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Showing posts from August, 2017

Shark 170827bf (has Cerebellum book integrated in exe file.)

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Chess engine: Raubfisch ME262 GTZ15

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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 GTZ15 - download

Demolito 2017.08.26 (Windows,Linux and Android). New version!

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Demolito - UCI chess engine

Author : lucasart

About
UCI bitboard chess engine written in C++. Plays also chess960.
Due to bitwise operation intrinsics this engine only works for SSE4.2 and newer processors. All needed DLLs are included.(Cygwin compile).


Demolito 2017.08.26 - download

Galjoen 0.36.1 - UCI chess engine. New version

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Galjoen chess engines WB/UCI

Homepage

Author: Werner Taelemans

Rating JCER = 1809

Galjoen 0.36.1 - download



ChessBrainVB 3.50 - winboard chess engine. New version

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ChessBrainVB -  winboard chess engine

Rating JCER=2564
Author - Roger Zuehlsdorf

ChessBrainVB 3.50 - download

Chess engine: Raubfisch X36

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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 X36 - download


Page JCER League - update

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Page: JCER League - new links added!


Only for donors added: 49 chess engines and book

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Only for sponsors added 49 chess engines (folder: ChessEnginesFree):
asmFish 2017-08-05, asmFish 2017-08-10, asmFish 2017-08-14, BrainFish 170820, CFish 110817, chess22k 1.5, Dimitri 3.61, EnkoChess 030817, EnkoChess 190817, EnkoChess 230817, Ethereal 8.24, gnuchess 6.2.5, Nirvanachess 2.4, Raubfisch ME262 GTZ14e, Raubfisch X35c, Raubfisch X35f, Roc 0.9, RomiChess P3m, ruydos 10082017, sayuri r2017.08.19, SF170810vk_ASM, Sf-Zander.080817, shallow 1.0.2, Shark 170815 bf, stockfish 17081011, stockfish 17081019, stockfish 17081019_Costalba, stockfish 17081019_Costalba2, stockfish 17081019_VandeVondele, stockfish_17081021, stockfish 17081107, stockfish 17081211, stockfish 17081313, stockfish 17081314, stockfish 17081508, stockfish 17081709, stockfish 17081710, stockfish 17081711, stockfish 17081723, stockfish 17081811_x6, stockfish 17081913, stockfish 17081914, stockfish 17082210, stockfish 17082609, stockfish 17082609_Nicolet, stockfish 17082609_VandeVondele, Supra 25.0, ThinksFish.1.03b,…

SugaR XPrO 1.2 wins Super League edition 05/2017, 2017.08.16 - 2017.08.25

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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
39.509 JCER games (from 01.01.2017)  JCER League
Book: Perfect 2017,     Games, engines, book - download       Table created - Scid vs PC

Stockfish 17082609_VandeVondele - new version!

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Stockfish, chess engine UCI

Rating JCER = 3331
🔬 Author: Joost VandeVondele

More:
Timestamp: 1503734014 

Improve multi-threaded mate finding 

If any thread found a 'mate in x' stop the search. Previously only mainThread would do so. Requires the bestThread selection to be adjusted to always prefer mate scores, even if the search depth is less. 

I've tried to collect some data for this patch. On 30 cores, mate finding seems 5-30% faster on average. It is not so easy to get numbers for this, as the time to find a mate fluctuates significantly with multi-threaded runs, so it is an average over 100 searches for the same position. Furthermore, hash size and position make a difference as well. 

Bench: 5965302 

⭐⭐⭐   Stockfish 17082609_VandeVondele - download

Chess engine: Zevra 1.6 build 497

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Zevra - Rating JCER=1644

 Zevra 1.6 b497 - download

Author - Oleg Smirnov



Stockfish 17082609_Nicolet - new version!

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Stockfish, chess engine UCI

Rating JCER = 3331
🔬 Author: Stéphane Nicolet

More:
Timestamp: 1503732867 

Count all weak squares in the king ring with a single popcount 

Passed STC: 
LLR: 2.95 (-2.94,2.94) [0.00,4.00] 
Total: 26966 W: 4993 L: 4745 D: 17228 
http://tests.stockfishchess.org/tests/view/599e798a0ebc5916ff64aa8c 

and LTC: 
LLR: 2.95 (-2.94,2.94) [0.00,4.00] 
Total: 39570 W: 5104 L: 4857 D: 29609 
http://tests.stockfishchess.org/tests/view/599ee5230ebc5916ff64aabe 

Bench: 5965302 

⭐⭐⭐   Stockfish 17082609_Nicolet - download

Chess engine: RomiChess P3m

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Romichess - Winboard chess engine.

