Wikispaces : chessprogramming - items matching description

Alfil

GerdIsenberg — Thu, 03 Sep 2015 21:10:22 GMT

Home * Engines * Alfil

		AlfilChess, (Alfil Chess, Alfil) a chess program by Enrique Sánchez Acosta, written in C++, first incorporated as chess engine of TotalChess 2000, and subsequently since 2001 commercially released as Alfil Chess I and Alfil Chess 2.2 by Hollywood Publishing ^[1]. Alfil has become a free engine under Windows, compliant with UCI, and under Linux, compliant with the Chess Engine Communication Protocol. More recent versions have a parallel search with multiple threads and are able to probe Nalimov Tablebases ^[2], and were ported to Android ^[3].
Alfil for Android ^[4]

C# Engine Project

The C# Engine Project, at first dubbed Alfil 15 and released as open source in 2015, started from Stockfish v5 and various C# ports such as Portfish, and over the time incorporated ideas and knowledge gained from over 10 years of Alfil development, and from other open source engines ^[5]. Alfil 15 was registered for TCEC Season 8, when it was disqualified after its first game versus Pedone, since it could not disable its internal book, not complying with the TCEC rules ^[6]. After that incident, and due to discussions on Alfil's 15 origins in computer chess forums ^[7], the author made these more explicit on September 02, 2015, renamed the program, and invited everyone to collaborate ^[8].

Selected Games

TCEC - Stage 1 - Season 5, Alfil 13.1 - Arasan 16 ^[9]

[Event "TCEC - Stage 1 - Season 5"]
[Site "http://www.tcec-chess.net"]
[Date "2013.09.05"]
[Round "4.16"]
[White "Alfil 13.1"]
[Black "Arasan 16"]
[Result "1/2-1/2"]
 
1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 O-O 6.Bd3 Na6 7.e5 dxe5 8.fxe5
Nd7 9.Na4 c5 10.c3 Rb8 11.Bf4 b5 12.e6 bxa4 13.exd7 Qxd7 14.Bxb8 Nxb8
15.O-O cxd4 16.Nxd4 Bxd4+ 17.cxd4 Qxd4+ 18.Kh1 Be6 19.Rc1 Qxb2 20.Bc4
Bxc4 21.Rxc4 Qxa2 22.Rxa4 Qe6 23.Re1 Qf6 24.Rxa7 Nc6 25.Rc7 Rd8 26.Qf3
Ne5 27.Qxf6 exf6 28.Rc2 Kg7 29.g3 Rd5 30.Kg2 f5 31.Ree2 g5 32.Red2 Rb5
33.Ra2 h6 34.Ra7 f4 35.gxf4 gxf4 36.Ra4 f3+ 37.Kf2 Rb3 38.Rad4 h5 39.h3
Kg6 40.Rd5 Kf5 41.Rd1 f6 42.R5d2 Rb4 43.Rd4 Rb7 44.Rg1 Rb2+ 45.Kg3 Kg5
46.h4+ Kg6 47.Rf4 Rb3 48.Re4 Ng4 49.Rxg4+ hxg4 50.Kxg4 f2 51.Rf1 f5+
52.Kf4 Rb4+ 53.Kf3 Rxh4 54.Rxf2 1/2-1/2

Forum Posts

2007 ...

Alfil 7.5 : 2293 by Patrick Buchmann, CCC, May 20, 2007
Alfil 8 beta 0.4 : 2472 by Patrick Buchmann, CCC, November 01, 2007
Alfil 8.1 : 2464 by Patrick Buchmann, CCC, January 21, 2008
Alfil 8.1.1 SIMD by Tony Thomas, CCC, February 25, 2008

2010 ...

Alfil 11 MT by esacosta, CCC, November 29, 2011
Alfil on FICS by esacosta, CCC, December 15, 2011

2015 ...

Alfil 15.4 C# (beta 17) by Enrique Sánchez, CCC, April 21, 2015
Alfil 15.7 by Enrique Sánchez, CCC, July 12, 2015
Has Alfil 15.8 been withdrawn? by Gabor Szots, CCC, August 29, 2015

External Links

Chess Engine

Misc

Alfil - Wikipedia.es (Spanish)
Alfil (chess) from Wikipedia

References

What links here?

Page	Date Edited
Alfil	Sep 3, 2015
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Enrique Sánchez Acosta	Apr 22, 2015
TCEC Season 5	Jun 2, 2014
TCEC Season 6	Dec 2, 2014
TCEC Season 7	Jan 23, 2015

Up one level

Android-Chess

GerdIsenberg — Thu, 02 Jun 2016 13:48:24 GMT

Home * Engines * Android-Chess

		Android-Chess, an open source chess application for Android, written by Jeroen Carolus, released under the MIT License. Android-Chess consists of a Java chess GUI and an engine. The engine was initially written in Java for Jeroen's pruning research and M.Sc. thesis ^[1], and has been ported to C++ and communicates with the GUI via JNI.
Android-Chess ^[2]

Description

Android-Chess is a bitboard engine using rotated bitboards to determine sliding piece attacks, and does not take advantage of the outer square optimization using an 8-bit occupied index with four lookup tables of 256*64*8 or 128 KiB each, thus 1/2 MiB in total. Alpha-beta is embedded inside an iterative deepening loop without aspiration. Evaluation considers material and various pawn structure and piece terms.

External Links

References

^ Jeroen Carolus (2006). Alpha-Beta with Sibling Prediction Pruning in Chess. Master's thesis, pdf
^ andriod-Chess

What links here?

Page	Date Edited
Android-Chess	Jun 2, 2016
Engines	Mar 10, 2018
Jeroen Carolus	Jun 2, 2016
Mathematician	Apr 9, 2018

Up one Level

Bagatur

GerdIsenberg — Sat, 10 Sep 2016 21:15:53 GMT

Home * Engines * Bagatur

		Bagatur, a free open source chess program under the Eclipse Public License ^[1] written in Java by Krasimir Topchiyski from Bulgaria. The project has started around year 2000. The engine is quite strong, for example the ELO of version 1.4d is about 2500 based on CCRL ^[2] . The open source project is hosted at GitHub ^[3] , where one can find everything relevant like downloads and java source code of the program. Under Windows and Linux the program hasn't its own user interface and uses arbitrary UCI user interfaces like Arena. Under Android there is a game called Chess Art For Kids ^[4] with an own GUI, which incorporates Bagatur as a chess engine.
One of Bagatur's Logos

Etymology

Technical Information

Etymology

Bagatur (βαγατουρ or βογοτορ) is a higher rank of proto-Bulgarian warrior. According to some authors the word comes from Turkic (bagadur) and literally means brave, brave man. According to the same in the Russian language will pass as Богатыри - hero.

Technical Information

The programming code is structured in multiple Java modules / APIs, which could be used separately, including modules for experiments with Artificial Intelligence and Machine Learning. More details could be found inside the readme files of each sub-project of the programming code ^[5]. Here are some of the algorithms and heuristics applied in Bagatur:

Selectivity

Tables

Misc
- Board Representation - mix between Arrays and Bitboards
- Opening Book
- Gaviota endgame tablebases

Forum Posts

BagaturChess -an interesting chess engine by Ruxy Sylwyka, CCC, August 11, 2011
BagaturChess 1.2c (Java) by Krasimir Topchiyski by Ruxy Sylwyka, CCC, December 04, 2011
Check Latest Bagatur Version! by George Speight, CCC, September 15, 2012

External Links

Chess Engine

Misc

References

What links here?

Page	Date Edited
Bagatur	Sep 10, 2016
Chess Art For Kids	Sep 13, 2016
Engines	Mar 10, 2018
Krasimir Topchiyski	Sep 9, 2016

Up one Level

Betsabe

GerdIsenberg — Sun, 23 Jul 2017 08:03:33 GMT

Home * Engines * Betsabe

		Betsabe II, (Betsabe, Betsabé II) a Chess Engine Communication Protocol compliant open source chess engine under the GPL written by Juan Benitez in C, able to run under Windows, Linux, Mac OS and Android platforms. Betsabe II is successor of Betsabe, which already played various Spanish Computer Chess Championships in the 90s, notably the SCCC 1993 where it became first Spanish Champion with a 100% score, and the SCCC 1994 as runner-up behind Zeus II. Betsabe was initially based on Dieter Steinwender and Chrilly Donninger's program Minimax ^[1], but differences in search and evaluation are substantial.
Betsabé ^[2]

Description

Board Representation

Betsabe II maintains a 10x12 board as internal board representation and to generate moves. Definition of (part of) the initial position ^[3]:

const int Tablero_Inicio[120] =  {
FUERA, FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA, FUERA,
FUERA, FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA, FUERA,
FUERA,  T_B,    C_B ,   A_B ,   D_B ,   R_B ,   A_B ,   C_B ,   T_B,  FUERA,
FUERA,  P_B,    P_B ,   P_B ,   P_B ,   P_B ,   P_B ,   P_B ,   P_B,  FUERA,
FUERA, VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO, FUERA,
FUERA, VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO, FUERA,
FUERA, VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO, FUERA,
FUERA, VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO,  VACIO, FUERA,
FUERA,  P_N ,   P_N ,   P_N ,   P_N ,   P_N ,   P_N ,   P_N ,   P_N,  FUERA,
FUERA,  T_N,    C_N ,   A_N ,   D_N ,   R_N ,   A_N ,   C_N ,   T_N,  FUERA,
FUERA, FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA, FUERA,
FUERA, FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA,  FUERA, FUERA};

Search

Betsabe II applies PVS with transposition table inside an iterative deepening fractional ply framework in conjunction with mate distance pruning, IID, adaptive null move pruning, LMR, razoring, futility pruning, SEE pruning in quiescence, and check- and capture extensions with transitions to pawn endings. Move ordering is enhanced by history- and killer heuristic with two ordinary killer moves and one mate killer per ply.

