Wikispaces : chessprogramming - items matching description

Abbess

GerdIsenberg — Sat, 10 Jun 2017 09:51:55 GMT

Home * Engines * Abbess

		Abbess, (Abbess Chess) a Winboard compliant chess engine by Robert Pope, written in C/C++, and first released in late 2016. Abbess features magic bitboards to determine sliding piece attacks, and so far, a pretty vanilla evaluation ^[1].
Abbess Eufemia Szaniawska ^[2]

Forum Posts

Alpha-Beta bug? by Robert Pope, CCC, June 30, 2015
Tapered Eval by Robert Pope, CCC, August 05, 2015 » Tapered Eval
Re: Tapered Eval by Robert Pope, CCC, August 06, 2015
Abbess 2016 by Robert Pope, CCC, December 19, 2016

External Links

Chess Engine

Misc

References

^ Abbess 2016 by Robert Pope, CCC, December 19, 2016
^ Portrait of Abbess Eufemia Szaniawska by Anonymous, oil on canvas, ca. 1768, current location National Museum, Warsaw, Wikimedia Commons

What links here?

Page	Date Edited
Abbess	Jun 10, 2017
Beaches	Jun 10, 2017
Engines	Mar 10, 2018
Robert Pope	Jun 10, 2017

Up one Level

Abrok

GerdIsenberg — Fri, 28 Nov 2014 11:16:58 GMT

Home * Engines * Abrok

Abrok,
a Winboard and UCI compliant chess engine by Roman Korba ^[1], written in C/C++, and first released in June 2002 ^[2].

Forum Posts

new engine? by Pavel, Winboard Forum, June 02, 2002
Better UCI support for Abrok, version 2.0602 released! by Leo Dijksman, Winboard Forum, June 02, 2002
A suicidal move by Abrok v2.0602 by Igor Gorelikov, Winboard Forum, June 11, 2002
Arasan-Abrok match by Jon Dart, CCC, March 04, 2004 » Arasan

External Links

References

^ "Your name, when spelled in reverse, may be something funny or cool", textreverse.com
^ Abrok from WBEC Ridderkerk

What links here?

Page	Date Edited
Abrok	Nov 28, 2014
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
Roman Korba	Nov 28, 2014

Up one level

AdaChess

aiavicoli — Tue, 08 Nov 2016 21:10:20 GMT

Home * Engines * AdaChess

		AdaChess, an Italian chess engine released under the GPL license, written in Ada by Alessandro Iavicoli ^[1] . The development started in early 2012 and the first version has been released on January 21, 2013. Full compliant to the rules of chess, it also recognize draws by insufficient material. AdaChess is a console application without own GUI, but supports the Chess Engine Communication Protocol aka WinBoard/XBoard protocol. Latest version is tagged 2.0 and has been released in August 2014. AdaChess played the IGT 2014, IGT 2015, and IGT 2016 over the board.
Ada Lovelace ^[2]

Forum Posts

AdaChess v2.0 released by Alessandro Iavicoli, CCC, August 16, 2014
AdaChess v2016.11.08-pre released, by Alessandro Iavicoli, CCC, November 08, 2016

External Links

References

^ The announced AdaChess by PreChess author José Lauro Strapasson is confirmed defunct.
^ Ada Lovelace by Margaret Sarah Carpenter, 1836, oil on canvas, Government Art Collection, Ada (Programmiersprache) - Wikipedia.de (German)

What links here?

Page	Date Edited
AdaChess	Nov 8, 2016
Alessandro Iavicoli	Nov 13, 2014
Engines	Mar 10, 2018
IGT 2014	Jul 15, 2017
IGT 2015	Oct 26, 2015
IGT 2016	Nov 23, 2016
IGT 2017	Oct 2, 2017
Tamerlane	May 18, 2017

Up one Level

Adam

GerdIsenberg — Tue, 24 Feb 2015 14:07:24 GMT

Home * Engines * Adam

		Adam, a chess engine by Dominique Longbien, written in C++, and first released in June 2002 as WinBoard engine ^[1]. Adam 3.3, released in March 2011, is compatible with UCI only. Adam was active over the board from 2002 until 2006 in participating several French Computer Chess Championship and French Programmers Tournaments. At the FCCC 2003, running in a Pentiom 3, 1.3 GHz, Adam searched about 250 KNPS ^[2].
Michelangelo: Creation of Adam ^[3]

