Sunday, December 31, 2017

Andscacs 0.92165 - UCI chess engine. New version!

Andscacs - UCI chess engine  

Author - Daniel Jose Queralto

JCER rating = 3090


Andscacs 0.92165 download


Chess engine: Toga II v4.01 (based at Fruit)

Toga II - UCI chess engines
Author - Jerry Donald

Rating JCER=2719

Toga II 4.01 download

Sting sf 9.5 - chess engine UCI. New version

Sting sf - UCI chess engines (based on Stockfish 2.1.1)

Author - Marek Kwiatkowski
Rating JCER=2985

Sting sf 9.5 download

Galjoen 0.37.2 - UCI chess engine. New version

Galjoen chess engines WB/UCI
Author: Werner Taelemans

Rating JCER = 1974

Galjoen 0.37.2 - download


Skiull 0.3 - UCI chess engine. New version!

Skiull - UCI chess engine
Rating JCER=1654

Homepage



Skiull 0.3 - download


Raubfisch X37a2 wins JCER Test Tournament, CHESSENGINES, 2017.12.27 - 2017.12.30


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

Saturday, December 30, 2017

Only for donors added: 49 chess engines and 3 book

Only for donors added: 49 chess engines:
Acqua, Amoeba 2.7, asmFish 2017-12-20, BrainFish 171212, BrainFish 171217, BrainFish 171226, Ceibo 0.3.65, CFish 161217, Chess22k 1.7, ChessBrainVB 3.60, ChessBrainVB 3.61, CiChess 1.8 161217, Ethereal 8.60, Ethereal 8.61, Fizbo 2, Fruit reloaded 3.21, ISA 2.0.61, Jumbo 0.5.27, Jumbo 0.6.10, Koedem 1.0, Laser 1.5, McBrain 4.0, Nemorino 4.00, OpenTal 1.0, Raubfisch ME262 GTZ16a, Raubfisch ME262 GTZ16a1, Raubfisch ME262 GTZ16a2, Raubfisch X37a, Raubfisch X37a1, Raubfisch X37a2, Scorpio 2.79, Sf 211217MZ, Snowy, Stockfish 17120614, Stockfish 17121013, Stockfish 17121115, Stockfish 17121708, Stockfish 17121709, Stockfish 17121709_Lemaire, Stockfish 17121816, Stockfish 17121816_VandeVondele, Stockfish 17122610, Stockfish 17122610_VandeVondele, Sugar XPrO 211217, Texel108a5, TinyChess 146-64, TogaII 4.0, Tordenskiold, Tucano 7.00.

and 3 book: Cerebellum_light 171212, Cerebellum_light 171217, Cerebellum_light 171226.




Chess engine: Toga II v4.0 (based at Fruit)

Toga II - UCI chess engines
Author - Jerry Donald

Rating JCER=2719

Toga II 4.0 download

Jumbo 0.6.10 - winboard chess engine. New version!

Jumbo - winboard chess engine

 Important notes:
The Win64 binary was built using CygWin GCC 5.4.0 and requires the following DLLs that are part of the CygWin installation:
cyggcc_s-seh-1.dll
cygstdc++-6.dll
cygwin1.dll

Rating JCER=2182
Author - Sven Schüle, Berlin (Germany)

Jumbo 0.6.10 - download

Chess engine: Chess22k 1.7

Chess22k - UCI (java) chess engine
Author - Evgeniy Korniloff
Homepage

Rating JCER=2612

Chess22k 1.7 - download

Nemorino 4.00 - UCI chess engine. New version!

Nemorino - UCI chess engine
Author - Christian Günther

Rating JCER=2891

Nemorino 4.00 download


Laser 1.5 - UCI chess engine. New version!

Laser - UCI chess engine

Authors: Jeffrey An & Michael An

Rating JCER=2862

Laser 1.5 - download

Chess engine: Koedem 1.0

Koedem  - UCI chess engine (java).
Author: Kolja Kühn (Germany)

Koedem 1.0 - download

ChessBrainVB 3.61 - winboard chess engine. New version

ChessBrainVB -  winboard chess engine

Rating JCER=2840
Author - Roger Zuehlsdorf

 ChessBrainVB 3.61 - download

Chess engine: Ceibo 365


Ceibo - UCI chess engine
Author - Federico Rojo

Ceibo 365 download




Chess Engine: BrainFish 171226 and book: Cerebellum Light 171226

BrainFish - UCI chess engine
JCER Rating=3378

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.

Cerebellum Light 171226 - download   BrainFish 171226 - download

Tuesday, December 26, 2017

Chess engine: Raubfisch X37a2

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

Rating JCER - 3388

Raubfisch X37a2 - download

Stockfish 17122610 - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Guenther Demetz 

Timestamp: 1514281344 

Include x-ray attacks through all queens independently of the color. 
When calculating attacks from rooks/bishops current master includes x-rays through own queen. This patch includes also x-rays through opponent queen. 