Evaluation

The evaluation might be lazy using material and piece-square tables with respect to bounds, and otherwise considers mobility, pawn structure, king safety and various piece terms.

Selected Games

SCCC 1999, round 7, Betsabe - Genesis ^[4]

[Event "SCCC 1999"]
[Site "Parets del Valles"]
[Date "29.12.99"]
[Round "7"]
[White "Betsabe"]
[Black "Genesis"]
[Result "1-0"]
 
1.d4 e6 2.e4 d5 3.Nc3 Bb4 4.e5 Bxc3+ 5.bxc3 c5 6.Qg4 g6 7.Nf3 f5 8.Qg5 Qc7 
9.Qd2 Nc6 10.Ba3 b6 11.Rb1 Bb7 12.Bd3 Nge7 13.O-O c4 14.Be2 h6 15.Rb2 Qd7 
16.Rfb1 g5 17.h3 O-O-O 18.Nh2 Ng6 19.Bd6 Nf4 20.Bf3 Qf7 21.Nf1 Rxd6 22.exd6 
Rh7 23.Ng3 Qd7 24.Ne2 Nxe2+ 25.Qxe2 Qxd6 26.a4 Re7 27.Ra1 e5 28.Qd2 e4 29.Bh5 
Na5 30.Rba2 f4 31.Re1 Kb8 32.Qc1 Ka8 33.Qb2 e3 34.Raa1 exf2+ 35.Kxf2 Qf6 
36.Rxe7 Qxe7 37.Re1 Qd7 38.Re8+ Bc8 39.Rf8 Qe6 40.Bg4 Qe3+ 41.Kf1 Kb7 42.Bxc8+ 
Kc7 43.Bg4 Nc6 44.Rc8+ Kb7 45.Rxc6 Kxc6 46.Qb5+ Kb7 47.Qxd5+ Kc7 48.Qd7+  
1-0

Forum Posts

New engine - Betsabé II 1.0 by Tony Mokonen, Winboard Forum, February 18, 2011
Betsabe II 1.47 by Graham Banks, CCC, August 12, 2014
Betsabe II 1.75 released by Graham Banks, CCC, July 22, 2017

External Links

Chess Engine

Index of /chess/engines/Jim Ablett/BETSABE II hosted by Kirill Kryukov
Mac Chess Engines Repository hosted by Julien Marcel
Betsabe II 1.30 64-bit in CCRL 40/40

Misc

References

^ betsabe-II-109-ja-jm/readme.txt
^ Bathsheba holding King David's letter by Willem Drost, 1654, Louvre Museum, Bathsheba from Wikipedia
^ data.h
^ Spanish Championship: Final Round by Sergio Martinez, CCC, December 29, 1999

What links here?

Page	Date Edited
Betsabe	Jul 23, 2017
Che ES	Aug 18, 2015
David	Jul 20, 2016
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Juan Benitez	Dec 27, 2013
Minimax (program)	Dec 27, 2013
SCCC 1993	Dec 15, 2017
SCCC 1994	Dec 15, 2017
SCCC 1998	Dec 15, 2017
SCCC 1999	Aug 15, 2015
Spanish Computer Chess Championship	Aug 15, 2015
Tigran ES	Aug 18, 2015

Up one level

BikJump

GerdIsenberg — Mon, 11 Aug 2014 15:27:51 GMT

Java Version

Platforms

History and Future Plans

External Links

What Links Here?

Home * Engines * BikJump

BikJump,
an UCI chess engine written in C++ by Aart Bik that features:

UCI compliant chess engine (runs in e.g. Chessbase Fritz, Chess for Android, or Arena GUI).
Iterative deepening with alpha-beta pruning and quiescent search.
Transposition table, null move pruning, and tactical extensions.
Ability to query Nalimov Endgame Tablebases (3,4,5,6-piece) during search.

All source code of BikJump (except the probing and decompression code for the endgame tablebases, which are used with kind permission of Eugene Nalimov and Andrew Kadatch) has been built from the ground up by Aart as a simple after-hours project to gain some experience with chess engine programming and experiment with new ideas.

Java Version

A derived Java version is used as built-in engine in Chess for Android and Chess for Glass. This application also supports the Universal Chess Interface (UCI) and the Chess Engine Communication Protocol to allow users to play against more powerful third party engines or even play tournaments between engines.

Platforms

BikJump is available for the following platforms:

History and Future Plans

BikJump was first released In January, 2007. The first generation (v1.x) was based on a mailbox representation, and over time increased in strength from about 1750 to 2000 RUEL. The second and current generation (v2.x), based on a bitboard representation, was released in November, 2008. Aart now has started work on "Deep" BikJump, featuring multi-threading to perform the search in parallel (commonly referred to as SMP support). Upcoming versions will be designated with the suffix P (e.g. v2.1P) to denote this new parallel support.

External Links

What Links Here?

Page	Date Edited
Aart Bik	Mar 1, 2018
BikJump	Aug 11, 2014
Chess for Android	Mar 1, 2018
Chess for Glass	Dec 26, 2016
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
Mathematician	Apr 9, 2018
PuppetMaster	Sep 17, 2015

Up one Level

Bismark

GerdIsenberg — Wed, 22 Apr 2015 12:44:22 GMT

Home * Engines * Bismark

		Bismark, an UCI compliant open source chess engine written by Evgeny Shtranvasser in C++, recent version hosted by Bitbucket ^[1]. Bismark's board is represented as two-dimensional 8x8 array of squares and a vector of pieces. The engine applies negamax alpha-beta PVS with null move pruning, transposition table and a pure capture quiescence search within the iterative deepening loop. Beside material as dominating term, Bismark's evaluation aggregates values of middlegame and endgame piece-square tables along with king tropism, finally tapered by current game phase using float arithmetic. Further, Bismark considers various pawn structure terms, with appropriate bonuses for passers and candidates and penalties for doubled pawns and islands, as well as beneficial piece positions such as knight outposts, rook on open or semi-open file and bishop pair ^[2].
Between Berlin and Rome ^[3]

Forum Posts

Bismark and Powder by Geert Maeckelbergh, CCC, August 10, 2012

External Links

Chess Engine

jackalsh / Bismark — Bitbucket
SDChess - Downloads
Bismark 1.4 in CCRL 40/4
Chesstroid: New Android UCI engine: Bismark 1.3.JA by Gurcan Uckardes, January 13, 2015

Misc

References

^ jackalsh / Bismark — Bitbucket
^ Description based on the sources of Bismark 1.3
^ Caricature "Between Berlin and Rome" by Wilhelm Scholz from Kladderadatsch, May 16, 1875. The caption reads: (Pope:) "The last move was certainly very unpleasant for me; but that doesn't yet mean the game is lost. I have one more very fine move up my sleeve!" (Bismarck:) "It will also be the last, and then you are mated in a few moves - at least for Germany." Note the caricaturist's error in orienting the chessboard by placing white squares on players' left. Kulturkampf from Wikipedia, Wikimedia Commons

What links here?

Page	Date Edited
Bismark	Apr 22, 2015
Engines	Mar 10, 2018
Evgeny Shtranvasser	Apr 14, 2015
Gavon	Apr 30, 2018

Up one Level

Cassandre

GerdIsenberg — Fri, 05 Jul 2013 15:29:13 GMT

Home * Engines * Cassandre

		Cassandre, an Chess Engine Communication Protocol and UCI compliant open source chess engine under the terms of the GNU General Public License (GPL), written in C++ by Raphael Grundrich, Thomas Adolph and Jean-Francois Romang, first released in March 2003. Cassandre started as a student project at Louis Pasteur University, Strasbourg ^[1]. It is based on bitboards, in particular Rotated bitboards with 256 occupancy states to determine sliding piece attacks, bitscan aka first- and last one by conditional 16-bit lookups, and population count by eight byte lookups credited to Dann Corbit, and uses the alpha-beta algorithm ^[2].
Cassandra ^[3]

External Links

Chess Engine

Misc

References

^ Cassandre - Chess Engine
^ Cassandre - Chess Engine - About
^ Cassandra by Evelyn De Morgan (1898, London). Cassandra in front of the burning city of Troy at the peak of her insanity, Cassandra from Wikipedia

What links here?

