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Showing posts from August, 2016

Sting sf 7.3 - chess engine UCI. New version

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Sting sf - UCI chess engines (based on Stockfish)

Previous version chess engine Sting sf

Author - Marek Kwiatkowski

Rating JCER=3040

Sting sf7.3 download



Shark 160831bf (Stockfish clone)

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Chess engine: CroChess (clone Stockfish)

Chess engine: asmFish 2016-08-30

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Best chess engine: Stockfish 16082922. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Stefan Geschwentner 
Information on the compilation:
Timestamp: 1472501703  Tweak probcut threshold  Use better threshold for capture move generation. 
STC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 23265 W: 4415 L: 4188 D: 14662 
LTC:  LLR: 2.95 (-2.94,2.94) [0.00,4.00]  Total: 36618 W: 5083 L: 4836 D: 26699 
bench: 7030088 
Stockfish 16082922  - download

Chronos 1.9.9 wins JCER Amateur League B, edition 01/2016, 2016.08.24 - 2016.08.30

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Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit
612 tournament games download, GUI-Arena 3.5.1,  134.382 JCER games download,  
Book: Perfect 2015, Table created - Scid vs PC 


Stockfish - 2014 compilations (57 files) - update

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64 engines the letter T(2) - download update

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66 engines the letter T(2)

Thorshammer 229, Tigran 24n, Tikov, Timea-4a18, Tinapa1.01, Tippy Chess 2010a, TJchess 1.1, Toga II 280513, Toga Returns 1.0, Toga Returns 1.1, TogaII 20SE, toga-30, toga-II-20, Toltec, Toltec 2, Tommy2.45b, TonysChess002, Tornado 4.88, TornadoChess 150504, TornadoChess 5, TornadoChess 6, Tossa, Trace, trappybeowulf rev11, Trex, tscp-181e, tscp-rebel. ttychess, tucano.100, tucano.104, tucano.400, Tucano.5.0, tucano.600, 
tucano2.0, tucano300, tunable_rodent, tursas-02, TuxedoCat.0.0.1, twisted20100131x, TWISTEDLOGIC 0.15, TWISTEDLOGIC 0.16, TWISTEDLOGIC 0.17, TWISTEDLOGIC 0.20, TwistedLogic 0.25, TWISTEDLOGIC 0.37o, TWISTEDLOGIC 0.37z1, TWISTEDLOGIC 0.45g, TWISTEDLOGIC 0.45g5, TWISTEDLOGIC 0.57e3, TWISTEDLOGIC 0.85, TWISTEDLOGIC 0.85x3x1, TWISTEDLOGIC 0.87x5, TWISTEDLOGIC 0.99x, TWISTEDLOGIC 065e35, TWISTEDLOGIC 065e37, TWISTEDLOGIC 080b26, TWISTEDLOGIC 20070602, TWISTEDLOGIC 20070706, TWISTEDLOGIC 20070915, TWISTEDLOGIC 20071202x, TWISTEDLOGIC 20090922, typho…

Komodo 9.2 wins 1 League Jurek Chess Engines Rating, edition 07/2016 (2016.08.23-29)

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Temp 3' + 3" Hardware: Intel Core i7-4710MQ CPU @ 2.50GHz with 7,9 GB Memory , Windows 10 64-bit
612 tournament games download, GUI-Fritz 12,  134.382 JCER games download
Book: Perfect 2015, Table created - Scid vs PC

Fizbo 1.8 - UCI chess engine. New version!

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Fizbo - UCI chess engine

Fizbo - homepage


JCER=3010

Author - Youri Matiounine


Fizbo 1.8 download


Best chess engine: Stockfish 2016.08.27-28 - 8 new versions!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Authors - Marco Costalba (x3), Hixm, Gamander, Stephane Nicolet, Alain Savard, Andrew Grant.
Information on the compilation:

Stockfish 2016.08.27-28 (8 versions)  - download


Best chess engine: Stockfish 16082509. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Marco Costalba
Information on the compilation:
Timestamp: 1472111510 
Reformat stats update 
Rewritten in a way to have explicit in the search  the bonus/penalty we apply: hopefully this will lead  to further simplification/fix of current rather messy  stats update code.  No functional change. 
Stockfish 16082509  - download

Ethereal rev 7.76 - UCI chess engine. New version!

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Ethereal - UCI chess engine

Author - Andy Grant

About:
Ethereal is a UCI-compliant chess engine. It uses the traditional alpha-beta framework in addition to a variety of pruning, reduction, extension, and other improvements. Some of those improvements include Static Null Move Pruning, Null Move Pruning, Node Razoring, Depth base Futility Pruning, Best-Case Delta Pruning, Current-Move Delta Pruning, Late Move Reductions, Check extensions, and the use of various Transposition Tables. Ethereal generates moves using the Fancy Magic BitBoard technique, but also uses a redundant 64-length array to store pieces for easier lookup. 
Ethereal is an original engine aside from the Piece Square Tables (currently using Toga II's tables). It is greatly influenced from Crafty, Stockfish, TSCP, MadChess, and Fruit. Ethereal is a hobby project, but more importantly it is an active resume.

Ethereal rev 7.76 - download


Ippos 1.20 - UCI chess engine. New version!