Forum Posts

WB Engine 150, Adam by Dominique Longbien (France) is available by Frank Quisinsky, Winboard Forum, June 05, 2002
adam.exe,any chance for a non enchanched compile for us by mike schoonover, Winboard Forum, June 06, 2002
To Dominique Longbien: About Adam ... by Carlos, Winboard Forum, October 11, 2002
Help nalimov implementation by Dominique Longbien, Winboard Forum, April 16, 2003

External Links

Chess Engine

Adam from WBEC Ridderkerk
Adam 3.3 in CCRL 40/40

Misc

References

^ WB Engine 150, Adam by Dominique Longbien (France) is available by Frank Quisinsky, Winboard Forum, June 05, 2002
^ CHESS WIZARD Champion de France 2003 !
^ Detail of Michelangelo's The Creation of Adam, Fresco Sistine Chapel ceiling ca. 1512, source: Web Gallery of Art, Wikimedia Commons

What links here?

Page	Date Edited
Adam	Feb 24, 2015
Dominique Longbien	Aug 20, 2015
Engines	Mar 10, 2018
FCCC 2003	Jan 26, 2013
FCCC 2004	Jun 16, 2013
Massy 2002	Jan 2, 2018
Massy 2003	Jan 27, 2013
Massy 2004	Oct 27, 2016
Massy 2006	Jan 29, 2013
PixChess	Oct 27, 2016

Up one Level

AICE

GerdIsenberg — Wed, 29 Nov 2017 09:40:18 GMT

Home * Engines * AICE

		AICE, a free Chess Engine Communication Protocol and UCI compliant chess engine, written by Anastasios Milikas in C++ using the Standard Template Library, with Windows and Linux binaries available ^[1]. AICE is an Arena partner engine ^[2], and able to play Chess960, participated at the two open Livingston Chess960 Computer World Championships, the Chess960CWC 2005 and the Chess960CWC 2006.
AICE Logo ^[3]

Etymology

AICE stands for Artificially Intelligent Chess Engine, as explained by Anastasios, who also remarked "This is probably not a good name, since the engine is not intelligent! But I am working on it…” ^[4]. Anastasios initial intention with AICE was to use neural networks and genetic algorithms in order to optimize its evaluation weights, but he found that this was not productive and suitable for a chess evaluation function. They might be useful in time management, or controlling extentions or reductions ^[5].

Features

AICE is a bitboard based PV searcher with adaptive null move pruning in none PV-Nodes, using SEE, history- and killer heuristic to improve move ordering, and fractional extensions and non recursive reductions based on evaluation and history. In version 0.73, fail-high reductions were implemented in addition to null move pruning, but removed in in 0.97. Beside the transposition table and a smaller hash table for the quiescence search, AICE maintains a pawn hash table to cache once calculated pawn structure related data.

Forum Posts

AICE 0.85 by milix, Winboard Forum, December 21, 2004
AICE 0.86 by milix, Winboard Forum, December 30, 2004
Cycle VI-2005 6. Bundesliga result and games - AICE ! by Karl-Heinz Söntges, CCC, July 24, 2005
Aice 0.96 Linux: confused by a draw offer by Volker Pittlik, Winboard Forum, August 10, 2006
AICE 0.99.2 by milix, Winboard Forum, August 25, 2006

External Links

Chess Engine

milix AICE chess engine for both UCI and Winboard
Interview with the programmer of AICE by Alexander Schmidt and Frank Quisinsky, Arena Chess GUI 3.0 - Archive 8, 118, April 27, 2005
Portrait of Anastasios Mikilas, author of the Chess960 engine AICE by Mark Vogelgesang, July 21, 2005
Arena Chess GUI 3.0 - Aice
Aice 0.99.2 in CCRL 40/40
Aice 0.99.2 in CCRL 40/4 FRC

Misc

References

^ milix AICE chess engine for both UCI and Winboard
^ Arena Chess GUI 3.0 - Aice
^ milix AICE chess engine for both UCI and Winboard
^ Portrait of Anastasios Mikilas, author of the Chess960 engine AICE by Mark Vogelgesang, July 21, 2005
^ Interview with the programmer of AICE by Alexander Schmidt and Frank Quisinsky, Arena Chess GUI 3.0 - Archive 8, 118, April 27, 2005

What links here?