Author - Michael J. Sherwin

RomiChess P3m - download

Stockfish 17082609 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Joost VandeVondele

More:
Timestamp: 1503732642 

Use moveCount history for reduction 

Use less reduction for moves with larger moveCount if your 
opponent did an unexpected (== high moveCount) move in the previous ply... unexpected moves might need unexpected answers. 

passed STC: 
http://tests.stockfishchess.org/tests/view/599f08cc0ebc5916ff64aace 
LLR: 2.97 (-2.94,2.94) [0.00,5.00] 
Total: 9638 W: 1889 L: 1720 D: 6029 

passed LTC: 
http://tests.stockfishchess.org/tests/view/599f1e5c0ebc5916ff64aadc 
LLR: 2.95 (-2.94,2.94) [0.00,5.00] 
Total: 28308 W: 3742 L: 3533 D: 21033 

Bench: 5747429 

⭐⭐⭐   Stockfish 17082609 - download

EnkoChess 23.08.2017 - UCI chess engine. New version!

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EnkoChess - UCI engine
Homepage

Author - Evgeny Silchenko

EnkoChess 23.08.2017 - download

Stockfish 17082210 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Stéphane Nicolet

More:
Timestamp: 1503389779 

Avoid constructing an empty tuple in qsearch 

Avoid constructing, passing as a parameter and binding a useless empty tuple of pointers in the qsearch move picker constructor. 

Also reformat the scoring function in movepicker.cpp and do some cleaning in evaluate.cpp while there. 

No functional change. 

⭐⭐⭐   Stockfish 17082210 - download

Chess engine: Dimitri 3.61

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Dimitri - winboard chess engine
Homepage
Author - Luigino Viscione

JCER rating=2121


Dimitri 3.61 - download


Shark 170815 bf wins JCER Test Tournament, 2017.08.21 - 2017.08.23

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

Stockfish 17081914 - new version!

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Stockfish, chess engine UCI
Leader rating list JCER = 3331 🔬 Author: IIvec
More: Timestamp: 1503145951 

Fix some Clang warnings 
Found by Clang in extra verbose mode :-) 
No functional change. 

⭐⭐⭐   Stockfish 17081914 - download

SF170810vk ASM wins JCER Test Tournament, 14-21.08.2017

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

Stockfish 17081913 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: IIvec

More:
Timestamp: 1503143892 

Wide bench coverage 

Add tests for: 
- Positions with move list 
- Chess960 positions 

Now bench covers almost all cases, only few endgames are still out of reach (verified with lcov) 

It is a non functionality patch, but bench changed because we added new test positions. 
bench: 5479946 

⭐⭐⭐   Stockfish 17081913 - download

Chess Engine: BrainFish 170820 and book: Cerebellum Light 170819

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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…

Stockfish 170818 - 6 compilations!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Marco Costalba

Stockfish 170818 - 6 compilations download






Shark 170815bf (has Cerebellum book integrated in exe file.)

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Stockfish 17081723 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: IIvec

More:
Timestamp: 1503006142
Time management simplification 

STC (http://tests.stockfishchess.org/tests/view/598188a40ebc5916ff64a21b):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 25363 W: 4658 L: 4545 D: 16160

LTC (http://tests.stockfishchess.org/tests/view/5981d59a0ebc5916ff64a229):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 75356 W: 9690 L: 9640 D: 56026

40/10 TC (http://tests.stockfishchess.org/tests/view/5980c5780ebc5916ff64a1ed):
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 19377 W: 3650 L: 3526 D: 12201

15+0 TC (http://tests.stockfishchess.org/tests/view/5982cb730ebc5916ff64a25d):
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 5913 W: 1217 L: 1069 D: 3627

This time management handles base time and movestogo cases separatelly. One can test one case without affecting the other. Also, increment usage can be tested separately without (necessarily) affecting sudden death or x moves in y seconds performance.

On stable machines there ar…

Supra 25 - UCI chess engine. New version

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Supra - UCI chess engines

Author: Pedro Mourao Correia   Website

Previous version chess engine Supra

RatingsJCER=1888,

Supra 25 download



Stockfish 17081711 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Marco Costalba

More:
Timestamp: 1502960640

Fix involuntary conversions of ExtMove to Move

The trick is to create an ambiguity for the
compiler in case an unwanted conversion to
Move is attempted like in:

ExtMove m1{Move(17),4}, m2{Move(4),17};

std::cout << (m1 < m2) << std::endl; // 1
std::cout << (m1 > m2) << std::endl; // 1(!)

This fixes issue #1204

No functional change. 

⭐⭐⭐   Stockfish 17081711 - download

Sayuri 2017.08.19 - new version chess engine UCI

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Sayuri - UCI chess engine

Author - Hironori Ishibashi

Sayuri previous versions

Rating JCER=1748

⏭ Sayuri 2017.08.19 download


Stockfish 17081710 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Marco Costalba

More:
Timestamp: 1502959946

Unify stats update()

Now that is a bit bigger makes sense to
unify some duplicated code.

No functional change. 

⭐⭐⭐   Stockfish 17081710 - download

Chess engine: Roc 0.9 (derived from Gull 3)

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Roc is a new chess engine, derived from Gull 3
Author: Demichev/Hyer

Rating JCER=3048
Roc 0.9 - download


Stockfish 17081709 - new version!

