Full access to the folder with chess engines - about 3000 files!

If you do not want to wait a long time for download - donate a minimum of 10$, enter your email - you will gain full access to the folder with chess engines

Bonus on donate of $ 15 - access to the folder with games, tables and PDF files
Or transfer bank:
IBAN: PL 58 2490 0005 0000 4000 2134 5302 SWIFT code of the bank: ALBPPLPW Name of bank: Alior Bank
Bank address: Lupuszanska 38D, 02-232 Warsaw Bank Country: Poland Postscript: donation - chess engines (and email)

List of donors

Monday, September 18, 2017

Free chess engines - download update


Update:

S2 - 66 chess engines
S5- 33 chess engines
Shark - 34 chess engines



Chess engine: Raubfisch ME262 GTZ15b


Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler)

Rating JCER - 3341

Raubfisch ME262 GTZ15b - download


Cheese 1.91 - UCI chess engine (Windows, Mac, Android and Linux). New version!

Cheese - UCI chess engines
Homepage


Rating JCER=2536


Author - Patrice Duhamel

Cheese 1.91 download



Andscacs 0.92 - UCI chess engine. New version!

Andscacs - UCI chess engine  

Author - Daniel Jose Queralto

 Home page 

JCER rating old version: = 3102


Andscacs 0.92 download



Wednesday, September 13, 2017

Stockfish 17091212 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Ilvec

More:
Timestamp: 1505212313 

Higher Move Overhead 

This shoudl reduce time losses experienced by users after new time management code. 

Verified for no regression in very short TC (4sec + 0.1) 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 35262 W: 7426 L: 7331 D: 20505 

Bench 5322108 

⭐⭐⭐   Stockfish 17091212 - download


Chess engine: Raubfisch X36b


Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler)

Rating JCER - 3341
Raubfisch X36b - download


Stockfish 17090912 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Ianfab

More:
Timestamp: 1504952614 

Extend ShelterWeakness array by dimension isKingFile 

Use different penalties for weaknesses in the pawn shelter 
depending on whether it is on the king's file or not. 

STC 
LLR: 2.96 (-2.94,2.94) [0.00,5.00] 
Total: 71617 W: 13471 L: 13034 D: 45112 

LTC 
LLR: 2.95 (-2.94,2.94) [0.00,5.00] 
Total: 48708 W: 6463 L: 6187 D: 36058 

Bench: 5322108 

⭐⭐⭐   Stockfish 17090912 - download


Chess engine: SCTR 1.0

SCTR 1.0 - download

Authors: Can Cetin & Dogac Eldenk






Tuesday, September 12, 2017

Chess engine: Klasman Father


Klasman Father - download


Isa 2.0.48 - winboard chess engine (Windows and Linux)


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

Rating JCER=2078

Isa 2.0.48 - download


TCEC Season 10 is starting about October 10th

TCEC Season 10

Stage 1 - preliminary stage.
Involving 24 engines, playing a single round robin.
Time control: 60 min. + 10 sec/move.
The top 8 engines qualify for the next stage!

Confirmation of participation:
1. Andscacs
2. Vajolet
3. Fruit
4. Laser
5. Texel
6. Stockfish
7. Jonny
8. Fire
9. Nirvana
10. Komodo
11. Chiron
12. Fizbo




First Test Chess Engine Zurichess Neuchatel, 2017.09.09 - 2017.09.10



Temp 3' + 3" Hardware: Intel Core i3-3217U CPU 3,9 GB Memory , Windows 10 x64
100 Tournament games, GUI-Arena 3.5.1161.651 JCER games,  until 31.12.2016
 
45.406 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,   Table created - Scid vs PC

Monday, September 11, 2017

Today starts - 3 League JCER (edition 05/2017)



EngineAuthorJCER
Gnucheese 1.00  2642
Tucano 6.0  Alcides Schultz
2574
Cheese 1.9 Patrice Duhamel2536
Djinn1021 Tom Likens2474
Pawny 1.2 Mincho Georgiev2529
Roc 0.8 Demichev/Hyer3139
Carballo 1.7 Alberto Alonso Ruibal2136
Maverick 1.5 Steve Maughan2392
PikoSzachy 41 Piotr Cichy2324
Sjakk 2.2 Jacob Børs Lind2459
Nebula 2.0 Dragan Zdravkovic2463
Glass 2 Pawel Koziol and Edmund Moshammer2474
ProDeo 2.4 Ed Schröder2615
Jikchess 0.02  Janne Kokkala
2356
Muse 0.951 Martin Fierz2392
Ethereal 8.24 Andrew Grant2599
MagnumChess 4.0 Eric Stock2331
Scorpio 2.77 Daniel Shawul2656
Gojemat 7.1.b12 Eric Warolus, Belgium2441
Arminius 2017-01-01Volker Annuss2527
ECE-X3 Luigino Viscione2538
GreKo 2016 Vladimir R.Medvedev2457

Ethereal 8.27 - UCI chess engine (for Windows and Android). New version!