Page	Date Edited
AICE	Nov 29, 2017
Anastasios Milikas	Nov 29, 2017
Arena	Mar 16, 2018
Chess960CWC 2005	Jan 1, 2016
Chess960CWC 2006	Sep 25, 2014
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
iCE	Jan 4, 2016

Up one Level

Alaric

GerdIsenberg — Wed, 05 Mar 2014 07:57:26 GMT

Home * Engines * Alaric

		Alaric, (TerraPi) a WinBoard and UCI compliant chess engine written by Peter Fendrich in C++. It uses both bitboards and other structures to represent the board and to generate moves, and further utilizes transposition table, pawn hash table, history tables, and two killer slots per ply. Inside its principal variation search with null move pruning, a precise prediction of node types takes place in order to guide the search ^[1].
Alaric I ^[2]

Etymology

The chess engine Alaric is named after Alaric I (around 370 – 410 AD), King of the Visigoths from 395, who managed to walk with his forces right through the Roman empire, invaded Italy and sacked Rome in 410. Before that in the year 394 he served as a leader of Germanic troops under Roman command of Theodosius I but wasn't happy with how the Goths were treated ^[3].

Tournament Play

Alaric played the CCT9 with a result of 3½/7, and, under the handle TerraPi, a successful WCRCC 2007, becoming 6th with 8½/14 ^[4]. One year later, at the WCRCC 2008, Alaric even became 4th with 9½/14 ^[5]. Alaric's opening book was cooked by Günther Simon ^[6].

Selected Games

CCT9

CCT9, Buzz - Alaric ^[7]

[Event "CCT9"]
[Site "Internet Chess Club"]
[Date "2007.02.17"]
[Round "?"]
[White "Buzz"]
[Black "Alaric"]
[Result "0-1"]
 
1.c4 e6 2.d4 c5 3.d5 exd5 4.cxd5 Nf6 5.Nc3 d6 6.e4 Be7 7.Be2 Qa5 8.Kf1 O-O 
9.f4 Na6 10.e5 Ne8 11.a3 Qc7 12.Nf3 Bg4 13.Bxa6 bxa6 14.exd6 Nxd6 15.h3 Bd7 
16.g4 Bf6 17.Kg2 Rfe8 18.Re1 Rxe1 19.Nxe1 Re8 20.Nd3 Nc4 21.Qf3 Bd4 22.Kg3
h5 23.gxh5 Bf5 24.Kh2 Qb8 25.h6 Qb3 26.Ne5 Nxe5 27.fxe5 Bxe5+ 28.Kg2 Qc2+ 
29.Qe2 Be4+ 30.Kf2 Bd4+ 31.Kg3 Qb3 32.Kh4 Bf6+ 33.Bg5 Bxg5+ 34.Kxg5 f6+ 
35.Kh4 g5+ 36.Kh5 Kf7 37.Re1 Bg6+ 38.Kg4 Rxe2 39.Rxe2 Bd3 40.Rf2 Bf1 41.Rxf1 
Qxb2 42.Kg3 Qxc3+ 43.Rf3 Qe5+ 44.Kf2 Qxd5 45.Ke2 Kg6 46.h7 Kxh7 47.Rc3 Qd4 
48.Rd3 Qe5+ 49.Re3 Qb2+ 50.Kd3 Qd4+ 51.Ke2 c4 52.Re7+ Kh6 53.Kf1 Qd1+ 54.Re1 
Qf3+ 55.Kg1 c3 56.Rf1 Qg3+ 57.Kh1 c2 58.h4 Kh5 59.Rc1 Kxh4 60.Rxc2 Kh3 61.Re2 
Qf3+ 62.Kg1 Qxe2 63.a4 Qg2# 0-1

WCRCC 2008

WCRCC 2008, round 2, Alaric (TerraPi) - Arasan ^[8] ^[9]

[Event "WCRCC 2008"]
[Site "Internet Chess Club"]
[Date "2008.06.21"]
[Round "2"]
[White "TerraPi"]
[Black "Arasan"]
[Result "1-0"]
 
