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

Monday, April 24, 2017

Stockfish 17042409 - new version!


Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Marco Costalba

More:

Timestamp: 1493020184 

Assorted code style issues 
I have removed the check for pieceCount[PAWN] > FILE_NB 
because totally useless. 

No functional change. 

⭐⭐⭐   Stockfish 17042409 - download



First Test Wasp 2.0, 2017.04.22 - 2017.04.23


Engine Jcer Score Wasp 2.0 Chg +/-/=
1: Wasp 2.0 2751 41.5 / 100 XXXXXXXXXX +90 (+26 -43 =31)
2: Houdini 1.5a x64 3080 9.0 / 10 11=111=111 +2 (+8 -0 =2)
3: Andscacs 0.90 3083 8.5 / 10 1=11111==1 -3 (+7 -0 =3)
4: Fritz 15 3035 8.0 / 10 =1=1110111 -4 (+7 -1 =2)
5: Fizbo 1.9 3123 8.0 / 10 1110111011 -9 (+8 -2 =0)
6: Crafty 25.2 x64 2838 7.5 / 10 =11=1=11== +13 (+5 -0 =5)
7: Arasan 20 2920 6.5 / 10 ===01=11=1 -8 (+4 -1 =5)
8: EXchess 7.97b 2802 3.5 / 10 =00=0==10= -23 (+1 -4 =5)
9: Wasp 1.25 2751 3.5 / 10 =10==00==0 -15 (+1 -4 =5)
10: Amoeba 2.4 2637 2.5 / 10 0=000001== -9 (+1 -6 =3)
11: Ethereal 8.12 2463 1.5 / 10 0000010=00 +0 (+1 -8 =1)





Tournament: First Test Wasp 2.0, 2017.04.22 - 23Temp: 3'+ 3"
Hardware: Intel Core i7-4710MQ @ 2.50GHz 7,9 GB MemorySystem: Windows 10 x64
100 Tournament games downloadBookPerfect 2016
161.651 JCER Games download (until 31.12.2016)GUI:Fritz 12
15.913 JCER games download (from 01.01.2017)TableScid vs PC
Games, engines, book - downloadJCER League

Stockfish 17042317_VandeVondele - new version!



Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Joost VandeVondele

More:

Timestamp: 1492961875 
Sort moves partially: linear depth dependence 

STC: http://tests.stockfishchess.org/tests/view/58f98d260ebc59035df33d5e 
LLR: 2.96 (-2.94,2.94) [0.00,5.00] 
Total: 58958 W: 10862 L: 10485 D: 37611 

LTC: http://tests.stockfishchess.org/tests/view/58fa45d40ebc59035df33d86 
LLR: 2.95 (-2.94,2.94) [0.00,5.00] 
Total: 18607 W: 2427 L: 2251 D: 13929 

Bench: 6065528 
Closes #1079 

⭐⭐⭐   Stockfish 17042317_VandeVondele - download



Rivista Scacchi n.56



Rivista Scacchi n.56 - pdf file


Stockfish 17042317 - new version!



Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: IIvec 

More:

Timestamp: 1492959843 
King safety parameters improved 

STC: 
LLR: 2.97 (-2.94,2.94) [0.00,4.00] 
Total: 58648 W: 10883 L: 10524 D: 37241 

LTC: 
LLR: 2.95 (-2.94,2.94) [0.00,4.00] 
Total: 52546 W: 7131 L: 6844 D: 38571 

Bench 6121479 
Closes #1078 

⭐⭐⭐   Stockfish 17042317 - download



Taltos rev118 wins 7 League JCER edition 02/2017, 2017.04.13 - 2017.04.20



Tournament:7 League JCER edition 02/2017, 2017.04.13 - 20 Temp: 3'+ 3"
Hardware: Intel Core i5-4460 CPU @ 3.20GHz with 7,9 GB Memory
System: Windows 10 x64
760 Tournament games download
Book: Perfect 2016
161.651 JCER Games download (until 31.12.2016)
GUI: Arena 3.5.1
15.913 JCER games download (from 01.01.2017)
Table created: Scid vs PC
Games, engines, book - download
JCER League

Sunday, April 23, 2017

The Tarrasch Chess GUI - new version: Tarrasch 3.02a,

Tarrasch is an extremely easy to use free chess program for Windows.

Tarrasch comes with free chess engines, so you get everything you need to enjoy computer chess with one simple free download.

Tarrasch is designed to to make it as easy as possible to perform some basic chess activities; Play a game against a chess engine, with either color, from any position, with a time handicap if desired.
Setup an arbitrary position and get the engine to analyse that position. View and play through the analysis provided by the engine.
Create and edit .pgn files (standard chess documents). Enter variations easily (just make moves anywhere). Enter and edit comments easily (just click anywhere and start typing). Promote and demote variations and even comments (so comments can change to moves and vice-versa – great for picking text off a website)..