Credits go to Brian who inspired for this idea 
https://groups.google.com/forum/?fromgroups=#!topic/fishcooking/Z3APRYpQeMU 

STC: 
LLR: 2.96 (-2.94,2.94) [0.00,5.00] 
Total: 41549 W: 7544 L: 7244 D: 26761 
Elo 2.05 [-0.29,4.19] (95%) 

LTC: 
LLR: 2.96 (-2.94,2.94) [0.00,5.00] 
Total: 110010 W: 14208 L: 13739 D: 82063 
Elo 1.20 [-0.27,2.55] (95%) 

bench: 5544445

⭐⭐⭐   Stockfish 17122610 - download

Chess engine: Raubfisch ME262 GTZ16a2

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

Rating JCER - 3388

Raubfisch ME262 GTZ16a2 - download




Chess engine: McBrain 4.0

Rating JCER=3349

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 4.0 - download

Fizbo 2 - UCI chess engine. New version!

Fizbo - UCI chess engine
Fizbo - homepage

Rating JCER=3093
Author - Youri Matiounine

Fizbo 2 download

Stockfish 17122610_VandeVondele - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Joost VandeVondele 

Timestamp: 1514281242 
Upon changing the number of threads, make sure all threads are bound 

The heuristic to avoid thread binding if less than 8 threads are requested resulted in the first 7 threads not being bound. 
The branch was verified to yield a roughly 13% speedup by @CoffeeOne on the appropriate hardware and OS, and an earlier version of this patch tested well on his machine: 

ELO: 9.24 +-4.6 (95%) LOS: 100.0% 
Total: 5000 W: 634 L: 501 D: 3865 

To make sure all threads (including mainThread) are bound as soon as the total number exceeds 7, recreate all threads on a change of thread number. 
To do this, unify Threads::init, Threads::exit and Threads::set are unified in a single Threads::set function that goes through the needed steps. 
The code includes several suggestions from @joergoster. 

Fixes issue #1312 

No functional change 

⭐⭐⭐   Stockfish 17122610_VandeVondele - download

Super League JCER 2018 - start 01.01.2018!


♙GUI-Arena
♙ Temp 60'
♙Top 10 engines Rating list JCER:

1. Stockfish 261217 JCER=3389
2. Raubfisch X37a2 JCER=3388
3. SugaR XPrO 211217 JCER=3378
4. Houdini 6.02 JCER=3309
5. Komodo 11.2.2 JCER=3306
6. Fire 6.1 JCER=3184
7. Roc 0.8 (2017Jun17) JCER=3102
8. Gull 3.1JV JCER=3094
9. Andscacs 0.921 JCER=3090
10. Fizbo 2  JCER=3090

More 




Thursday, December 21, 2017

DeepShredder 13 wins JCER Test Tournament P-60' 2017.12.15 - 2017.12.21


Temp P60' Hardware: Intel Core i7-4710MQ with 7,9 GB Memory , Windows 10 x64
90 Tournament games, GUI-Arena 3.5.1161.651 JCER games - until 31.12.2016
 
64.860 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Games, engines, book - download    Table created - Scid vs PC


Chess engine: Raubfisch ME262 GTZ16a1

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

Rating JCER - 3388

Raubfisch ME262 GTZ16a1 - download

Chess engine: Sf211217MZ

Sf211217MZ - download

BrainFish 171212 wins JCER Test Tournament, 2017.12.16 - 2017.12.20


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


Chess engine: asmFish 2017-12-20

UCI chess engine: asmFish

JCER Rating=3382

asmFish 2017-12-20 - download

SugaR XPrO 211217 - very strong chess engine!

Sugar - UCI chess engine
Author - Marco Zerbinati 

JCER=3378

SugaR XPrO 211217 - download

Wednesday, December 20, 2017

Chess engine: Raubfisch X37a1

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

Rating JCER - 3388

Raubfisch X37a1 - download

Tuesday, December 19, 2017

Jumbo 0.5.27 - winboard chess engine. New version!

Jumbo - winboard chess engine

 Important notes:
The Win64 binary was built using CygWin GCC 5.4.0 and requires the following DLLs that are part of the CygWin installation:
cyggcc_s-seh-1.dll
cygstdc++-6.dll
cygwin1.dll

Rating JCER=2182
Author - Sven Schüle, Berlin (Germany)

Jumbo 0.5.27 - download

Monday, December 18, 2017

Stockfish 17121816_VandeVondele - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Joost VandeVondele 

Timestamp: 1513611141 

Allow for general transposition table sizes. (#1341) 

For efficiency reasons current master only allows for transposition table sizes that are N = 2^k in size, the index computation can be done efficiently as (hash % N) can be written instead as (hash & 2^k - 1). On a typical computer (with 4, 8... etc Gb of RAM), this implies roughly half the RAM is left unused in analysis. 