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 
9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 c6 12.d4 Bd6 13.Re1 Qh4 14.g3 Qh3 15.Re4 
g5 16.Qe1 Bf5 17.Nd2 Nf6 18.f3 Nxe4 19.Nxe4 Bxe4 20.fxe4 Be7 21.e5 Qg4 22.Qd1 
Qxd1+ 23.Bxd1 Rab8 24.Bf3 Rfc8 25.Be3 Kg7 26.Be4 h6 27.Rf1 a5 28.Kg2 Rc7 
29.Kf3 Rh8 30.h3 Rd8 31.Kg4 a4 32.Rd1 Rf8 33.Kf5 Rb8 34.Rh1 Rh8 35.h4 Rcc8 
36.b3 axb3 37.axb3 Rc7 38.hxg5 Bxg5 39.Bxg5 hxg5 40.Rxh8 Kxh8 41.Kxg5 Kg7 
42.c4 bxc4 43.bxc4 Rc8 44.g4 Rd8 45.d5 cxd5 46.cxd5 Rc8 47.d6 Rc1 48.Kf4 Rf1+ 
49.Ke3 Re1+ 50.Kf3 Kh6 51.Kf4 Kg7 52.g5 Rf1+ 53.Ke3 Rd1 54.Bd3 Kf8 55.g6 fxg6 
56.Bxg6 Rg1 57.Bd3 Re1+ 58.Kd4 Ke8 59.Bc4 Kd7 60.Kd5 Rd1+ 61.Kc5 Re1 62.e6+ 
Kd8 63.Kd4 Kc8 1-0

Forum Posts

About the "final" Terra and Alaric by Peter Fendrich, Winboard Forum, January 28, 2005
Alaric new version by Peter Fendrich, Winboard Forum, February 12, 2007
New Alaric by Peter Fendrich, Winboard Forum, March 30, 2007
Alaric 704 : 2607 by Patrick Buchmann, CCC, April 06, 2007
Alaric test for Fritz users by Peter Fendrich, CCC, July 01, 2007
Alaric 707 by Peter Fendrich, Winboard Forum, July 14, 2007
Alaric 707 : 2670 by Patrick Buchmann, CCC, July 15, 2007
Where is Alaric? by Mike Scheidl, CCC, January 08, 2008
some notes re Arasan games in ACCA by Jon Dart, CCC, June 22, 2008 » WCRCC 2008, Arasan
WCRCC: Sjeng-TerraPi sac by Jon Dart, CCC, June 25, 2008 » WCRCC 2008, Deep Sjeng
Operator for Alaric in World Comp Rapid Chess Championship by Peter Fendrich, CCC, August 12, 2009 » WCRCC 2009

External Links

Chess Engine

Misc

References

^ Alaric - About the engine
^ Portrait of Alaric in C. Strahlheim, Das Welttheater, 4. Band, Frankfurt a.M., 1836, Alaric I from Wikipedia
^ Alaric - About Alaric and the Goths
^ Alaric @ WCRCC tournament by Peter Fendrich, July 24, 2007
^ Alaric's results by Peter Fendrich, June 23, 2008
^ Alaric - Downloads
^ Buzz (Computer) vs Alaric (Computer) (2007) from chessgames.com
^ 2008 Second Annual ACCA World Computer Chess Championships - Results
^ some notes re Arasan games in ACCA by Jon Dart, CCC, June 22, 2008

What links here?

Page	Date Edited
Alaric	Mar 4, 2014
CCT9	Aug 25, 2013
Contempt Factor	Mar 10, 2018
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
Günther Simon	Jul 30, 2017
Peter Fendrich	May 19, 2017
Terra	Feb 11, 2015
Thread	Apr 22, 2018
WCRCC 2007	Nov 21, 2016
WCRCC 2008	Nov 21, 2016

Up one Level

Alarm

GerdIsenberg — Wed, 07 Jun 2017 11:42:43 GMT

Home * Engines * Alarm

		Alarm, (Deamon) a WinBoard compliant chess engine by Benny Antonsson and Erik Robertsson, written in C++. Alarm, the Diabolic Chess Engine ^[1], was first released in July 2003 ^[2], and was first mentioned in 2001 formerly called Deamon ^[3]. Alarm played four CCT Tournaments from 2003 to 2006, the CCT5, CCT6, CCT7 and the CCT8.
The Alarm ^[4]

Features

^[5]