Page	Date Edited
Cassandre	Jul 5, 2013
Engines	Mar 10, 2018
Jean-Francois Romang	Oct 23, 2017
Raphael Grundrich	Jul 5, 2013

Up one level

Cheese

GerdIsenberg — Sat, 17 Feb 2018 16:49:43 GMT

Home * Engines * Cheese

		Cheese, a Chess Engine Communication Protocol and UCI compliant free chess engine by Patrice Duhamel, written in C. The development started in early 2006, using rotated bitboards and alpha-beta search, improving rapidly, and first released in October 2007 as version 1.0. Since 2012, one can expect yearly updates with steady improvements. Since version 1.8 in March 2016, Cheese is able to play Chess960 (FRC). It is available for all major platforms and operating systems, Windows, Linux, Mac OS and Android ^[1].
Coulommiers cheese ^[2]

Selected Features

^[3]

Board Representation

Search

Evaluation

Misc

Forum Posts

2006 ...

Testing and debugging chess engines by Patrice Duhamel, Winboard Forum, December 03, 2006 » Debugging
new engine : Cheese v1.0b by Patrice Duhamel, Winboard Forum, November 07, 2007
Cheese 1.1 by Patrice Duhamel, Winboard Forum, January 02, 2008
Cheese 1.1b by Patrice Duhamel, Winboard Forum, January 22, 2008
Cheese 1.2 released by Patrice Duhamel, CCC, May 24, 2008
Cheese 1.3 by Patrice Duhamel, CCC, November 01, 2008

2010 ...

Cheese 1.4 by Patrice Duhamel, CCC, March 17, 2012
Cheese 1.5 by Patrice Duhamel, CCC, July 06, 2013
Cheese 1.6 by Patrice Duhamel, CCC, May 10, 2014

2015 ...

Chess for Android by Patrice Duhamel, CCC, January 04, 2015 » Chess for Android
Cheese 1.7 by Patrice Duhamel, CCC, April 04, 2015
Cheese 1.8 by Patrice Duhamel, CCC, March 19, 2016
Cheese 1.9 by Patrice Duhamel, CCC, May 06, 2017
Cooking Cheese with Texel's tuning method by Patrice Duhamel, CCC, June 16, 2017 » Texel's Tuning Method
Cheese 1.9.1 by Patrice Duhamel, CCC, September 16, 2017
Cheese 1.9.2 by Patrice Duhamel, CCC, February 17, 2018

External Links

Chess engine

Misc

References

^ Cheese Chess - Downloads
^ A Coulommiers cheese made from unpasteurised cow's milk, Image by Myrabella, May 13, 2010, CC BY-SA 3.0, Wikimedia Commons
^ based on Cheese Chess - Features

What links here?

Page	Date Edited
Cheese	Feb 17, 2018
Chess for Android	Mar 1, 2018
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Quark	May 11, 2017
Texel's Tuning Method	Dec 2, 2017

Up one Level

Cheng

GerdIsenberg — Sun, 30 Jul 2017 19:17:42 GMT

Home * Engines * Cheng

Cheng,
an UCI compliant open source chess engine by Martin Sedlak, written in C++ as exercise in generic programming, first released as Cheng3 in April 2011. Cheng is able to play Chess960, target platforms are Windows, Linux, Mac OS and Android systems ^[1]. Cheng4 0.38, released in January 2015, is available at GitHub under the permissive zlib license ^[2].

Description

Cheng ^[3] is a bitboard engine using fancy magic bitboards to determine sliding piece attacks. It applies staged move generation.

Search

The parallel multi-threaded search performs PVS alpha-beta with a shared transposition table inside a fractional ply iterative deepening framework with aspiration windows, featuring Lazy SMP ^[4]. Search routines are instantiated at compile time from a generic routine with three boolean template parameters, PV-node, in check, and null move pruning on-off, similar quiescence search has four instances for on-off combinations of PV-node and check. Further selectivity is applied by mate distance pruning, razoring, IID, futility pruning, check extensions and late move reductions. Move ordering is improved by the killer- and history heuristic.

Evaluation

Evaluation employs three further hash tables - evaluation hash table, material hash table and pawn hash table. The evaluation function determines hardware population count support at compile time, passed as template parameter to internal eval functions, finally adding a tempo bonus. Pawn and piece specific evaluators are further implemented with a color template, considering pawn structure, mobility, king safety and various piece pattern. Most of the gain in Cheng4 0.38, released in January 2015, is due to eval tuning using the Texel's Tuning Method by Peter Österlund ^[5].

Forum Posts

2011

cheng3 uci v1.0 by Martin Sedlak, CCC, April 19, 2011
cheng3 1.03 released by Martin Sedlak, CCC, May 27, 2011
cheng3 1.05 released by Martin Sedlak, CCC, September 26, 2011
cheng3 1.06 released by Martin Sedlak, CCC, November 23, 2011

2012 ...

cheng3 1.07 released by Martin Sedlak, CCC, January 21, 2012
cheng4 0.35 by Martin Sedlak, CCC, September 24, 2013
cheng4 0.36 by Martin Sedlak, CCC, November 10, 2013
cheng4 0.36a (FRC bugfix) by Martin Sedlak, CCC, November 15, 2013

2014 ...

cheng4 0.36c - last version by Martin Sedlak, CCC, January 30, 2014
Tragic that Martin Sedlak has discontinued Cheng by User923005, OpenChess Forum, January 31, 2014
Cheng: A great lost to the community by Frank Quisinsky, CCC, January 15, 2015
cheng4 0.38 release by Martin Sedlak, CCC, January 18, 2015
Lazy SMP in Cheng by Martin Sedlak, CCC, February 02, 2015 » Lazy SMP
Lazy SMP scaling Cheng0.38 by Bertil, FishCooking, February 24, 2015
Empirical results with Lazy SMP, YBWC, DTS by Kai Laskos, CCC, April 16, 2015 » Lazy SMP, YBWC, DTS
Cheng 4.39 release by Martin Sedlak, CCC, July 20, 2015
Cheng 4.39 Android version bugfix by Martin Sedlak, CCC, November 13, 2015

External Links

Chess Engine

GitHub - kmar/cheng4: cheng4 chess engine
Cheng chess engine hosted by Emil Vlasák
Index of /chess/engines/Jim Ablett/CHENG by Jim Ablett hosted by Kirill Kryukov
Cheng4 0.36a 64-bit in CCRL 40/40

Misc

Cheng (Disambiguation) from Wikipedia

References

^ UCI and XBoard Engines for Android by Aart Bik
^ GitHub - kmar/cheng4: cheng4 chess engine
^ Description based on Cheng4 036c
^ Lazy SMP in Cheng by Martin Sedlak, CCC, February 02, 2015
^ cheng4 0.38 release by Martin Sedlak, CCC, January 18, 2015

What links here?

Page	Date Edited
Cheng	Jul 30, 2017
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Gavon	Apr 30, 2018
Lazy SMP	Jan 4, 2018
Martin Sedlak	Dec 25, 2017
Parallel Search	Dec 30, 2017
Shared Hash Table	Sep 11, 2017
TCEC Season 6	Dec 2, 2014
TCEC Season 7	Jan 23, 2015
TCEC Season 8	Nov 30, 2015

Up one level

Chess Art For Kids

Krasimir.Topchiyski — Tue, 13 Sep 2016 07:54:12 GMT

Home * Engines * Bagatur * Chess Art For Kids

		Chess Art For Kids, a free Android chess program written in Java, which has its own GUI and incorporates the Bagatur chess engine by Krasimir Topchiyski. The latest version could be downloaded from Google Play and runs under phones and tablets ^[1] . Chess Art For Kids supports different playing modes like standard chess, free style, pieces aware ^[2] , as well as different skill levels, which makes the program suitable for learning chess. It also offers other features like different color palettes and different piece sets.
Chess Art For Kids Logo

Screenshot

External Links

References

^ Chess Art for Kids - Android Apps on Google Play
^ Piece aware - like Mock Chess but captures are not mandatory (https://en.wikipedia.org/wiki/V._R._Parton#Mock_Chess)

What links here?