Ethereal - UCI chess engine

Rating JCER=2599

Author - Andy Grant

Ethereal 8.27 - download


EXchess 7.97b wins 2 League JCER edition 05/2017, 2017.09.03 - 2017.09.11

Congratulations to Daniel Homan (author EXchess)!

Temp 3' + 3" Hardware: Intel Core i7-4710MQ with 7,9 GB Memory , Windows 10 64-bit 924 Tournament games
GUI-Arena 3.5.1161.651 JCER games,  until 31.12.2016
 
45.406 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Games, engines, book - download       Table created - Scid vs PC

Sunday, September 10, 2017

Saturday, September 9, 2017

Thursday, September 7, 2017

Chess engine: Raubfisch ME262 GTZ15a


Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler)

Rating JCER - 3341
Raubfisch  ME262 GTZ15a - download


Chess engine: CorChess 1.8 (070917)


CorChess is a clone of Stockfish maintained for better performance on long time controls, trying at least partially to fill the gap between regular tests and demands of correspondence players.


Stockfish 17090510_syzygy - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: syzygy

More:
Timestamp: 1504601830 
Small simplication of see_ge() 

Two simplifications: 
- Remove the initialisation to 0 of occupied, which is now unnecessary. 
- Remove the initial check for nextVictim == KING 

If nextVictim == KING, then PieceValue[MG][nextVictim] will be 0, so that balance >= threshold is true. So see_ge() returns true anyway. 

No functional change. 

⭐⭐⭐   Stockfish 17090510_syzygy - download


Chess engine: Toltec Sambala

Toltec Sambala download


Stockfish 17090510 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author:Marco Costalba

More:
Timestamp: 1504600834 

Travis CI: Make all warnings into errors 

Compile with -Werror flag. To make debugging easier 
also show compile ourput. 

This flag is enabled only in Travis CI, not in the shipped 
Makefile becuase we can't test on every possible platform. 

⭐⭐⭐   Stockfish 17090510 - download


Tuesday, September 5, 2017

Chess engine: Raubfisch X36a


Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler)


Rating JCER - 3341

Raubfisch X36a - download


Monday, September 4, 2017

Sunday, September 3, 2017

Stockfish 17090209 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: syzygy

More:
Timestamp: 1504339144 
Prevent Stockfish from exiting if DTZ table is not present 

During TB initialisation, Stockfish checks for the presence of WDL tables but not for the presence of DTZ tables. When attempting to probe a DTZ table, it is therefore possible that the table is not present. 
In that case, Stockfish should neither exit nor report an error. 

To verify the bug: 
$ ./stockfish 
setoption name SyzygyTable value <path_to_WDL_dir> 
position fen 8/8/4r3/4k3/8/1K2P3/3P4/6R1 w - - 
go infinite 
Could not mmap() /opt/tb/regular/KRPPvKR.rtbz 


(On my system, the WDL tables are in one directory and the DTZ tables 
in another. If they are in the same directory, it will be difficult 
to trigger the bug.) 

The fix is trivial: check the file descriptor/handle after opening the file. 

No functional change. 

⭐⭐⭐   Stockfish 17090209 - download

Chess engines prehistory - JCER Blitz League 2010

7 years ago...
😀






Stockfish 17090120_costalba - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Marco Costalba

More:
Timestamp: 1504290211 
Fix a warning with MSVC 

warning C4244: '*=': conversion from 'double' to 'int', possible loss of data 

No functional change. 

⭐⭐⭐   Stockfish 17090120_costalba - download


Chess opening book: Mini 4C (ctg file)



Chess opening book: Mini 4C - download


Stockfish 17090120b - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Joost VandeVondele

More:
Timestamp: 1504289983 
Multi-threaded search testing with valgrind 

Also check with valgrind the multi-threaded search. 
On top of the fix for issue #1227 (PR #1235). 

No functional change. 

⭐⭐⭐   Stockfish 17090120b - download


Chess engine: SF030817MZ

SF030817MZ - download


Stockfish 17090120 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Joost VandeVondele

More:
Timestamp: 1504289816 
Fix uninitialized memory usage 

After increasing the number of threads, the histories were not cleared, resulting in uninitialized memory usage. 

This patch fixes this by clearing threads histories in Thread c'tor as is the idomatic way. 

This fixes issue 1227 
No functional change. 

⭐⭐⭐   Stockfish 17090120 - download


EnkoChess 01.09.2017 - new version!