News - Tarrasch 3.02
This version is a bug fix release, correcting all problems discovered in the first quarter of 2017. Sadly this includes some significant problems, and upgrading to this version is strongly recommended. Change log;

Annoying problems with editing games with many variations and comments (so that the edit window needs to scroll) fixed. The edit cursor no longer jumps to bottom line, and scroll position is preserved if you switch tabs.
A side effect of the fix above is that text editing (for comments) is faster than ever, faster than previous V3 versions and much faster than V2.
Introduce Tarraschbase - Kingbase lite 2016-03 plus more recent games from Twic. This is hopefully a temporary measure until Kingbase is updated again.
Screen adjustment for improved games dialog behaviour on commodity 720p laptops.
Kibitz box is dynamically scaled to show all four lines - not always 99 pixels high.
Deleting games in games dialogs behaves better.
Stalemate and Checkmate positions no longer sent to engine for analysis.
Bug fixed: (Bug was; Cannot save recalculated ECOs to file.)
Bug fixed: (Bug was; Modify game -> make new tab -> go back to game -> undo changes game still shows as modified even though undo stack correctly shown as empty).
Inappropriate sharing of pgn games dialog help screen with clipboard and session games dialogs corrected.

Long overdue update from Komodo V3 to Komodo V8 (apologies for not noticing that the Komodo free version has changed dramatically).


Tarrasch Chess GUI download
 

Stockfish 17042316 - new version!



Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Joost VandeVondele 

More:

Timestamp: 1492959568 

Use int instead of Value for history related stats. 
history related scores are not related to evaluation based scores. 
For example, can easily exceed the range -VALUE_INFINITE,VALUE_INFINITE. 
As such the current type is confusing, and a plain int is a better match. 

tested for no regression: 
STC: 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 43693 W: 7909 L: 7827 D: 27957 

No functional change. 
Closes #1070 

⭐⭐⭐   Stockfish 17042316 - download



Saturday, April 22, 2017

First Test Amoeba 2.4, 2017.04.21 - 2017.04.22


Engine Jcer Score Amoeba 2.4 Chg +/-/=
1: Amoeba 2.4 2637 38.5 / 100 XXXXXXXXXX +90 (+25 -48 =27)
2: Protector 1.9.0 2961 9.5 / 10 1111111=11 +7 (+9 -0 =1)
3: Andscacs 0.90 3083 9.5 / 10 111=111111 +6 (+9 -0 =1)
4: SmarThink 1.97 2851 8.5 / 10 011111111= +7 (+8 -1 =1)
5: Pedone 1.4.1 2864 7.5 / 10 01=11=11=1 -4 (+6 -1 =3)
6: Texel 1.07a9lazy 2975 7.5 / 10 =11==111== -14 (+5 -0 =5)
7: Wasp 1.25 x64 2751 5.5 / 10 011=01==01 -11 (+4 -3 =3)
8: MinkoChess 1.3 2732 4.5 / 10 010=1=1=00 -18 (+3 -4 =3)
9: Scorpio 2.77 2667 4.5 / 10 01===10001 -10 (+3 -4 =3)
10: Amoeba 2.3 2637 3.0 / 10 00==00=01= -20 (+1 -5 =4)
11: K2 0.87 2413 1.5 / 10 =000=000=0 -6 (+0 -7 =3)




Tournament: JCER Test, 2017.04.15Temp: 3'+ 3"
Hardware: Intel Core i7-4710MQ @ 2.50GHz 7,9 GB MemorySystem: Windows 10 x64
100 Tournament games downloadBookPerfect 2016
161.651 JCER Games download (until 31.12.2016)GUI:Fritz 12
15.913 JCER games download (from 01.01.2017)TableScid vs PC
Games, engines, book - downloadJCER League

Chess engine: Freccia 0.0.2.5

Freccia 0.0.2.5 is software has a console interface only and were a complete rewrite of Raffaela, all in assembly. It uses some 64 bit feature but it is a 32 bit program. 

Author - Stefano Gemma



Stockfish 17042020b - new version!



Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Joost VandeVondele 

More:

Timestamp: 1492712891 
simplify logic for history based pruning 

STC 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 34255 W: 6292 L: 6194 D: 21769 

LTC 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 89914 W: 11769 L: 11739 D: 66406 