Page	Date Edited
Android	Jan 9, 2018
Bagatur	Sep 10, 2016
Chess Art For Kids	Sep 13, 2016
Engines	Mar 10, 2018

Up one Level

Chess for Android

GerdIsenberg — Thu, 01 Mar 2018 18:12:58 GMT

Home * User Interface * GUI * Chess for Android
Home * Engines * Chess for Android

		Chess for Android, written by Aart Bik, is a standalone chess application for Android. The application is available for free at the Android Market ^[1] or as direct download ^[2] and consists of a chess engine (a Java version derived from the UCI engine BikJump that is written in C++) and a GUI. The application accepts moves through the touchscreen, the trackball, or through the keyboard (e2e4 pushes the king pawn, e1g1 castles king side, etc.). An optional "move coach" highlights valid user moves during input and last played engine move. Full game navigation buttons enable users to correct mistakes or analyze games. Games import and export as FEN/PGN to and from the clipboard, load and save as file, are set up through a position editor, or import as application/x-chess-pgn MIME type on startup. A draw by stalemate, insufficient material, the fifty move rule, or threefold repetition is recognized. The engine plays at various levels (including random, against itself in auto-play, or free-play, where the game can be used as a "magnetic chessboard"). The user can play either side and, independently, view the board from the perspective of white or black. The application also supports the Universal Chess Interface (UCI) and Chess Engine Communication Protocol (often simply called WinBoard or XBoard protocol), which allows users to play against more powerful third party engines or even play tournaments between engines. Engine setup features pondering, infinite analysis, hash tables, multiple threads, endgame tablebases (Nalimov , Gaviota, Scorpio, Robbobases), and opening test suites. Chess for Android recognizes all ChessBase compatible engines that are installed on the same device. Since version 5.6 released in February 2018 ^[3], Chess for Android supports the electronic chess board of the Millennium ChessGenius ^[4].
Chess for Android on a Tablet

Images

Screenshot of latest version

Setup Position

Screenshot of older G1 version

Forum Posts

2008 ...

Chess for Android by Aart Bik, CCC, November 24, 2008
Upcoming Chess for Android 2.0 by Aart Bik, CCC, October 19, 2009

2010 ...

Chess for Android with UCI support released by Aart Bik, CCC, August 23, 2010
Chess for Android with UCI support released by Aart Bik, OpenChess Forum, August 23, 2010
Chess for Android 2.5 by Aart Bik, CCC, January 05, 2011
Chess for Android 2.8 by Aart Bik, CCC, April 01, 2011
Chess for Android 3.0.2: enhanced XBoard support by Aart Bik, CCC, October 24, 2011
Chess for Android upcoming network feature by Aart Bik, CCC, July 03, 2012
Chess for Android v4.1.5: sharing by Aart Bik, CCC, January 12, 2013

2015 ...

Chess for Android by Patrice Duhamel, CCC, January 04, 2015 » Cheese
Chess for Android v5.0: Time Control by Aart Bik, CCC, January 09, 2015
Chess on Android by Pedro Castro, CCC, April 19, 2016 » Chess Engine Communication Protocol, DanaSah
New Chess Graphics for Chess for Android by Aart Bik, CCC, October 13, 2016
Chess for Android v5.3 by Aart Bik, CCC, November 27, 2017
Chess for Android v5.4: adjudication by Aart Bik, CCC, December 18, 2017
Chess for Android v5.6 by Aart Bik, CCC, February 26, 2018
Re: Chess for Android v5.6 by Aart Bik, CCC, February 28, 2018 » Millennium ChessGenius

External Links

References

^ Android Market - Apps by Aart Bik
^ Download Chess for Android
^ Re: Chess for Android v5.6 by Aart Bik, CCC, February 28, 2018
^ Connecting Chess for Android with the Millennium » Millennium ChessGenius

What links here?

Page	Date Edited
chessmateapp : ChessMateResources	May 28, 2014
Aart Bik	Mar 1, 2018
Algebraic Chess Notation	Sep 25, 2017
Android	Jan 9, 2018
Android-Chess	Jun 2, 2016
BikJump	Aug 11, 2014
Cheese	Feb 17, 2018
Chess Engine Communication Protocol	Mar 4, 2018
Chess for Android	Mar 1, 2018
Chess for Glass	Dec 26, 2016
DanaSah	Oct 9, 2017
DroidFish	Jan 17, 2017
Engines	Mar 10, 2018
Entering Moves	Sep 7, 2017
Greko	Feb 27, 2018
GUI	Mar 16, 2018
Jazz	Oct 4, 2017
Komodo	Mar 6, 2018
Mathematician	Apr 9, 2018
Millennium ChessGenius	Mar 1, 2018
Pedro Castro	Apr 19, 2016
SolusChess	Apr 21, 2015
UCI	Mar 4, 2018

Up one Level

Chess Free

GerdIsenberg — Sat, 06 Dec 2014 16:47:33 GMT

Home * Engines * Treebeard * Chess Free

		Chess Free, an Android port of AI Factory's Treebeard chess engine, which was developed by Jeff Rollason with support of tester Didzis Cirulis ^[1]. Chess Free for Android was first released in September 2010 ^[2].
Chess Free ^[3]

Forum Posts

Free Chess program in Android by Fernando Villegas, CCC, December 03, 2014

External Links

References

^ Jeff Rollason, Didzis Cirulis (2005). Treebeard - A new way to do Chess. AI Factory, Summer 2005
^ AI Factory News - September 2010
^ Chess Free - Android-Apps on Google Play

What links here?

Page	Date Edited
Chess Free	Dec 6, 2014
Engines	Mar 10, 2018
Treebeard	Mar 25, 2015

Up one Level

Chess Genius

GerdIsenberg — Mon, 26 Feb 2018 15:59:40 GMT

Home * Engines * Chess Genius

		Chess Genius (ChessGenius), a series of chess engines by Richard Lang, written in assembly for various processor architectures such as Motorola 68000 and Intel 8086 and x86, and successor of Lang's dedicated 68000 based Mephisto Vancouver program incorporating small improvements, the 8086 version first released in 1992 as PC program running under 16-bit MS-DOS ^[1]. Chess Genius 2 won the manufacturers and Absolute World Microcomputer Chess Champion titles at the WMCCC 1993 running on the PC based Mephisto Wundermaschine, and was also shipped as Mephisto Genius 68030 module for Mephisto module systems. Chess Genius 4 in 1995 became a 16-bit Windows program ^[2] with a GUI developed by Adrian Millett ^[3] written in C ^[4], which further evolved to a multi-engine GUI via Chess Genius 6 (6.5) to the Millennium Chess System ^[5], and the Chess Genius Classic GUI ^[6]. Chess Genius was further ported to various PDA and mobile platforms, such as Palm and Apple's iPhone, iPod touch, and iPad on the iTunes Store ^[7] , as well as Android. In November 2015, Chess Genius, ported to the ARM Cortex-M processor, was released as dedicated Millennium ChessGenius.
Chess Genius for DOS ^[8]

Screenshots


Chess Genius Classic 7.1 for Windows ^[9]		ChessGenius for Android ^[10]

Intel Grand Prix

In 1994, during the Intel Grand Prix Cycle ^[11] in London, Chess Genius 3, operated by Ossi Weiner, won a speed chess game (25-minutes per side) against Garry Kasparov ^[12] and drew the second game, knocking Kasparov out of the tournament. This was the first match that Kasparov ever lost to a computer. In the next round, Genius then beat Predrag Nikolić, but then lost to Viswanathan Anand ^[13] ^[14] ^[15] ^[16] .

[Event "Intel Chess Grand Prix"]
[Site "London (England)"]
[Date "1994.08.12"]
[Round "1"]
[White "Garry Kasparov"]
[Black "Chess Genius"]
[Result "0-1"]
 
1.c4 c6 2.d4 d5 3.Nf3 Nf6 4.Qc2 dxc4 5.Qxc4 Bf5 6.Nc3 Nbd7 7.g3 e6 8.Bg2 Be7
9.O-O O-O 10.e3 Ne4 11.Qe2 Qb6 12.Rd1 Rad8 13.Ne1 Ndf6 14.Nxe4 Nxe4 15.f3 Nd6
16.a4 Qb3 17.e4 Bg6 18.Rd3 Qb4 19.b3 Nc8 20.Nc2 Qb6 21.Bf4 c5 22.Be3 cxd4
23.Nxd4 Bc5 24.Rad1 e5 25.Nc2 Rxd3 26.Qxd3 Ne7 27.b4 Bxe3+ 28.Qxe3 Rd8 29.Rxd8+
Qxd8 30.Bf1 b6 31.Qc3 f6 32.Bc4+ Bf7 33.Ne3 Qd4 34.Bxf7+ Kxf7 35.Qb3+ Kf8
36.Kg2 Qd2+ 37.Kh3 Qe2 38.Ng2 h5 39.Qe3 Qc4 40.Qd2 Qe6+ 41.g4 hxg4 42.fxg4 Qc4
43.Qe1 Qb3+ 44.Ne3 Qd3 45.Kg3 Qxe4 46.Qd2 Qf4+ 47.Kg2 Qd4 48.Qxd4 exd4 49.Nc4
Nc6 50.b5 Ne5 51.Nd6 d3 52.Kf2 Nxg4+ 53.Ke1 Nxh2 54.Kd2 Nf3+ 55.Kxd3 Ke7 56.Nf5+
Kf7 57.Ke4 Nd2+ 58.Kd5 g5 59.Nd6+ Kg6 60.Kd4 Nb3+ 0-1

Game and short analyze on Lichess.org : https://fr.lichess.org/BhO7GmBH

Instances

Publications

Eric Hallsworth (1992). Chess Genius. Selective Search 43, pp. 7, pdf hosted by Mike Watters
Richard Lang (1995). Chess Genius 4. Computer Chess Reports Vol. 5 No. 3+4, pp. 80
Paul Wiereyn (1997). Genius-3 Cooked Endgame Studies. ICCA Journal, Vol. 20, No. 3

Forum Posts

1993 ...