Board Representation

Search

Evaluation

Misc

Opening Book from PGN-file

Forum Posts

Loggo for Deamon by Benny Antonsson, CCC, November 28, 2001
St.Andersen vs. Deamon 0.87A by Benny Antonsson, CCC, November 30, 2001 » StAndersen
Another Nordic seems to grow (especially to Odd Gunnar) by Günther Simon, Winboard Forum, December 01, 2001
Swedish programs by Benny Antonsson, CCC, December 04, 2001
Winboard engine Alarm is released by Benny Antonsson, CCC, July 16, 2003
Winboard engine Alarm is released by Benny Antonsson, Winboard Forum, July 16, 2003
Updated engine: Alarm 0.92.4 by Benny Antonsson, Winboard Forum, August 05, 2003
Testposition of Matador-Alarm CCT6 by Stefan Knappe, CCC, February 03, 2004 » CCT6
New version of Alarm by Benny Antonsson, CCC, May 12, 2004

External Links

Chess Engine

Misc

alarm - Wiktionary
Alarm - Wiktionary
alarm - Wiktionary (Swedish)
Alarm - Wiktionary (Swedish)
Alarm (disambiguation) from Wikipedia
Barcode Quartet at A L‘Arme!, Berlin 2013, YouTube Video
Elisabeth Harnik, Alison Blunt, Annette Giesriegl, Josef Klammer

References

^ Alarm - WinBoard Engine (Internet Archive)
^ Winboard engine Alarm is released by Benny Antonsson, CCC, July 16, 2003
^ Swedish programs by Benny Antonsson, CCC, December 04, 2001
^ Indian Alarm - 1884 · bronze sculpture showing an Ottawa Indian family on the move, halting as if alert to some imminent danger; located in Lincoln Park, Chicago at 3000 N. Four incised granite tablets at the base depict scenes from Ottawa life: "The Peace Pipe - The Corn Dance - Forestry - The Hunt." Sculptor: John J. Boyle, Photo by Alanscottwalker, April 29, 2011, CC BY-SA 3.0, Wikimedia Commons
^ Features based on Alarm - Technical and Alarm/Deamon - Revision log (Internet Archive)

What links here?

Page	Date Edited
Alarm	Jun 7, 2017
Benny Antonsson	Aug 17, 2014
CCT5	Feb 22, 2013
CCT6	May 29, 2014
CCT7	Dec 16, 2017
CCT8	Apr 6, 2013
Czolgista	Apr 20, 2013
Embracer	Jun 7, 2017
Engines	Mar 10, 2018
Erik Robertsson	Aug 17, 2014
StAndersen	Aug 17, 2014

Up one Level

Aldebaran

GerdIsenberg — Sun, 10 Feb 2013 12:27:44 GMT

Home * Engines * Aldebaran

		Aldebaran, a WinBoard compliant chess program written by Mauro Scarpa in C ^[1] , first released in April 2001 ^[2]. Aldebaran's aim was testing some automated tuning of the evaluation, and learning ^[3], and otherwise uses the common iterative deepening, quiescence search,and move ordering with PV and history heuristic ^[4]. Aldebaran played the CIPS 2001 and CIPS 2002 Italian Computer Chess Championships.
Aldebaran in the Taurus constellation ^[5]

Selected Games

CIPS 2002, round 2, Golem - Aldebaran

[Event "CIPS 2002"]
[Site "Pontedera"]
[Date "2002.06.01"]
[Round "2"]
[White "Golem 0.4"]
[Black "Aldebaran 0.7.0"]
[Result "0-1"]
 
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5 4.d4 e5 5.Qe2 Nc6 6.dxe5 Bb4 7.Bd2 Qxe5
8.Qxe5+ Nxe5 9.a3 Ba5 10.O-O-O Ne7 11.Nb5 Bb6 12.Bc3 f6 13.Be2 a6 14.Nd4
Nd5 15.Be1 Nf4 16.g3 Nxe2+ 17.Ndxe2 Bd7 18.h4 O-O-O 19.Nc3 Bc6 20.Rh3 Ng4
21.Rxd8+ Rxd8 22.h5 Nxf2 23.Bxf2 Bxf2 24.Nge2 Bf3 25.Nf4 Re8 26.Nd3 Be3+
27.Kb1 Kd7 28.Rh4 c5 29.Na4 Kd6 30.Rh2 c4 31.Nb4 Re5 32.Rh4 a5 33.Na2 b5
34.N4c3 Bg5 35.Rd4+ Kc5 36.Rd1 Bxd1 37.Nxd1 Re1 38.b4+ cxb3 0-1

