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

If you do not want to wait a long time ... - donate a minimum of 6$, enter your email - you will gain full access to the folder with chess engines

Bonus on donate of $ 10 - 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

Saturday, June 24, 2017

Holiday until 1 July

Holiday until 1 July 🌴🌴🌴



Friday, June 23, 2017

Stockfish 17062123_Voyager - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: VoyagerOne

More:
Timestamp: 1498079165 

Increase reduction if tt-move is a capture 

The idea is that chances are the tt-move is best and will be difficult to raise alpha when playing a quiet move. 

STC: 
LLR: 2.95 (-2.94,2.94) [0.00,5.00] 
Total: 7582 W: 1415 L: 1259 D: 4908 

LTC: 
LLR: 2.97 (-2.94,2.94) [0.00,5.00] 
Total: 59553 W: 7885 L: 7573 D: 44095 

Bench: 5725676 

Closes #1147 

⭐⭐⭐   Stockfish 17062123_Voyager - download


SugaR XPrO 1.0c wins JCER Test Tournament, 2017.06.16 - 2017.06.22


Temp 3' + 3" Hardware: Intel Core i3-3217U CPU with 3,9 GB Memory , Windows 10 64-bit
840 Tournament games, GUI-Arena 3.5.1161.651 JCER games download,  until 31.12.2016
 
28.044 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Table created - Scid vs PC

Stockfish 17062123 - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: snicolet

More:
Timestamp: 1498078919 

Improve readability of evaluation functions 

This patch puts the evaluation helper functions inside EvalInfo struct, which simplifies a bit their signature and (most importantly, IMHO) makes their C++ code much cleaner and simpler to read (by removing the "ei." qualifiers all around in evaluate.cpp). 

Also rename the EvalInfo struct into Evaluation class to get a natural invocation v = Evaluation(p).value() to evaluation position p. 

The downside is an increase of 20 lines in evaluate.cpp (for the prototypes of the helper functions). The upsides are better readability and a speed-up of 0.6% (by generating all the helpers for the NO_TRACE case together, which helps the instruction cache). 

No functional change 
Closes #1135 

⭐⭐⭐   Stockfish 17062123 - download


New chess engine: Baislicka 1.0

Baislicka - UCI chess engine

Author - Robert Taylor

Baislicka 1.0 - download


Stockfish 17062122_Voyager - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: VoyagerOne 

More:
Timestamp: 1498078030 

Update Top CPU - Bench: 6599721 

Closes #1145 

⭐⭐⭐   Stockfish 17062122_Voyager - download

Chess engine: Monochrome TM


Monochrome TM - download


Thursday, June 22, 2017

Stockfish 17062122_Kiiski - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: Joona Kiiski 

More:
Timestamp: 1498077903

Revert "Prefetch earlier in qsearch()"

This reverts commit b73016bb41d4c2fad3126b2e0018d71a36e78331.

No functional change
Closes #1144 


⭐⭐⭐   Stockfish 17062122_Kiiski - download


Chess engine: Aristides 220617 ( C port of Stockfish )

Aristides 220617 - download


Stockfish 17062122 - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: Joost VandeVondele

More:
Timestamp: 1498077478 

Fix four data races. 

the nodes, tbHits, rootDepth and lastInfoTime variables are read by multiple threads, but not declared atomic, leading to data races as found by -fsanitize=thread. This patch fixes this issue. It is based on top of the CI-threading branch (PR #1129), and should fix the corresponding CI error messages. 

The patch passed an STC check for no regression: 

http://tests.stockfishchess.org/tests/view/5925d5590ebc59035df34b9f 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 169597 W: 29938 L: 30066 D: 109593 

Whereas rootDepth and lastInfoTime are not performance critical, nodes and tbHits are. Indeed, an earlier version using relaxed atomic updates on the latter two variables failed STC testing (http://tests.stockfishchess.org/tests/view/592001700ebc59035df34924), which can be shown to be due to x86-32 (http://tests.stockfishchess.org/tests/view/592330ac0ebc59035df34a89). Indeed, the latter have no instruction to atomically update a 64bit variable. The proposed solution thus uses a variable in Position that is accessed only by one thread, which is copied every few thousand nodes to the shared variable in Thread. 

No functional change. 

Closes #1130 
Closes #1129 


Stockfish 17061704_snicolet wins JCER Stockfish Test, 2017.06.19 - 2017.06.21



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

Raubfisch X35b wins JCER Test Tournament, 2017.06.13 - 2017.06.18



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



Sunday, June 18, 2017

Stockfish 17061704_savard - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: Alain SAVARD 

More:
Timestamp: 1497668130 

Misc coding style fixes a few comment and blank fixes. 

No functional change 
Closes #1141 

⭐⭐⭐   Stockfish 17061704_savard - download


Raubfisch X35b wins JCER Test Tournament, 2017.06.13 - 2017.06.18


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



Stockfish 17061704_snicolet - new version!