Chess Genius by Roy Eassa, rgc, March 08, 1993
Chess Genius by Ray Helie, rgc, June 08, 1993
New programs released! by Ralf Stephan, rgc, October 10, 1993 » Gideon
Chess Genius 2.0 by Murat Saygin, rgc, December 18, 1993
Mephisto Genius 3.0 - A bit of info by Franz Hemmer, rgc, October 02, 1994
cg by Pc Solutions, rgc, December 29, 1994

1995 ...

Genius 4 is a Windows program by Andy Duplain, rgcc, November 24, 1995
Win95/genius 4 users note by PC SOL, rgcc, March 30, 1996
Chess Genius 3.0--->4.0 Upgrade by Daniel Chinn, rgcc, August 07, 1996
Genius 5 (DOS us Windows) by Hansjoerg Zech, rgcc, December 11, 1996
Genius isn't sensitive enough? by Serge Desmarais, rgcc, April 16, 1997
Genius' asymmetric-search by example: TRY yourself by Thorsten Czub, rgcc, December 30, 1997
Chess Genius 5 by Frank Nelson, rgcc, April 18, 1998
Opinions on Genius 5.0 by barry, rgcc, April 18, 1998
CG6 --- integration of all chess engines -- good or bad?! by Lonnie, rgcc, November 03, 1998 » Millennium Chess System
Genius 6 Questions by Chessnut, rgcc, February 20, 1999
Re: Chess Genius 6.5 by Pc Solutions, rgcc, November 24, 1999 » Shredder, Millennium Chess System
Genius 6.5 - Is it an improvement? by Albert Silver, CCC, November 25, 1999

2000 ...

Re. Genius on Palm / Richard Lang the return by Steve Maughan, CCC, February 09, 2000
Genius 6.5 vs. 6.0/6.1 vs. 5 by Roy Eassa, CCC, December 07, 2000
Genius2 is clearly a legal free program by Uri Blass, CCC, April 09, 2001
Genius strongest version? by Jonas Cohonas, CCC, July 09, 2002
Chess Genius 7 Engine by James Constance, CCC, November 02, 2002
Is Genius the only asymmetry program out there? by Dana Turnmire, CCC, October 08, 2003
Re: Is Genius the only asymmetry program out there? by Christophe Théron, CCC, October 08, 2003
Chess Genius 5 question by Murat, CCC, December 29, 2004

2005 ...

Asymmetry in Genius? by Vladimir Medvedev, CCC, September 15, 2005 ^[17]
Chess Genius Classic 7 by adam wilks, CCC, December 16, 2005
Question about ChessGenius for Symbian OS by Vikrant Malvankar, CCC, December 19, 2005
Richard Lang Give me Some News by Fernando Villegas, CCC, June 01, 2007
Who is testing Genius 7? by Marek Soszynski, CCC, December 21, 2007
ChessGenius Classic 7.200e Download by Norbert Raimund Leisner, CCC, July 23, 2008
ChessGenius for the iPhone by Bryan Whitby, CCC, October 22, 2008

2010 ...

Strength of Chess Genius Classic by Gerald Grimsley, CCC, October 06, 2010
Re: Some thoughts on QS by Don Dailey, CCC, July 24, 2012 » Quiescence Search
ChessGenius for Windows 8 by Norbert Raimund Leisner, CCC, May 12, 2013
Embedded freeware engines into ChessGenius Classic GUI by Norbert Raimund Leisner, CCC, July 25, 2014

2015 ...

Does DOSBOX accept Mephisto Genius 3? by Jonathan Lee, CCC, April 03, 2015 » MS-DOS
ChessGenius 7 Classic GUI - commercial UCI chess engines by Norbert Raimund Leisner, CCC, April 14, 2015
Millennium Chess Genius is here by Thorsten Czub, CCC, October 09, 2015 » Millennium ChessGenius
Chess Genius Pro by Hans van Mierlo, Hiarcs Forum, August 12, 2016
Chess Genius 3 Beat Kasparov on a Pentium 90? by Brendan J. Norman, CCC, May 30, 2017

External Links

References

^ Eric Hallsworth (1992). Chess Genius. Selective Search 43, pp. 7, pdf hosted by Mike Watters
^ Staff (1995). An Interview with Richard Lang. Computer Chess Reports Vol. 5 No. 3+4 pp. 63
^ ChessGenius Classic 7.0 - The Chess Program that beat Kasparov!
^ Richard Lang (1995). Chess Genius 4. Computer Chess Reports Vol. 5 No. 3+4, pp. 80
^ Schachclub Leinzell - Schach + PC - Shredder 5, Teil 1 by Peter Schreiner (German)
^ ChessGenius Classic 7.0 - The Chess Program that beat Kasparov!
^ Chess Genius for iPhone, iPod touch, and iPad on the iTunes App Store
^ Septober - Computerschach by Herbert Marquardt
^ ChessGenius Classic 7.0 - The Chess Program that beat Kasparov!
^ ChessGenius for Android
^ GM Magazine: Vol. 12 Intel Grand Prix London 1994 {DVD} by GM Daniel King
^ Matches by Ed Schröder
^ Intel Rapid Chess Grand Prix 1994 - London from chessgames.com
^ Garry Kasparov vs Chess Genius (1994) from chessgames.com
^ ChessGenius - Famous game - Wikipedia
^ Kasparov, Garry 2805 - Genius 3, Intel World Chess Grand Prix London (1) 1994 D23, 0-1 [Hertneck,G] from Schachcomputer.info Wiki (German)
^ Re: Farewell of chess programmers by Thorsten Czub, CCC, September 15, 2005

What links here?

Page	Date Edited
Adrian Millett	Jul 12, 2017
Aegon 1993	Mar 26, 2017
Aegon 1994	Mar 26, 2017
Aegon 1995	Apr 6, 2017
Aegon 1996	Jan 22, 2017
Aegon 1997	Apr 7, 2017
Aubervilliers Rapid Open	Mar 25, 2017
Bryan Whitby	Jan 2, 2017
Chess Genius	Feb 26, 2018
Chess System Tal	Jan 13, 2017
Cyrus	Jul 22, 2014
Dedicated Chess Computers	Feb 20, 2018
Didzis Cirulis	Dec 25, 2015
Engines	Mar 10, 2018
Frenchess	Jan 7, 2016
Gideon	Feb 26, 2018
ICGA Journal	Dec 21, 2017
Kasparov simul vs 32 micro Hamburg 1985	Dec 22, 2017
MChess	Feb 26, 2018
Mephisto	Dec 18, 2017
Mephisto Genius 68030	Sep 2, 2017
Mephisto Vancouver	Sep 2, 2017
Mephisto Wundermaschine	Sep 2, 2017
MILLENNIUM 2000 GmbH	Jul 13, 2017
Millennium Chess System	Jul 12, 2017
Millennium ChessGenius	Mar 1, 2018
Moritz Berger	Feb 25, 2018
MS-DOS	Feb 3, 2018
Nimzo	Dec 30, 2017
Novag Universal Electronic Chess Board	Feb 24, 2017
Opponent Model Search	Aug 14, 2017
Oracle	Sep 4, 2016
Ossi Weiner	Dec 18, 2017
Paul Wiereyn	Jun 4, 2015
Peter Schreiner	May 22, 2016
Rebel	Feb 25, 2018
Richard Lang	Jan 7, 2016
Saitek PC Auto Chessboard	Jun 11, 2016
Shredder	Jan 21, 2018
TASC SmartBoard	Feb 25, 2018
Thompson's Databases	Dec 24, 2014
Tournaments	Dec 21, 2017
WCCC 1992	Feb 26, 2018
WCCC 1995	Jul 12, 2017
WMCCC 1993	Dec 30, 2017
WMCCC 1995	Jan 3, 2018
World Microcomputer Chess Championship	Jan 7, 2016
Zarkov	Feb 26, 2018

