone has a compact [[Quad-Bitboards|quad-bitboard]] board representation <ref>[https://sites.google.com/site/pedonechess/programming-articles/quadbitboard Pedone Chess Engine - QuadBitboard]</ref> , suited for a [[Copy-Make|copy-make]] approach, and further applies [[Magic Bitboards|magic bitboards]] for [[Sliding Piece Attacks|sliding piece attacks]] and [[Move Generation|move generation]]. Its search is [[Alpha-Beta|PVS]] with [[Transposition Table|transposition table]], [[Internal Iterative Deepening|IID]] and [[Quiescence Search|quiescence search]] inside an [[Iterative Deepening|iterative deepening]] framework. The [[Evaluation|evaluation]] function was [[Automated Tuning|tuned]] with a similar approach to the [[Texel's Tuning Method]] <ref>[https://sites.google.com/site/pedonechess/programming-articles/evaluation-tuning Pedobe Chess Engine - Evaluation Tuning]</ref> until version 1.0. Some evaluation bonuses of versions 1.3 and 1.4 were tuned with [[Temporal Difference Learning|TD Learning]]. Since '''1.0''', released in December 2014, Pedone performs a [[Parallel Search|parallel search]] using multiple [[Thread|threads]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=54640 Pedone 1.0] by [[Fabio Gobbato]], [[CCC]], December 14, 2014</ref> , with '''1.4''' in April 2016, dubbed [[Lazy SMP]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=59732 Pedone 1.4] by [[Fabio Gobbato]], [[CCC]], April 03, 2016</ref>. The further improved Pedone '''1.6''' released in June 2017 can use up to 128 threads and comes with an executable for [[Android]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64241 New release Pedone 1.6] by [[Fabio Gobbato]], [[CCC]], June 10, 2017</ref>. Since 2018, Pedone '''1.8''' is able to play [[Chess960]].
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Pedone '''3.0''', released in January 2021, uses a pure [[Neural Networks|neural network]] evaluation <ref> [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76203 New release Pedone 3.0] by [[Fabio Gobbato]], [[CCC]], January 01, 2021
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</ref>.
  
 
=See also=  
 
=See also=  
* [[:Category:Chess Pieces|Chess Pieces]]
+
* [[Pawn (Program)|Pawn]]
 
* [[Pion]]
 
* [[Pion]]
 
* [[QBBEngine]]
 
* [[QBBEngine]]
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* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72704 New release Pedone 2.0] by [[Fabio Gobbato]], [[CCC]], January 01, 2020
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72704 New release Pedone 2.0] by [[Fabio Gobbato]], [[CCC]], January 01, 2020
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74844 New release Pedone 2.1] by [[Fabio Gobbato]], [[CCC]], August 20, 2020
 
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74844 New release Pedone 2.1] by [[Fabio Gobbato]], [[CCC]], August 20, 2020
 +
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=76203 New release Pedone 3.0] by [[Fabio Gobbato]], [[CCC]], January 01, 2021
 +
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=77172 New release Pedone 3.1] by [[Fabio Gobbato]], [[CCC]], April 25, 2021
  
 
=External Links=  
 
=External Links=  
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=References=  
 
=References=  
 
<references />
 
<references />
 
 
'''[[Engines|Up one Level]]'''
 
'''[[Engines|Up one Level]]'''
 
[[Category:Chess Pieces]]
 
[[Category:Chess Pieces]]
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[[Category:UCI]]
 
[[Category:UCI]]
 
[[Category:Android]]
 
[[Category:Android]]
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[[Category:Linux]]
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[[Category:Windows]]
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[[Category:PC]]
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[[Category:X64]]
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[[Category:ARM]]
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[[Category:NN]]

Revision as of 12:03, 25 April 2021

Home * Engines * Pedone

Pedone bianco [1]

Pedone,
a UCI compliant chess engine by Fabio Gobbato written in C. The download from its site includes Windows 32-bit and 64-bit, and Linux 32-bit and 64-bit executables [2] . During its early development stages, Pedone had its over the board tournament debut at the IGT 2013 with 1½/4. It progressed rapidly, and already won the IGT 2014 with 6/7, and the IGT 2015 with 7/6!

Description

Pedone has a compact quad-bitboard board representation [3] , suited for a copy-make approach, and further applies magic bitboards for sliding piece attacks and move generation. Its search is PVS with transposition table, IID and quiescence search inside an iterative deepening framework. The evaluation function was tuned with a similar approach to the Texel's Tuning Method [4] until version 1.0. Some evaluation bonuses of versions 1.3 and 1.4 were tuned with TD Learning. Since 1.0, released in December 2014, Pedone performs a parallel search using multiple threads [5] , with 1.4 in April 2016, dubbed Lazy SMP [6]. The further improved Pedone 1.6 released in June 2017 can use up to 128 threads and comes with an executable for Android [7]. Since 2018, Pedone 1.8 is able to play Chess960. Pedone 3.0, released in January 2021, uses a pure neural network evaluation [8].

See also

Forum Posts

2014

2015 ...

2020 ...

External Links

Chess Engine

Misc

Pawn (chess) - Wikipedia
Pedestrian - Wikipedia

References

Up one Level