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Showing posts from October, 2016

Best chess engine: Stockfish 16103013. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Stefan Geschwentner        
Information on the compilation: Timestamp: 1477831683 
Bonus for attacked passed pawn promotion path  Bonus for each attacked square on the promotion path of an enemy passed pawn. 
STC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 141511 W: 25295 L: 24579 D: 91637 
LTC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 23161 W: 3022 L: 2831 D: 17308 
Bench: 5926706 
Stockfish 16103013  - download

Crochess2 wins JCER Amateur League G, edition 02/2016, 2016.10.26 - 2016.10.31

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Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit
870 tournament games download, GUI-Arena 3.5.1,  146.625 JCER games download,
Book: Perfect 2016, Table created - Scid vs PC




Best chess engine: Stockfish 16102706_vande2. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Joost VandeVondele       
Information on the compilation: Timestamp: 1477543481 
Fix a series of undefined behaviours 
Avoid shifting negative signed integers and use typed  enum to avoids decrementing a variable beyond its defined  range, like:  for (Rank r = RANK_8; r >= RANK_1; --r) 
Changes were tested individually and passed SPRT[-3, 1]. 
With this patch gcc --sanitize builds cleanly. 
No functional change. 
Stockfish 16102706_vande2  - download

Isa 1.9.8 - winboard chess engine

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Isa - winboard chess engine

About engine: Isa is a chess engine I developp during my free time. Chess programming is my hobby since the 80's years. I started developing with QuickBasic 4.5 (I wrote a weak engine named Bishop) .
Then I learned the C langage and studed the TSCP source code (like everyone I think) . « Titan » and « DCP » (DCP = Titan + winboard protocol) was born . Strengh was always so weak , around 1400 elo . After that I rewrote again my engine and Jars came out (I released Jars) and then Yoda (both played around 1800-1900 elo. After finding dificult to improve , I stopped working on both engines and started to work on Isa , a diferent way. I started Isa from Firstchess.c source.
Author - Daniel Anulliero
Isa 1.9.8 - download

Best chess engine: Stockfish 16102706_vande. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Joost VandeVondele       
Information on the compilation: Timestamp: 1477542564 
travis-ci: Enable undefined behavior checking 
Stockfish 16102706_vande  - download

Crafty 25.2 - winboard engines. New version!

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Crafty - winboard chess engines

Author - Robert Hyatt (USA)

JCER=2769 


Crafty 25.2 download


Best chess engine: Stockfish 16102706. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation -  syzygy      
Information on the compilation: Timestamp: 1477542382 
Output PV if last iteration does not complete 
Instead of outputting "info nodes ... time ..." when the last  iteration is interrupted, simply call UCI::pv() to output the PV. 
I thought about calling UCI:pv() with bounds -VALUE_INFINITE, VALUE_INFINITE to avoid "lowerbound" or "upperbound" appearing in it, but I'm not sure that would be any better. 
This patch fixes rare inconsistencies between the first move of  the last PV output and the bestmove played. It also makes sure  that all the latest statistics are sent to the GUI (not only nodes  and time but also nps, tbhits, hashfull). 
No functional change. 
Stockfish 16102706  - download

Chess engine: Bearded neural v44.5

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Bearded neural - winboard chess engine

Homepage

Author - Mariusz Marszałkowski

Bearded neural v44.5 - download





Very strong chess engine: Stockfish 16102506_nicolet New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation -  Stéphane Nicolet       
Information on the compilation: Timestamp: 1477371449 
Endgame malus for having a king in a pawnless flank  Original idea by "ElbertoOne", while "FauziAkram" suggested to put a  small midgame penalty too. 
STC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 71808 W: 13038 L: 12610 D: 46160 
LTC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 150874 W: 19828 L: 19221 D: 111825 
Bench: 6077005 
Stockfish 16102506_nicolet  - download

Andscacs 0.88 - UCI chess engine

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Andscacs - UCI chess engine

Author - Daniel Jose Queralto

Home page

JCER rating old version: = 3112


Andscacs 0.88 download


Very strong chess engine: Stockfish 16102506. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation -  VoyagerOne      
Information on the compilation: Timestamp: 1477370659 
History Stat Comparison  Adjust LMR by comparing history stats  with opponent (prior ply). 
STC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 27754 W: 5066 L: 4824 D: 17864 
LTC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 216596 W: 28157 L: 27343 D: 161096 
Bench: 5437729 
Stockfish 16102506  - download


First test chess engine: Texel 1.07a6

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PEngineJcerScore *****  Chg+/-/=1: Texel 1.07a6 2990 51.0 / 100 ===10=1=0==1=10==10==0==00=101==1======1====0111==
==0=01===========0=====1==============0===011=====+10(+16 -14 =70)2: Texel 1.06  2990 49.0 / 100 ===01=0=1==0=01==01==1==11=010==0======0====1000==
==1=10===========1=====0==============1===100=====-10(+14 -16 =70)
Temp 3' + 3" Hardware: Intel Core i7-4710MQ CPU @ 2.50GHz with 7,9 GB Memory , Windows 10 64-bit
100 tournament games download, GUI-Arena 3.5.1141.379 JCER games download
Book: Perfect 2016, Table created - Scid vs PC 


Taltos r99 - new chess engine (winboard)

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Taltos - winboard chess engine

Author - Gábor Buella

Talos: C source (Linux64 and Windows) experimental chess engine for learning and fun.