Stockfish, chess engine UCI

Leader rating list JCER = 3372
πŸ”¬ Author: Snicolet 

More:
Timestamp: 1497667958 

Prefetch earlier in qsearch() 
Closes #1139 

⭐⭐⭐   Stockfish 17061704_snicolet - download



NG Play 9.87b - winboard chess engine. New version

NG Play - winboard chess engine

Author - George Georgopoulos 


JCER=1962

NG Play 9.87b download


Stockfish 17061704_costalba - new version!


Stockfish, chess engine UCI
Leader rating list JCER = 3372
πŸ”¬ Author: Marco Costalba 

More:
Timestamp: 1497666824 

Better naming in endgame code 
And small clean-up of magic bitboards code. 

No functional change. 
Closes #1138 
 
⭐⭐⭐   Stockfish 17061704_costalba - download

Embla 0.9.91 - UCI chess engine. New version


Embla - UCI chess engine

Author - Folkert van Heusden


Rating JCER=1720





 Embla 0.9.91 - download



Stockfish 17061704_Brian Sheppard - new version!


Stockfish, chess engine UCI
Leader rating list JCER = 3372
πŸ”¬ Author: Brian Sheppard 

More:
Timestamp: 1497666619 

Move depth calculation in probCut 
The change passed an STC regression: 

LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 59350 W: 10793 L: 10738 D: 37819 

Base Test Diff 
Mean 2014338 2016121 -1783 
StDev 62655 63441 3860 

p-value: 0.678 
speedup: 0.001 

No functional change. 
Closes #1137 
 
⭐⭐⭐   Stockfish 17061704_Brian Sheppard - download

ChessBrainVB 3.31 - winboard chess engine. New version

ChessBrainVB -  winboard chess engine

Rating JCER=2479
Author - Roger Zuehlsdorf

 ChessBrainVB 3.31 - download


Stockfish 17061704 - new version!


Stockfish, chess engine UCI
Leader rating list JCER = 3372
πŸ”¬ Author: Joost VandeVondele

More:
Timestamp: 1497666001 

Call TT.new_search() earlier. 

TT.new_search() was being called by mainThread in Thread::search(). However, mainThread is the last to start searching, and helper threads could reach a measured rootDepth 10 (on 64 cores) before mainThread increments the TT generation. Fixed by moving the call to MaintThread::search() before helper threads start searching. 

No functional change. 
Closes #1134 
 
⭐⭐⭐   Stockfish 17061704 - download


Friday, June 16, 2017

Bagatur 1.5c - UCI chess engine. New version!

Bagatur - UCI chess engines 
Author: Krasimir I. Topchiyski 

Website Bagatur

Rating JCER=2184

 Bagatur 1.5c download

Komodo 9.02 wins JCER new chess engines Test Tournament, 2017.06.14 - 2017.06.16


Temp 3' + 3" Hardware: Intel Core i3-3217U CPU with 3,9 GB Memory , Windows 10 64-bit
150 Tournament games, GUI-Arena 3.5.1161.651 JCER games,  until 31.12.2016
 
28.044 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Games, engines, book - download       Table created - Scid vs PC



Stockfish compilation - 15062017

SF 15062017 - download






Chess engine: RuyDos 2017.06.13

RuyDos - UCI chess engine
Author - Γlvaro BeguΓ©
homepage



Dragontooth v0.2 "Bahamut" - UCI chess engine. New version!

Dragontooth - UCI chess engine

Author - Dylan Hunn
Homepage

Dragontooth 0.2 "Bahamut" - download


Bagatur 1.5b - UCI chess engine. New version!

Bagatur - UCI chess engines 
AuthorKrasimir I. Topchiyski 

 

Website Bagatur


Rating JCER=2184


 Bagatur 1.5b download




Monday, June 12, 2017

Chess engine: Zevra 1.5 build 446

Zevra - Rating JCER=1533

 Zevra 1.5 b446 - download

Author - Oleg Smirnov


Chess engine: McBrain 2.5

Rating JCER=3348
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.



Sunday, June 11, 2017

ECE-X3 - winboard chess engine. New version!

ECE - winboard chess engine

Homepage

ECE (Easy Chess Engine), Author - Luigino Viscione

in memory of my son Antonio "little" Viscione and my father Antonio Viscione

ECE-X3 download



Chess engine: Dimitri WBE 3.11

Dimitri WBE - winboard chess engine
Homepage

Dimitri: simple wiboard chess engine.

Author - Luigino Viscione



Chess engine: Raubfisch X35b


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


Rating JCER - 3353





Only for donors added: 26 chess engines and book


Only for sponsors added:
26 chess engines (folder: ChessEnginesFree):

amoeba 2.5. BrainFish 170609. CFish 090617. ChessbrainVB 3.30. Counter 1.99 rev7. Dorpsgek-Dillinger. Ethereal 8.15. Ethereal 8.16. galjoen 0.36. ghost 3.1. McBrain 24b. Monolith 0.2. Nemeton 1.51. Orka 170606. Pedone 1.6. Raubfisch X35a. ruydos 01.06.2017. Sabrina 3.0.21. sayuri 2017.06.05. Shark 170606. stockfish 17060618. stockfish 17060619. stockfish 17060619_mstembera. SugaR 280517. WyldChess 1.5. Zevra 1.4 r426.

Book:
Cerebellum_light_170605.7z

pedonebook.zip