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Stockfish, chess engine UCI

Leader rating list JCER = 3331
🔬 Author: Lucasart

More:
Timestamp: 1502955164 

Use int16_t in History values 
Reduces memory footprint by ~1.2MB (per thread). 

Strong pressure: small but mesurable gain 
LLR: 2.96 (-2.94,2.94) [0.00,4.00] 
Total: 258430 W: 46977 L: 45943 D: 165510 

Low pressure: no regression 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 73542 W: 13058 L: 13026 D: 47458 

Strong pressure + LTC: elo gain confirmed 
LLR: 2.96 (-2.94,2.94) [0.00,4.00] 
Total: 31489 W: 4532 L: 4295 D: 22662 

Tested for crashing on overflow and after 70K games at STC we have only 4 time losses, possible candidate for an overflow. 

No functional change. 

⭐⭐⭐   Stockfish 17081709 - download

Ethereal 8.24 - UCI chess engine (for Windows and Android). New version!

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Ethereal - UCI chess engine

Rating JCER=2411

Author - Andy Grant

Ethereal 8.24 - download

EnkoChess 19.08.2017 - UCI chess engine. New version!

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EnkoChess - UCI engine
Homepage

Author - Evgeny Silchenko

EnkoChess 19.08.2017 - download



Another JCER test!

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Left - Acer i3
Right - Lenovo i7 and Samsung monitor

GUI - Arena



45 chess engines the letter G1 - download update update

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45 chess engines the letter G1 - download update
engines:gaia3.0.7z galjoen_v0.29.7z galjoen_v0.30.7z galjoen_v0.30.1.7z galjoen_v0.30.2.7z galjoen_v0.31.7z galjoen_v0.31.1.7z galjoen_v0.32.7z galjoen_v0.32.1.7z galjoen_v0.32.2.7z galjoen_v0.32.3.7z galjoen_v0.32.4.7z galjoen_v0.32.5.7z galjoen_v0.32.6.1.7z galjoen_v0.32.6.2.7z galjoen_v0.33.7z galjoen_v0.34.7z galjoen_v0.35.7z galjoen_v0.35.1.7z galjoen_v0.35.2.7z galjoen_v0.35.4.7z galjoen_v0.35.6.7z galjoen_v0.36.7z gandalf_7-beta.7z Gandalf6.0.7z garbochess.7z garbochess-3-ja.7z Gargamella.7z Gaviota 1.0.7z gaviota-0.85.1.7z gaviota-0.85-windows.7z Gaviota0.86.7z gchess4.7z Gedeone.7z Genesis.7z Gerbil.7z GerbilKM_02_ja.7z ges-132-ja.7z Ghost.7z ghost 3.1.7z Ghost2.0.2.7z ghost2.0.2x32.7z ghost2.0.2x64.7z ghost2_win32_v2_0_1.7z Ghost3 (Beta 20161015) 64bit.7z

161 chess engines the letter I - download update

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161 chess engines the letter I

Engines: ice.03.2750.7z ice.2.2240.7z ice.3.658.7z Ifrit_m1_7.7z ifrit-m16-ja.7z Igor6test.7z Igor6test2.7z Igorlast.7z Igorrit_0086v.7z Igorrit_0086v samer.7z Igorrit_0086v_Plus.7z Igorrit_0086v_Plus samer.7z Igorrit_0086v2.7z Igorrit_0086v2 samer.7z Igorrit_0086v4_w32.7z Igorrit_0086v5_x64_bs_1t.7z Igorrit_0086v5_x64_bs_2t.7z Igorrit_0086v5_x64_bs_fix.7z Igorrit_0086v6_x64_3t.7z Igorrit_0086v6_x64_RBw.7z Igorrit_0086v7_w32.7z Igorrit_0086v7_x64.7z Igorrit_0086v8_w32.7z Igorrit_0086v8_x64.7z Igorrit_0086v9_w32.7z Igorrit_0086v9_x64.7z Igorrit0.086v4x64v2.7z Igorrit-0.086v6fixed.7z Igorrit-0.086v6fixedPeterpan and Sentinel.7z Igorrit-0.086v6ShortNames.7z Igorrit-0.086v6ShortNames Peterpan.7z Igorrit-0.086v6w32added.7z Igorrit0.086w32VS2008.7z Igorrit0.086w32VS2008 Peterpan.7z Igorrit-0[1].086v6_Sentinel.7z Igorrit-0[1].086v6fix.7z Igorrit086v4_x64_bs.7z Igorrit086v5_x64_bs.7z Igorritv086v6Mingw64.7z Igorritv4x64v3.7z Igorritx64windows.7z iichess_r19_ ja.7…

Chess engine: Raubfisch X35f

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Raubfisch is an engine derived rom Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler)
Rating JCER - 3341

Raubfisch X35f - download