Recently a neat trick was proposed to map a hash into the range [0,N[ more efficiently than (hash % N) for general N, nearly as efficiently as (hash % 2^k): 

namely computing (hash * N / 2^32) for 32 bit hashes. This patch implements this trick and now allows for general hash sizes. Note that for N = 2^k this just amounts to using a different subset of bits from the hash. Master will use the lower k bits, this trick will use the upper k bits (of the 32 bit hash). 

LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 128498 W: 23332 L: 23395 D: 81771 

There are two (smaller) caveats: 

1) the patch is implemented for a 32 bit hash (so that a 64 bit multiply can be used), this effectively limits the number of clusters that can be used to 2^32 or to 128Gb of transpostion table. That's a change in the maximum allowed TT size, which could bother those using 256Gb or more regularly. 

2) Already in master, an excluded move is hashed into the position key in rather simple way, essentially only affecting the lower 16 bits of the key. This is OK in master, since bits 0-15 end up in the index, but not in the new scheme, which picks the higher bits. This is 'fixed' by shifting the excluded move a few bits up. Eventually a better hashing scheme seems wise. 

Despite these two caveats, I think this is a nice improvement in usability. 

Bench: 5346341

⭐⭐⭐   Stockfish 17121816_VandeVondele - download


Java chess engine: Tordenskiold

Tordenskiold - java UCI chess engine

author: Jonas Praem 

Tordenskiold - download



Chess engine: Snowy

Snowy - UCI chess engine

Author -  Jason Creighton

Snowy - download




Tiny Chess 1.4.6 - UCI chess engine (for Windows, Mac, Linux). New version!


Tiny Chess - UCI chess engine
Author - Kelvin Yang  Rating JCER=1976
Homepage

About
Tiny Chess is an original UCI-compatible chess engine written in the C++11 programming language.
The engine observes all rules of chess, including castling, en passant, draw by threefold repetition, etc.

Tiny Chess 1.4.6 - download

Stockfish 17121816 - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Günther Demetz

Timestamp: 1513611027 
Enhanced verify search (#1338) 

by disabling null-move-pruning for the side to move for first part of 
the remaining search tree. This helps to better recognize zugzwang. 

STC: 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 18220 W: 3379 L: 3253 D: 11588 

LTC: 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 41899 W: 5359 L: 5265 D: 31275 

bench: 5776193

⭐⭐⭐   Stockfish 17121816 - download

Chess Engine: BrainFish 171217 and book: Cerebellum Light 171217

BrainFish - UCI chess engine
JCER Rating=3378

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.

Cerebellum Light 171217 - download   BrainFish 171217 - download

Sunday, December 17, 2017

ChessBrainVB 3.60 - winboard chess engine. New version

ChessBrainVB -  winboard chess engine

Rating JCER=2840
Author - Roger Zuehlsdorf

 ChessBrainVB 3.60 - download

Stockfish 17121709_Lemaire - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Gontran Lemaire 

Timestamp: 1513498817 

Remove QueenMinorsImbalance array #1340 

Remove QMI array and adjust bishop, knight and queen coefficients in QuadraticOurs and QuadraticTheirs arrays in compensation of this removal. 

STC : 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 49659 W: 9029 L: 8957 D: 31673 

LTC : 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 45905 W: 5834 L: 5745 D: 34326 

Bench: 5176807 

⭐⭐⭐   Stockfish 17121709_Lemaire - download

Chess engine: OpenTal

OpenTal - UCI chess engine

Author - Paweł Kozioł

OpenTal - download

Scorpio 2.79 - winboard engines. New version

Scorpio - Winboard engines

JCER ranking = 2616

Author: Daniel Shawul

Scorpio 2.79 download

Stockfish 17121709 - new version!

Stockfish, chess engine UCI

Rating JCER = 3389
🔬 Author: Joost VandeVondele

Timestamp: 1513498315 
Make staticEval independent of the search path 

Current master can yield different staticEvals depending on the path used to reach the position. The reason for this is that the evaluation after a null move is always computed subtracting 2 * Eval::Tempo, while this is not the case for lazy or specialized evals. This patch always adds tempo to evals, 
which doesn't affect playing strength: 

LTC 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 59911 W: 7616 L: 7545 D: 44750 

STC 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 104947 W: 18897 L: 18919 D: 67131 

Fixes issue #1335 

Bench: 5208264 

⭐⭐⭐   Stockfish 17121709 - download

Tucano 7.0 - winboard chess engine. New version

Tucano - winboard chess engines
Author - Alcides Schulz

JCER=2525

Tucano 7.0 download


Isa 2.0.61 - 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=2094

Isa 2.0.61 - download

Best posts of the month