Forum Posts

New Program Released: Aldebaran 0.4.0 by Gianluigi Masciulli, Winboard Forum, April 26, 2001
Alderaban is the nerve of steel... by P. Muzac, Winboard Forum, April 27, 2001
Aldebaran 0.5.1 Winboard Engine released! by Mauro Scarpa, CCC, May 03, 2001
Aldebaran 0.5.3 is out by Mauro Scarpa, Winboard Forum, May 16, 2001

External Links

Chess Engine

Misc

References

^ Golem's Page - G6
^ Aldebaran from WBEC Ridderkerk
^ Golem's Page - G6
^ Stato del progetto
^ The position of Aldebaran in the Taurus constellation, Aldebaran from Wikipedia

What links here?

Page	Date Edited
Aldebaran	Feb 10, 2013
CIPS 2001	Feb 3, 2013
CIPS 2002	Feb 9, 2013
Engines	Mar 10, 2018
Leila	May 8, 2017
Mauro Scarpa	Feb 10, 2013

Up one level

AliBaba

GerdIsenberg — Sun, 17 Aug 2014 09:44:53 GMT

Home * Engines * AliBaba

		AliBaba, an experimental chess engine by Dennis Breuker written for testing various hashing algorithms and replacement schemes as subject of his Ph.D. thesis Memory versus Search in Games ^[1]. With the permission of the author, a modified open source version was made available by Dann Corbit ^[2], later adopted to WinBoard by Jim Ablett ^[3]. AliBaba uses a 16x12 board and applies PVS alpha-beta with late move reductions within the obligatory iterative deepening framework with aspiration windows.
Ali Baba ^[4]

Forum Posts

Alibaba test bed (by Dennis Breuker) by Dann Corbit, CCC, March 28, 2000
Nunn test positions in Alibaba format by Pete Galati, CCC, March 30, 2000
Alibaba (Dennis Breuker - 1995) with winboard support by Jim Ablett, CCC, December 31, 2008

External Links

Chess Engine

Alibaba compiled by Jim Ablett, hosted by Kirill Kryukov

Misc

Ali Baba from Wikipedia
Ali Baba (disambiguation) from Wikipedia
Alibaba Group from Wikipedia
Kraan - Kraan Arabia, 1972, YouTube Video

References

^ Dennis Breuker (1998). Memory versus Search in Games. Ph.D. thesis, Maastricht University, pdf via Dennis Breuker's page
^ Alibaba test bed (by Dennis Breuker) by Dann Corbit, CCC, March 28, 2000
^ Alibaba (Dennis Breuker - 1995) with winboard support by Jim Ablett, CCC, December 31, 2008
^ Ali Baba by Maxfield Parrish, 1909, One Thousand and One Nights, Ali Baba from Wikipedia

What links here?

Page	Date Edited
AliBaba	Aug 17, 2014
Dennis Breuker	Dec 19, 2016
Disney's Aladdin Chess Adventures	May 15, 2014
Engines	Mar 10, 2018
Maastricht University	May 15, 2017

Up one Level

Alice

GerdIsenberg — Wed, 20 May 2015 20:46:41 GMT

Home * Engines * Alice

		Alice, an experimental open source chess engine under the GNU General Public License written by Sven Reichard in C++, compliant with the Chess Engine Communication Protocol. Alice is an object oriented program developed under GCC and Linux. The board is a vector of 64 pointers to pieces, while piece is an abstract class, with intermediate subclasses for common piece properties such as sliding versus none sliding pieces, and finally instantiable subclasses for the concrete pieces, like Pawn, Rook, etc., and "null pieces" for the empty squares ^[1]. Jim Ablett provides recent compiles for 32/64-bit Windows and Linux ^[2].
Alice in Wonderland ^[3]

Bitboards

Alice is an object oriented Bitboard engine, applying Rotated Bitboards to determine sliding piece attacks. Size of of the encapsulated Bitboard class is 8 by unsigned long long number ^[4].