Bench: 6581936 
Closes #1066 

⭐⭐⭐   Stockfish 17042020b - download



Venom 4.3 wins JCER Strong Chess Engines, 2017.04.16 - 2017.04.19

P Engine Jcer Score Veno Symp Matr Stoc Sanj Komo Ultr Roc Ands Fizb
1: Venom 4.3 3374 24.5 / 36 XXXX =1== ==== ==0= 1=0= 1=11 ==11 =111 =111 11==
2: Symphysodon 050317 3343 24.5 / 36 =0== XXXX ==== =0=0 ==== 11=1 1111 1=11 1=1= 1111
3: Matrix D 3409 23.5 / 36 ==== ==== XXXX ==1= ==== 11=1 ==== 11== 11=1 =1=1
4: Stockfish 17040916 3405 23.0 / 36 ==1= =1=1 ==0= XXXX ==== ===0 =111 ==11 ==1= =111
5: Sanjib 5.0 3285 21.0 / 36 0=1= ==== ==== ==== XXXX ===1 ==1= ==1= 1=11 ====
6: Komodo 8 3171 15.0 / 36 0=00 00=0 00=0 ===1 ===0 XXXX 010= ==1= =1== 1==1
7: Ultron 5.0 3075 14.0 / 36 ==00 0000 ==== =000 ==0= 101= XXXX ==== 0=0= 11=1
8: Roc 0.2 3138 12.0 / 36 =000 0=00 00== ==00 ==0= ==0= ==== XXXX =10= ==01
9: Andscacs 0.90 3083 11.5 / 36 =000 0=0= 00=0 ==0= 0=00 =0== 1=1= =01= XXXX 00==
10: Fizbo 1.9 3123 11.0 / 36 00== 0000 =0=0 =000 ==== 0==0 00=0 ==10 11== XXXX



Tournament: JCER Test, 2017.04.15Temp: 3'+ 3"
Hardware: Intel Core i7-4710MQ @ 2.50GHz 7,9 GB MemorySystem: Windows 10 x64
180 Tournament games downloadBookPerfect 2016
161.651 JCER Games download (until 31.12.2016)GUI:Fritz 12
15.913 JCER games download (from 01.01.2017)TableScid vs PC
Games, engines, book - downloadJCER League

Wasp 2.0 - UCI chess engine. New version!


Wasp - UCI chess engine

Author: John Stanback
Rating JCER=2746


Wasp it is a complete 
rewrite of previous chess engine called Zarkov.

Wasp 2.0 - download



Stockfish 17042020 - new version!



Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Joost VandeVondele 

More:

Timestamp: 1492712341 

Partial insertion sort the order of elements returned by std::partition is implementation defined (since not stable) and could depend on the version of libstdc++ linked. 
As std::stable_partition was tested to be too slow (http://tests.stockfishchess.org/tests/view/585cdfd00ebc5903140c6082). 
Instead combine partition with our custom implementation of insert_sort, which fixes this issue. 
Implementation based on a patch by mstembera (http://tests.stockfishchess.org/tests/view/58d4d3460ebc59035df3315c), which suggests some benefit by itself. 
Higher depth moves are all sorted (INT_MIN version), as in current master. 

STC: 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 33116 W: 6161 L: 6061 D: 20894 

LTC: 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 88703 W: 11572 L: 11540 D: 65591 

Bench: 6256522 

Closes #1058 
Closes #1065  

⭐⭐⭐   Stockfish 17042020 - download



Thursday, April 20, 2017

Chess Engine: BrainFish 170418

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 170418 - download


Stockfish 17041719 - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Stefano Cardanobile

More:

Timestamp: 1492450717 

Update Readme.md 
Update number of threads. 

Closes #1072 

⭐⭐⭐   Stockfish 170401719 - download



Chess engine: Raubfisch ME 262 _GTZ13e


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

Rating JCER - 3393




Wednesday, April 19, 2017

Stockfish 17041718_VandeVondele - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: VandeVondele   

More:

Timestamp: 1492446327 

Prefer std::find over a hand-coded loop tested for no regression. 

STC: 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 37378 W: 6649 L: 6556 D: 24173 

No functional change. 

Closes #1071 

⭐⭐⭐   Stockfish 170401718_VandeVondele - download



Amoeba 2.4 - UCI chess engine. New version!

Amoeba - UCI chess engine (D language)

Amoeba is a bare chess engine designed to communicate with a chess GUI (Arena) via the UCI protocol.


Rating JCER=2637


➽ Amoeba 2.4 - download



Stockfish 17041718_VoyagerOne - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: VoyagerOne   

More:

Timestamp: 1492446130 

Move-Count Formula Tweak 

STC: 
LLR: 3.18 (-2.94,2.94) [0.00,4.00] 
Total: 55004 W: 10289 L: 9930 D: 34785 

LTC: 
LLR: 2.96 (-2.94,2.94) [0.00,4.00] 
Total: 48184 W: 6401 L: 6128 D: 35655 

Bench: 5960754 

⭐⭐⭐   Stockfish 170401718_VoyagerOne - download


Chess engine: Symphysodon 190417


Rating JCER=2464

Author - Jose Perez



Tuesday, April 18, 2017

Stockfish 17041718 - new version!

Stockfish, chess engine UCI
Leader rating list JCER = 3405
πŸ”¬ Author: Stefano80  

More:

Timestamp: 1492445976 

Remove cap from space score contribution and increase bonus 

STC 
LLR: 2.96 (-2.94,2.94) [-3.00,1.00] 
Total: 58462 W: 10615 L: 10558 D: 37289 

LTC 
LLR: 2.95 (-2.94,2.94) [-3.00,1.00] 
Total: 65061 W: 8539 L: 8477 D: 48045 

It is worth noting that an attempt to only increase the bonus passed STC but failed LTC, and an attempt to remove the cap without increasing the bonus is still running at STC, but will probably fail after more than 100k. 

Bench: 6188591 
Closes #1063 

⭐⭐⭐   Stockfish 170401718 - download