EnkoChess - UCI chess engine
Homepage

Author - Evgeny Silchenko
Raning JCER=1606

EnkoChess 01.09.2017 - download


Stockfish 17083108 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: VoyagerOne

More:
Timestamp: 1504162417 
Adjust moveCount history only at LMR 

STC: 
LLR: 3.32 (-2.94,2.94) [-3.00,1.00] 
Total: 17584 W: 3277 L: 3131 D: 11176 

LTC: 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 26412 W: 3447 L: 3334 D: 19631 

Bench: 5417521 

⭐⭐⭐   Stockfish 17083108 - download


Today starts - 2nd league JCER (edition 05/2017)



EngineAuthorJCER
Zurichess luzern Manuel Diaz2644
DisasterArea 1.65 Jochen Peussner2752
Amoeba 2.5 Richard Delorme2664
Gaviota 1.0 Miguel A.Ballicora2801
EXchess 7.97b Dan Homan2779
Maxima2 2.0.0 r395 Hof & Hajeweit2579
Cheng4 0.39 Martin Sedlak2849
Murka 3  2693
Rhetoric 1.4.3 Alberto Sanjuan2622
Dirty 30APR2017 Pradu Kannan+Andres Valverde2717
TheBaron 3.29 Richard Pijl2584
Toga II 280513 Thomas Gaksch & Fabien Letouzey2736
Tornado 8 Engin Üstün2690
Atlas 3.80 Andres Manzanares2703
Discocheck 5.2.1 Lucas Braesch2710
Nemo 1.01 beta Michael Hoffman2694
Octochess r5506 HK Tim Kosse2685
Daydreamer 2.0.0 Aaron Becker2757
BorodinoChess 1.0 x32Alex Kutuzoff2577
K2 0.87 Sergey Meus2405
Donna 4.0 Michael Dvorkin2435
Deuterium 14.3.34.130Ferdinand Mosca2726

Stockfish 17083015 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Joost VandeVondele

More:
Timestamp: 1504098160 
Simplify away non-normal moves in SEE 

credit goes to @mstembera for suggesting this approach. SEE now deals with castling, promotion and en passant in a similar way. 

passed STC 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 32902 W: 6079 L: 5979 D: 20844 

passed LTC 
LLR: 3.92 (-2.94,2.94) [-3.00,1.00] 
Total: 110698 W: 14198 L: 14145 D: 82355 

Bench: 5713905 

⭐⭐⭐   Stockfish 17083015 - download


Chess engine: McBrain 2.7

Rating JCER=3379

McBrain is a Stockfish based chess engine ( directly derived from the Stockfish source).
Stockfish is currently the strongest chess engine in the world. McBrain also features the Cerebellum book and code used by Brainfish (a Stockfish (SF) based engine by Thomas Zipproth - with the Cerebellum book enabled it will play about 30 ELO stronger than Standard Stockfish.

McBrain 2.7 - download


Stockfish 17082611 - new version!

Stockfish, chess engine UCI

Rating JCER = 3427
🔬 Author: Marco Costalba

More:
Timestamp: 1503741027 
Appveyor: do a Debug and Release build 
And set x86 and x64 platforms for real. 

Currently this is broken and the same binary is compiled for all platforms. 

This is becuase we use a custom build step. OTH the default 
build step seems not compatible with cmake generated *sln file. 

No functional change. 

⭐⭐⭐   Stockfish 17082611 - download

Komodo 9.02 wins 1 League JCER, edition 05/2017, 2017.08.25 - 2017.09.03


Temp 3' + 3" Hardware: Intel Core i7-4710MQ with 7,9 GB Memory , Windows 10 64-bit
924 Tournament games, GUI-Arena 3.5.1161.651 JCER games,  until 31.12.2016
 
45.406 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Games, engines, book - download    Table created - Scid vs PC

Saturday, September 2, 2017

Chess engine: BullitChess 1.0

BullitChess is a chess engine supporting the UCI protocol (not fully actually). 



Always under development, but can play decent games.
Author - Arnaud Halle

BullitChess 1.0 - download


Chess engine: RuyDos 1.0.27

RuyDos - UCI chess engine
Rating JCER=2609

Author - Álvaro Begué

homepage

RuyDos 1.0.27 - download



Chess engine: Aristides 010917 ( C port of Stockfish )



Chess engine: Aristides ( C port of Stockfish )

Aristides 010917 - download


Friday, September 1, 2017

Chess Engine: BrainFish 170831

BrainFish - UCI chess engine

Information from the author:
Brainfish is a standard Stockfish chess engine extended by a general book format that is capable of handling a reduced part of Cerebellum, which is an innovative chess opening and playing book. In Brainfish, the book moves are only used in engine games, not in analysis mode.

All moves in the published book Cerebellum_light.bin generated by Cerebellum were calculated by using
Stockfish as analysis engine, without using statistics. Then those moves where recalulated by the Cerebellum Library using a graph algorithm that makes all scores in the library consistant. Consistant scores means for example, in case the starting position has a score of 0.2 and a best move is 1.e4, the position after 1.e4 must have the score -0.2. Additionally, some others properties are found, like the best main line of a position and possible Transitions.

Hence, when Brainfish is playing moves that are in the Cerebellum book, it plays like Stockfish regarding the evaluation, only at a much higher skill level. Pondering is only active after the last move out of the book has been played.

The lines in Cerebellum_light.bin are in some cases reaching the late middlegame and endgame.

BrainFish is licensed unter the GPL, which includes the access code to the general book format.


 BrainFish 170831 - download