Taltos r99 - download



Pigeon 1.51 - UCI chess engine (Windows and Linux). New version!

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Pigeon - UCI chess engine

Author: Stuart Riffle

homepage

Rating JCER=1388

About version 1.51:
Fixed timing logic under 40/4 and 40/25 time controls (thanks to Graham Banks for pointing out the error!)
Fixed delay when setting a new position at the start of a move.


Pigeon 1.51 download


New chess engine: Rasher 0.1 alpha

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Author - Morten Lohne

Rasher 0.1 alpha - download




Neurone XXV - winboard chess engine. New version

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Neurone  - winboard chess engines

Neurone website

AuthorLissandrello Luca

Neurone XXV download



Andscacs 0.87.215 - UCI chess engine

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Andscacs - UCI chess engine

Author - Daniel Jose Queralto

Home page

JCER rating old version: = 3112,


Andscacs 0.87.215 download


Scid vs PC - chess database application. New version 4.17

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SCID - "Shane's Chess Information Database" is a huge chess toolkit with extensive database analysis and chess-playing features.

Scid vs. PC is a usability and bug-fix fork of Scid. It has extensive interface fixes and improvements, and is fully compatible with Scid's .si4 databases.It's new features include a totally rewitten Gamelist, a Computer Tournament, and FICS, Tree and Book improvements.

New and Improved Features
Overhauled and customizable interface. Engine versus engine computer tournaments. Extra search features, including move, end-of-game, and stalemate/checkmate searches. Drag+Drop file opens for Windows and Linux. Rewritten Gamelist widget with convenient context menus and buttons, and integrated Database Switcher. Improved Computer Game and FICS features, including premove, and simultaneous observed games. Many chess engine improvements, including max-ply option, an unlimited number of engines running, and the function hot-keys can be explicitly s…

Ethereal 7.78 wins JCER Amateur League F, edition 02/2016, 2016.10.21 - 2016.10.26

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Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit
720 tournament games download, GUI-Arena 3.5.1,  146.625 JCER games download
Book: Perfect 2016, Table created - Scid vs PC




New winboard chess engine: Jacksprat 1.0 r2 (Windows and Linux)

Author : Joshua Scholar
Winboard chess engine written in C++ in a single file.
Jacksprat 1.0 r2  - download

UCI chess engine: Alcibiades 0.1 r1374

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Alcibiades - UCI chess engine

Author : Evgeni Pandurski

Alcibiades 0.1 r1374 - download


Texel 1.07a6 - UCI Chess engine. New version

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Texel - UCI Chess engines

Author - Peter Osterlund

Previous version chess engine Texel

Rating JCER=2990 

Texel 1.07a6 download


K2 0.87 - UCI chess engine. New version!

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K2 - UCI chess engines

Author - Sergey Meus 

Previous version chess engine K2


Rating JCER older versions=2367


K2 0.87 download


WyldChess 22.10.2016 - winboard chess engine

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WyldChess - winboard chess engine

Author - Mk-Chan


Overview
A free chess engine in C. It does not provide a GUI (Graphical User Interface) but can be linked to one that supports the Xboard/Winboard protocol.

The 32-bit and 64-bit executables are available in the binaries folder. Alternatively, WyldChess can be compiled using Cygwin or MinGW (Samples available in makefile).



WyldChess 22.10.2016 - download

Ghost 3 (beta 20161015) - winboard chess engine. New version!

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Ghost - winboard chess engine

Homepage ghost


Author - Philipp Claßen

Ghost 3 (beta 20161015) - download



Crafty 25.1 PO (Peter Österlund builds) - winboard engines. New version!

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Crafty - winboard chess engines

Author - Robert Hyatt (USA)

JCER=2769 


Crafty 25.1 PO download


Giraffe 20161023 - winboard chess engine. New version

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Giraffe - winboard chess engines
Author - Matthew Lai

Giraffe old version rating JCER=2314

Giraffe 20161023 download

Very strong chess engine: Stockfish 16102208. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation -  Marco Costalba     
Information on the compilation: Timestamp: 1477117333 
Correcty resey TB hit counter  Restore original behaviour to reset  the counter before a new move search. 
Also fixed some warnings and added const qualifier to a couple of functions, as suggested by m_stembera. 
Thanks to Werner Bergmans for reporting the regression. 
No functional change. 
Stockfish 16102208  - download