Up one Level

Cinnamon

GerdIsenberg — Sat, 23 Sep 2017 10:52:39 GMT

Home * Engines * Cinnamon

		Cinnamon, an UCI compliant open source chess engine by Giuseppe Cannella, written in C++11, published under GPL Version 3. Cinnamon was first released in February 2013 ^[1] under that name, while former versions of the engine were called Butterfly. It targets multiple hardware platforms and operating systems such as Windows, Linux, Mac OS and Android, also available for the Raspberry Pi, and further provides a JavaScript library to play with chessboardjs or any js GUI. Cinnamon is bundled with the Tarrasch GUI for Windows ^[2].
Cinnamon ^[3]

Features

^[4]

Forum Posts

OSX compiler wanted by Giuseppe Cannella, Winboard Forum, July 06, 2013
Cinnamon 1.1 for Mac OS X 32-bit by Norbert Raimund Leisner, CCC, July 07, 2013

External Links

Chess Engine

Misc

References

^ Cinnamon « G 6
^ cinnamon chess engine - open source chess engine
^ Cinnamon: sticks (ceylon cinnamon from Sri Lanka), powder, and flowers. Created from 31 images stacked with CombineZP, by Simon A. Eugster, CC BY-SA 3.0, Wikimedia Commons, Cinnamomum from Wikipedia
^ cinnamon/README.md at master · gekomad/cinnamon · GitHub

What links here?

Page	Date Edited
Cinnamon	Sep 23, 2017
DGT Pi	Oct 22, 2017
Engines	Mar 10, 2018
Gavon	Apr 30, 2018
Giuseppe Cannella	Sep 26, 2017

Up one Level

Critter

GerdIsenberg — Sat, 25 Jan 2014 13:11:36 GMT

Home * Engines * Critter

		Critter, an UCI compatible cross-platform chess engine by Richard Vida, executables freely available for personal use to run under Windows, Linux, Android and Mac OS ^[1] . Starting in late 2008, Critter was first written in Object Pascal compiled with Delphi, now available as open source engine ^[2] ^[3] , and was ported to C / C++ in 2009 ^[4] . It consistently evolved through various board representations from 0x88 to bitboards, as acknowledged by Richard Vida, also incorporating ideas from strong open source programs like Ippolit ^[5] , to a world class engine which achieved top five of most engine rating lists ^[6] .In 2012, Critter had its over the board debut at the ICT 2012, where it became strong runner-up behind the Rybka cluster.
Critter Country ^[7]

Description

Critter applies a principal variation search with aspiration windows, null move pruning ^[8] and other state of the art forward pruning, reduction and extension techniques, such as the Botvinnik-Markoff extensions ^[9] . It can search in parallel with up to eight threads ^[10] , supports Gaviota tablebases ^[11] , and is able to play Chess960 ^[12] . Critter features a tapered eval with a score pair class and overloaded operators ^[13] ^[14] , and blockage detection in late endgames ^[15] .

Selected Games

ICT 2012, round 7, Rybka - Critter ^[16] ^[17]

[Event "ICT12"]
[Site "Leiden"]
[Date "2012.05.13"]
[Round "7"]
[White "Rybka"]
[Black "Critter"]
[Result "1/2-1/2"]
 
1.d4 d5 2.c4 e6 3.Nf3 c6 4.e3 Bd6 5.b3 f5 6.Bd3 Nf6 7.O-O Qe7 8.Bb2 O-O
9.Qc1 b6 10.Ba3 Bb7 11.Bxd6 Qxd6 12.Nc3 dxc4 13.Bxc4 Nbd7 14.Re1 b5
15.Bd3 b4 16.Na4 c5 17.Nxc5 Bxf3 18.gxf3 Rfc8 19.Bc4 Nxc5 20.dxc5 Rxc5
21.a3 bxa3 22.Qxa3 Nd5 23.Red1 Qc7 24.Kg2 Rd8 25.Bxd5 Rdxd5 26.Qa4 Qe7
27.Rxd5 Rxd5 28.Qxa7 Qxa7 29.Rxa7 Rb5 30.Re7 Rb6 31.Kg3 Kf8 32.Rd7 Rxb3
33.Kf4 Rb5 34.h4 h6 35.Kg3 Rb8 36.h5 Re8 37.Rb7 Re7 38.Rb5 Kf7 39.e4 Kf6
40.exf5 exf5 41.Kf4 Re2 42.Rxf5+ Ke6 43.Rb5 Rxf2 44.Rb6+ Kf7 45.Rb7+ Kf6
1/2-1/2

Release Dates

Critter 0.38 : 2009-05
Critter 0.39a : 2009-06
Critter 0.42 : 2009-10
Critter 0.52 : 2010-01
Critter 0.52b : 2010-02
Critter 0.60 : 2010-04
Critter 0.70 : 2010-05
Critter 0.80 : 2010-07
Critter 0.90 : 2010-11
Critter 1.0 : 2011-03
Critter 1.01 : 2011-03
Critter 1.2 : 2011-06
Critter 1.4 : 2011-12
Critter 1.4a : 2012-01
Critter 1.6 : 2012-06
Critter 1.6a : 2012-06

Publications

Arno Nickel (2012). Die schöne neue Welt der Schachengines. SCHACH 2,3,5,6 2012, pdf (German) ^[18]

Forum Posts

2009

Critter 0.34 : 2146 by Patrick Buchmann, CCC, April 18, 2009
Critter 0.38 : 2330 by Patrick Buchmann, CCC, May 22, 2009
Critter 0.40 released by Richard Vida, CCC, July 26, 2009
Critter 0.40 : 2471 by Patrick Buchmann, CCC, August 01, 2009
Critter: Pascal vs C by Richard Vida, CCC, August 27, 2009 » C, Pascal
Critter 0.42 available by Richard Vida, CCC, October 08, 2009 » Pascal
Critter 0.42 : 2649 by Patrick Buchmann, CCC, October 11, 2009

2010

Critter 0.52 available by Richard Vida, CCC, Jan 25, 2010 » C
Critter 0.52b added to the IPON list ... by Ingo Bauer, CCC, February 04, 2010
Strange knight underpromotion by Critter by Richard Vida, CCC, March 04, 2010
Critter goes SMP (version 0.60 is released) by Richard Vida,CCC, April 13, 2010
Critter 0.60: 2718 by Patrick Buchmann, CCC, April 14, 2010
Critter 0.70 is out by Richard Vida, CCC, May 23, 2010
Critter 0.80 by Richard Vida, CCC, July 24, 2010
Critter 0.90 released by Richard Vida, CCC, November 29, 2010
Critter - looking at static evaluation by Richard Vida, CCC, December 11, 2010

2011

Critter 1.0 available by Richard Vida, CCC, March 16, 2011
Critter 1.0 for Linux by Richard Vida, CCC, March 22, 2011 » Linux
My experience with Linux/GCC by Richard Vida, CCC, March 23, 2011
Critter bugfix update by Richard Vida, CCC, March 28, 2011 ^[19]
Critter 1.2 update + new homepage by Richard Vida, CCC, June 25, 2011 » Android
Critter 1.2 SEEMS to be a member of the Ippo family by Kai Laskos, CCC, July 02, 2011
for Pascal fans: Critter by Richard Vida, CCC, September 16, 2011

2012 ...

Re: World Computer Chess Championship ? by Richard Vida, CCC, June 11, 2012
Re: Critter 1.6 released! by Richard Vida, CCC, June 15, 2012
Continuation of Critter would be very appreciated by Mike Scheidl, CCC, May 15, 2013

External Links

Chess Engine

Critter for win32/64, linux and android platforms hosted by Emil Vlasák
SourceForge.net: Critter Chess - Project Web Hosting - Open Source Software (Pascal Version)
Critter (chess) from Wikipedia
Critter at CCRL 40/40

Misc

References

^ Critter for win32/64, linux and android platforms hosted by Emil Vlasák, Mac OS version compiled by Jeremy Bernstein
^ for Pascal fans: Critter by Richard Vida, CCC, September 16, 2011
^ SourceForge.net: Critter Chess - Project Web Hosting - Open Source Software
^ Critter: Pascal vs C by Richard Vida, CCC, August 27, 2009
^ Re: World Computer Chess Championship ? by Richard Vida, CCC, June 11, 2012
^ Critter (chess) from Wikipedia
^ Critter Country from Wikipedia run by The Walt Disney Company
^ Interview with Richard Vida by Frank Quisinsky, February 20, 2010
^ Re: World Computer Chess Championship ? by Richard Vida, CCC, June 11, 2012
^ Critter goes SMP (version 0.60 is released) by Richard Vida, CCC, April 13, 2010
^ Critter 0.70 is out by Richard Vida, CCC, May 23, 2010
^ Critter 0.80 by Richard Vida, CCC, July 24, 2010
^ Re: talk about IPP's evaluation by Richard Vida, CCC, November 07, 2009 » Ippolit, SIMD and SWAR Techniques
^ My experience with Linux/GCC by Richard Vida, CCC, March 23, 2011
^ Chiron 1.1 bug? by Richard Vida, CCC, December 24, 2011
^ Leiden Round 7: Rybka vs Critter by Ray, Rybka Forum, May 13, 2012
^ ICT 12 - PGN download, CSVN
^ Part 1 covers Houdini, Rybka, Komodo, Stockfish, Critter, Naum, Chiron and Spike
^ Difficult position to Critter by Jouni Uski, CCC, March 24, 2011

What links here?