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Ippos - UCI chess engine (based on Ippolit 0.80)

Ippos 1.20 - download

Octochess r7533 wins JCER Amateur League A, edition 01/2016, 2016.08.18 - 2016.08.23

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Temp 3' + 3" Hardware: Intel Core i3-3217U CPU @ 1.80GHz with 3,9 GB Memory , Windows 10 64-bit
612 tournament games download, GUI-Arena 3.5.1134.382 JCER games download
Book: Perfect 2015, Table created - Scid vs PC 

Best chess engine: Stockfish 16082408. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - VoyagerOne
Information on the compilation:
Timestamp: 1472019992 
Refutation penalty on captures 
Apply refutation penalty for prior PV quiet move on captures 
LTC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 8208 W: 1153 L: 1008 D: 6047  http://tests.stockfishchess.org/tests/view/57bc5a9f0ebc59030fbe47b5 
Only LTC because a very similar patch already passed STC + LTC 
bench: 7038730 
Stockfish 16082408  - download

Floyd 0.9 - UCI chess engine. New version!

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Floyd - UCI chess engine
( for Windows, Linux and Mac).

Homepage

Rating JCER=2380

Author- Marcel van Kervinck


Version 0.9: main changes:Gained approximately 180 elo at fast time controlsBetter handling of zugzwang positionsFixed illegal moves deep in PV (reported by Dirk-Jan D.)Full solution for the "0readyok" problem: also don't split info linesAble to abort search in Python module (e.g. by Ctrl-C) 
Under the hood:Added history counters for move orderingImproved move ordering for killersImproved null move pruning/reductions (aka verification)Added delta pruningAdded hanging piece evaluationAdded basic futility pruning, razoring and stand pat pruningSome minor evaluation weight tuningSimplified UCI move printingEliminated spurious "Illegal move" in debug mode 
Floyd 0.9 - download

Best chess engine: Stockfish 16081908_b. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - VoyagerOne
Information on the compilation: Timestamp: 1471589958  Simplify IID 
STC:  LLR: 2.96 (-2.94,2.94) [-3.00,1.00]  Total: 30468 W: 5687 L: 5582 D: 19199  http://tests.stockfishchess.org/tests/view/57b1ddd80ebc591c761f63e2 
LTC:  LLR: 2.95 (-2.94,2.94) [-3.00,1.00]  Total: 87406 W: 11756 L: 11725 D: 63925  http://tests.stockfishchess.org/tests/view/57b212590ebc591c761f63f9 
bench: 6554900 
Stockfish 16081908_b  - download

Sayuri 2016.08.20 - new version chess engine UCI

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Sayuri - UCI chess engine

Author - Hironori Ishibashi

Sayuri previous versions

JCER=1718

Sayuri 2016.08.20 download




Stockfish 16081514 wins Super League Jurek Chess Engines Rating, edition 07/2016 (2016.08.17-23)

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Temp 3' + 3" Hardware: Intel Core i7-4710MQ CPU @ 2.50GHz with 7,9 GB Memory , Windows 10 64-bit
612 tournament games download, GUI-Arena 3.5.1134.382 JCER games download
Book: Perfect 2015, Table created - Scid vs PC 


Best chess engine: Stockfish 16081908. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - VoyagerOne
Information on the compilation:
Timestamp: 1471589414  Do LMR on captures 
STC:  LLR: 2.95 (-2.94,2.94) [0.00,5.00]  Total: 5361 W: 1086 L: 936 D: 3339  http://tests.stockfishchess.org/tests/view/57b31b0f0ebc591c761f643d 
LTC:  LLR: 2.96 (-2.94,2.94) [0.00,5.00]  Total: 54694 W: 7591 L: 7287 D: 39816  http://tests.stockfishchess.org/tests/view/57b3442b0ebc591c761f6450 
bench: 6881120 
Stockfish 16081908  - download

pedantFish 2016.08.12 and 2016.08.20

Best chess engine: Stockfish 16081810_costalba . New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Marco Costalba
Information on the compilation: Timestamp: 1471509656 
Remove a stale assignment 
No more used after previous patch.  Spotted by Jekaa .  No functional change. 
Stockfish 16081810_costalba  - download

Chess engine: asmFish 2016-08-20

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Best chess engine Stockfish 16081810. New version!

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Stockfish - chess engines UCI

Previous version chess engine Stockfish

Author compilation - Stefano80
Information on the compilation:
Timestamp: 1471508216 
Retire pawn span  Retire pawn span and replace with pawn count in evaluate_scale_factor. 
STC:  LLR: 2.95 (-2.94,2.94) [-3.00,1.00]  Total: 26482 W: 4929 L: 4818 D: 16735 
LTC:  LLR: 2.95 (-2.94,2.94) [-3.00,1.00]  Total: 61938 W: 8400 L: 8335 D: 45203 
Bench: 7662861 
Stockfish 16081810  - download

Kvetka 3.28.1 - new version chess GUI

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Kvetka's main features Friendly user interface. Uses comparably small area on the screen.

Works with all UCI engines for analysing the game. The strongest (as we believe) engine Rybka supports this format.
One of the fastest free engines – Stockfish – is distributed together with Kvetka.

It intends for analysing games only. You can't play chess with Kvetka, but we are thinking about it. PGN and FEN support.
You can easily add the games via the clipboard. Supports different fonts and encodings that are used by chess sites. It is free!

Kvetka page download,