Page	Date Edited
Arno Nickel	Sep 25, 2015
Blockage Detection	Oct 19, 2017
Chiron	Sep 24, 2017
Critter	Jan 25, 2014
Delphi	Dec 16, 2016
Engines	Mar 10, 2018
Gaviota Tablebases	Apr 22, 2018
Houdini	Apr 14, 2018
ICT 2012	Jun 11, 2012
Kai Laskos	Jan 21, 2018
Komodo	Mar 6, 2018
Languages	Nov 26, 2017
Naum	Nov 23, 2017
Richard Vida	Aug 11, 2013
Rybka	Mar 27, 2017
Scid on the Go	Jan 26, 2015
Spike	Jan 7, 2016
Stockfish	Apr 7, 2018
Strelka	May 17, 2016
TCEC Season 5	Jun 2, 2014
TCEC Season 6	Dec 2, 2014
TCEC Season 7	Jan 23, 2015
TCEC Season 9	Nov 6, 2017
Who's Who	Sep 6, 2017

Up one level

CT800

GerdIsenberg — Wed, 21 Feb 2018 14:28:20 GMT

Home * Engines * CT800

		CT800, a FLOSS dedicated chess computer designed by Rasmus Althoff. The CT800 features an ARM Cortex M4 microcontroller of an Olimex H405 board ^[1] that operates up to 168 Mhz, with 1 MiB of flash memory, 192+4 kiB of SRAM, and multiple I/O and USB connectors, with a 4x20 character text display, two leds, and a 4x4 + 1 keypad as peripherals aka user interface. Voltage source is due to four NiMH rechargeable AA batteries or external 5 V DC power supply. CT800's firmware is developed by Rasmus Althoff, released under the GPL Version 3, the chess playing software is an ARM port of George Georgopoulos' open source engine NG-play ^[2] including a KPK bitbase by Marcel van Kervinck ^[3] ^[4] and runs on both Linux or Android.
CT800 front ^[5]

Forum Posts

new chess computer: CT800 by Rasmus Althoff, CCC, September 05, 2016
New idea for "easy move detection" by Rasmus Althoff, CCC, November 05, 2016 » Time Management
CT800 V1.01 by Rasmus Althoff, CCC, November 13, 2016
CT800 V1.10 released by Rasmus Althoff, CCC, June 06, 2017
CT800 V1.11 release + Winboard-version by Rasmus Althoff, CCC, June 17, 2017
CT800 V1.12 released by Rasmus Althoff, CCC, October 14, 2017
CT800 engine: Android problems? by Rasmus Althoff, CCC, January 08, 2018 » Android

External Links

References

^ Olimex STM32-H405
^ CT800 Summary
^ Yet another KPK endgame table generator: pfkpk by Marcel van Kervinck, CCC, September 05, 2015
^ kervinck/pfkpk · GitHub
^ CT800 Gallery

What links here?

Page	Date Edited
Android	Jan 9, 2018
CT800	Feb 21, 2018
Dedicated Chess Computers	Feb 20, 2018
Engines	Mar 10, 2018
NG-play	Feb 26, 2017
Rasmus Althoff	Jul 23, 2017
Time Management	Mar 20, 2018

Up one Level

CuckooChess

GerdIsenberg — Tue, 17 Jan 2017 15:04:47 GMT

Home * Engines * CuckooChess

		CuckooChess, an advanced free open source chess program under the GNU General Public License written in Java by Peter Österlund. CuckooChess provides an own GUI, and optionally supports the UCI protocol for the use with external GUIs such as Arena. An Android port is available, where its GUI is also base of Peter Österlund's Stockfish port dubbed DroidFish ^[1] .
Common Cuckoo in flight ^[2]

Internals

CuckooChess applies many of the standard methods for computer chess programs, such as iterative deepening, negascout, aspiration windows, quiescence search with SEE pruning and MVV/LVA move ordering, hash table, history heuristic, recursive null moves, futility pruning, late move reductions, opening book and magic bitboards. CuckooChess name was chosen because it's transposition table is based on Cuckoo hashing ^[3] .

Forum Posts

New UCI engine - CuckooChess by Tony Mokonen, CCC, January 11, 2010
CuckooChess 1.12 by Peter Österlund, CCC, October 24, 2011
Chess-playing lego robot by Peter Österlund, CCC, January 30, 2014 » Nona, the Chess-Playing Lego Robot

External Links

Chess Engine

Misc

Cuckoo hashing from Wikipedia
Cuckoo search from Wikipedia
Cuckoo clock from Wikipedia ^[5]

Mechanical cuckoo, 1650
Cuckoo (disambiguation) from Wikipedia
Cuckoo from Wikipedia
Category:Cuckoos in art from Wikipedia
Category:Cuckoos in heraldry from Wikipedia
Common Cuckoo from Wikipedia
Common Cuckoo - Breeding
The Cuckoo's Egg (book) from Wikipedia ^[6]

Red-backed Shrike
Garden Warbler
Yellowhammer
Common Redstart

References

^ DroidFish - Strong chess program for the Android platform
^ Common Cuckoo from Wikipedia
^ CuckooChess 1.12 - A Java Chess Program
^ Re: PHOENIX=CuckooChess with learning function in Falcon style by Peter Österlund, CCC, March 20, 2016
^ Cuckoo Mechanism. Detail of a drawing of a mechanical organ, 1650. In: Athanasius Kircher: Musurgia Universalis. 2 Vols. Rome 1650, Plate XXI. Photo and Permission by: German Clock Museum Furtwangen (Germany)
^ Images from Kuckuck - 7.2 Eiablage Wikipedia.de (German)

What links here?

Page	Date Edited
ChessBrainVB	Jun 24, 2017
CuckooChess	Jan 17, 2017
DroidFish	Jan 17, 2017
Engines	Mar 10, 2018
Gopalakrishnan Srinivasaraghavan	Mar 31, 2016
Languages	Nov 26, 2017
Peter Österlund	Aug 24, 2017
Phoenix (Rahul)	Mar 31, 2016
Rahul A. R.	Jan 22, 2017
Robots	Feb 20, 2018
Shrike	Dec 30, 2012
Texel	Oct 9, 2017

Up one Level

DanaSah

GerdIsenberg — Mon, 09 Oct 2017 18:34:03 GMT

Home * Engines * DanaSah

DanaSah,
a Chess Engine Communication Protocol, and since version 6.1 UCI compatible open source chess engine by Pedro Castro, written in C, and first released in January 2005 ^[1]. DanaSah's name is related to Dana of Daniela and Sah, which means chess in Romanian ^[2]. Since DanaSah 6.1 in May 2016, chess960 is supported, available as Windows, Linux and Android binary.

Features

^[3]

Opening book of Pro Deo. Thanks to Ed Schröder and Jeroen Noomen
Bitbases of Scorpio. Thanks to Daniel Shawul
Board representation: array of 64, based on FirstChess (Pham Hong Nguyen)
Aspiration search, window 15 and 150
PVS and quiescence search. Thanks to Bruce Moreland for his Web page
Transposition tables. Thanks to Miguel Izquierdo (Popochin)
Adaptive Null move pruning, R = 2-5
(Internal) Iterative Deepening
Search extensions: check, pawn on seventh, recapture, transition to pawn endgame
Late move reductions
Razoring
Move ordering: hash move, PV-Move, captures, promotions, killer moves, history heuristic
Evaluation with lazy eval and evaluation cache, Material, piece-square tables, pawn structure, open files, mobility, king safety

Tournament Play

DanaSah played on-line the CCT9, CCT10 and CCT12 CCT Tournaments, and the WCRCC 2007, the First Annual ACCA World Computer Rapid Chess Championship. Over the board, DanaSah played the WCCC 2009 blitz tournament in Pamplona, Spain ^[4], and won the 4th Chess Computer Cup in Carugate, Italy the same year, and further played the IOCSC 2010 and IOCSC 2012 Italian Open Chess Software Cups, the latter in the original category.

Photos & Games

CCC 2009, round 1, BremboCE vs DanaSah operated by Sonia ^[5] ^[6]

[Event "Computer Chess Cup 4"]
[Site "Carugate"]
[Date "2009.11.07"]
[Round "1"]
[White "BremboCE 0.6.2"]
[Black "DanaSah v.4.24"]
[Result "0-1"]
 
1.c4 b6 2.Nc3 Bb7 3.e4 e6 4.d4 Bb4 5.Qc2 Qh4 6.Bd3 f5 7.g3 Qh5 8.Bd2 Nf6 
9.f3 Nc6 10.Nb5 fxe4 11.fxe4 O-O 12.Ne2 a6 13.Nbc3 Bd6 14.O-O Ng4 15.h4 
Nb4 16.Rxf8+ Rxf8 17.Qb3 Bxg3 18.Rf1 Rxf1+ 19.Kxf1 Nh2+ 20.Kg1 Qf3 21.Nxg3 
Qxg3+ 22.Kh1 Nf3 23.Qxb4 Qh2#  0-1

Forum Posts

2005 ...

DanaSah 1.0 - GM Mario Gómez (1-2) by Pedro Castro, CCC, July 08, 2005
DanaSah 1.6 vs Pablo Ignacio Restrepo (Father) by Pedro Castro, CCC, July 13, 2005
danasah for linux by Pedro Castro, Winboard Forum, March 18, 2008 » Linux
Update DanaSah and Caligula by Pedro Castro, Winboard Forum, June 04, 2008 » Caligula

2010 ...

DanaSah 4.37 by Graham Banks, CCC, March 18, 2010
STS [1-10] Danasah 4.45 by Swaminathan, CCC, May 26, 2010 » Strategic Test Suite
DanaSah 5.00 by Ruxy Sylwyka, CCC, January 03, 2013
DanaSah and DanaSah-Z by Pedro Castro, CCC, June 20, 2013
Test DanaSah 5.06 by Pedro Castro, CCC, July 03, 2013

2015 ...

Chess on Android by Pedro Castro, CCC, April 19, 2016 » Chess for Android, Chess Engine Communication Protocol
DanaSah 6.1 for Windows and Android by Pedro Castro, CCC, May 25, 2016
DanaSah 6.5 by Pedro Castro, CCC, February 15, 2017
Danasah 7.0 by Sergio Martinez, CCC, October 09, 2017

External Links

Chess Engine

Misc

References

What links here?

Page	Date Edited
Amyan	Dec 10, 2013
Caligula PC	Dec 11, 2013
CCC 2009	Apr 29, 2015
CCT10	May 5, 2013
CCT12	Jan 28, 2018
CCT9	Aug 25, 2013
Chess Engine Communication Protocol	Mar 4, 2018
Chess for Android	Mar 1, 2018
DanaSah	Oct 9, 2017
Eigenmann Endgame Test	Jun 1, 2017
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
IGWT 2013	Jun 23, 2014
IGWT IV	May 17, 2017
IOCSC 2010	Jul 13, 2013
IOCSC 2012	Feb 18, 2014
Italian Computer Chess Championship	Sep 24, 2017
Pedro Castro	Apr 19, 2016
WCRCC 2007	Nov 21, 2016

Up one Level

Demolito

GerdIsenberg — Thu, 01 Mar 2018 17:28:15 GMT

Home * Engines * Demolito

		Demolito, an UCI compliant open source chess engine by Lucas Braesch, licensed under the GNU General Public License, written in C, first announced at OpenChess in January 2017 ^[1], a revised stable release published in June 2017 as completely rewritten new DiscoCheck featuring SMP and Chess960 ^[2], with executables available for Linux, Mac OS and Android.
Being Demolished ^[3]

Forum Posts

New UCI Engine: Demolito by lucasart, OpenChess Forum, January 14, 2017
Demolito Chess Engine by Norbert Raimund Leisner, CCC, January 16, 2016
Demolito UCI x64 25th January 2017 - 30th January 2017 by Norbert Raimund Leisner, CCC, February 08, 2017
New DiscoCheck is cooking by Lucas Braesch, CCC, June 04, 2017
New version: Demolito 2017-08-26 by Lucas Braesch, CCC, August 27, 2017
Demolito 20180301 released by Lucas Braesch, CCC, March 01, 2018

External Links

Chess Engine

Misc

References

^ New UCI Engine: Demolito by lucasart, OpenChess Forum, January 14, 2017
^ New DiscoCheck is cooking by Lucas Braesch, CCC, June 04, 2017
^ High Reach Demolition Excavator - Hydraulic demolition scissors on chassis CAT 365B L. Arm is 30 m long, Image by Michal Maňas, June 21, 2006, CC BY-SA 2.5, Wikimedia Commons
^ Demolito/types.h at master · lucasart/Demolito · GitHub
^ Demolito/recurse.h at master · lucasart/Demolito · GitHub

What links here?

Page	Date Edited
Demolito	Mar 1, 2018
DiscoCheck	Jun 23, 2017
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Ethereal	Mar 20, 2018
Xiphos	Apr 22, 2018

Up one Level

DiscoCheck

GerdIsenberg — Fri, 23 Jun 2017 08:02:15 GMT

Home * Engines * DiscoCheck

		DiscoCheck, (former DoubleCheck) a free open source engine under the GNU General Public License, written in C++. DiscoCheck is UCI compatible and can be compiled for Linux, Android ^[1] , Windows, and Mac OS X. It performs PVS alpha-beta with transposition table, null move pruning, LMR and various enhancements inside an iterative deepening framework with aspiration windows. DiscoCheck determines sliding piece attacks with magic bitboards, first using Pradu Kannan's implementation, later the GPL conform version by Borko Bošković as used in MinkoChess (then called Umko) ^[2] . Early versions used the author's own implementation of rotated bitboards, adapted from his earlier engine BibiChess 0.5. In June 2017, a new DiscoChess dubbed Demolito was announced, completely rewritten, featuring SMP and Chess960 ^[3] ^[4].
Disco ball ^[5]

Forum Posts

Discocheck "Boney M" is out by Lucas Braesch, CCC, June 28, 2012
DiscoCheck 4.0.0 (release candidate) by Lucas Braesch, CCC, January 27, 2013
DiscoCheck 4.1 released by Lucas Braesch, CCC, March 23, 2013
DiscoCheck 4.2 by Lucas Braesch, CCC, May 21, 2013
DiscoCheck 4.3 is out by Lucas Braesch, CCC, July 14, 2013
DiscoCheck 5.0 released by Lucas Braesch, CCC, October 25, 2013
DiscoCheck 5.1 by Lucas Braesch, CCC, December 08, 2013
DiscoCheck 5.2 released by Lucas Braesch, CCC, January 11, 2014
New DiscoCheck is cooking by Lucas Braesch, CCC, June 04, 2017

External Links

Chess Engine

lucasart/chess · GitHub
UCI and XBoard Engines for Android maintained by Aart Bik » Android
DiscoCheck at CCRL 40/40

Misc

Disco from Wikipedia
Disco (disambiguation) from Wikipedia
Frank Zappa - Disco Boy, YouTube Video
lineup: Frank Zappa, Adrian Belew, Tommy Mars, Peter Wolf, Patrick O'Hearn, Terry Bozzio, Ed Mann

References

^ UCI and XBoard Engines for Android maintained by Aart Bik
^ Double/DiscoCheck from WBEC Ridderkerk
^ New DiscoCheck is cooking by Lucas Braesch, CCC, June 04, 2017
^ GitHub - lucasart/Demolito: UCI Chess Engine
^ Disco ball Image by Sarah, February 24, 2010, CC BY 2.0, Wikimedia Commons

What links here?

Page	Date Edited
Demolito	Mar 1, 2018
DiscoCheck	Jun 23, 2017
Discovered Check	Feb 1, 2018
Draw Evaluation	Mar 12, 2018
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Gavon	Apr 30, 2018
Wrong color Bishop and rook pawn	Oct 19, 2017

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Wikispaces : chessprogramming - items matching description

Alfil

Table of Contents

C# Engine Project

Selected Games

See also

Forum Posts

2007 ...

2010 ...

2015 ...

External Links

Chess Engine

Misc

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Android-Chess

Table of Contents

Description

See also

External Links

References

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Bagatur

Table of Contents

Etymology

Technical Information

See also

Forum Posts

External Links

Chess Engine

Misc

References

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Betsabe

Table of Contents

Description

Board Representation

Search

Evaluation

Selected Games

See also

Forum Posts

External Links

Chess Engine

Misc

References

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BikJump

Table of Contents

Java Version

Platforms

History and Future Plans

External Links

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Bismark

Table of Contents

See also

Forum Posts

External Links

Chess Engine

Misc

References

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Cassandre

Table of Contents

See also

External Links

Chess Engine

Misc

References

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Cheese

Table of Contents

Selected Features

Board Representation

Search

Evaluation

Misc

See also

Forum Posts