namespace Alice
{
  class BitboardIterator;
  class Bitboard
  {
  public:
    typedef BitboardIterator Iterator;
    Bitboard( unsigned long long n = 0ull);
    ~Bitboard();
    //operator unsigned long long() const;
    Bitboard& operator|=( const Bitboard& b );
    Bitboard& operator&=( const Bitboard& b );
    Bitboard operator~( ) const;
    ...
  private:
    unsigned long long number;
    static std::vector<unsigned long long> setMask;
    static std::vector<unsigned long long> clearMask;
    ...
    static Bitboard fileAttacks[256][64];
    static Bitboard rankAttacks[256][64] ;
    static Bitboard upDiagonalAttacks[256][64];
    static Bitboard downDiagonalAttacks[256][64] ;
    ...
  };
};

Forum Posts

Gestatten: Alice by Sven Reichard, CCC, June 23, 2002
First draw against GnuChess by Sven Reichard, CCC, November 26, 2003
Alice new Winboard engine by Pablo, Winboard Forum, March 18, 2005
Alice: A reintroduction by Sven Reichard, CCC, July 15, 2011
Sorry guys, I have to ask for another engine: Alice by Arturo Ochoa, CCC, December 03, 2012

External Links

Chess Engine

Index of /chess/engines/Jim Ablett/ALICE by Jim Ablett, hosted by Kirill Kryukov

Misc

References

^ Re: Gestatten: Alice by Sven Reichard, CCC, June 25, 2002
^ Re: Sorry guys, I have to ask for another engine: Alice by Jim Ablett, CCC, December 08, 2012
^ Jessie Willcox Smith's illustration of Alice surrounded by the characters of Wonderland. (1923), Alice's Adventures in Wonderland from Wikipedia
^ Index of /chess/engines/Jim Ablett/ALICE by Jim Ablett, hosted by Kirill Kryukov, Src/include/Bitboard.h
^ Lewis Carroll's diagram of the story as a chess game, Through the Looking-Glass - Chess
^ Glen Robert Downey (1998). The Truth About Pawn Promotion: The Development of the Chess Motif in Victorian Fiction. Ph.D. thesis, University of Victoria pdf » Promotions
^ Lewis Carroll's chess problem | ChessVibes, July 14, 2008

What links here?

Page	Date Edited
Alice	May 20, 2015
Arturo Ochoa	May 4, 2017
Engines	Mar 10, 2018
iCE	Jan 4, 2016
La Dame Blanche	Oct 15, 2015
Mathematician	Apr 9, 2018
Promotions	Jun 6, 2017
RedQueen	Nov 13, 2017
Sven Reichard	Dec 28, 2016
Traversing Subsets of a Set	Oct 14, 2016

Up one Level

Amateur

GerdIsenberg — Sat, 25 Feb 2012 10:40:10 GMT

Home * Engines * Amateur

Amateur,
a free chess engine by Will Singleton written in C. Amateur's primary platform was the Macintosh, it was early used as engine for the Fixation internet chess interface. In July 2002 Version 2.0 was released compatible with the Chess Engine Communication Protocol. Amateur's version history ^[1] indicates the use of null move pruning in conjunction with multi-cut. Amateur played multiple online tournaments such as the CCT Tournaments at FICS and ICC.

History

Amateur is a development of a program already written in 1977 in 6502 assembly, then expanded in 1986 on the 68000 ^[2]:

My current program is a development of a program I wrote in 1977 in 6502 assembly, and then expanded in 1986 on the 68000. I converted it to C last year, and then over time put in all I learned from this newsgroup and a full set of ICCA journals. It's been a slow, incremental process, but at this point, right now, I can say that it's an honest program, and I know what's in it and how it works.

In 2002 Will released a WinBoard version, also mentioning starting from scratch again ^[3]:

I released it to kind of memorialize all the work that went into it, and I certainly have learned a lot. But I can't improve it much more, given the limitations of its "design." So the next version will be a new project, from scratch. The goal is to have a good, extensible design, using whatever knowledge I've gained along the way.

Forum Posts

Has this name been used before? by Willie Wood, CCC, December 12, 1997
Winboard for the Mac by Willie Wood, CCC, January 22, 1998
Under 2600 Club by Will Singleton, CCC, December 07, 1998
amateur experiment by Will Singleton, CCC, March 26, 2000
New versions of Fixation and Amateur released by Will Singleton, CCC, August 29, 2000
Re: Amateur new winboard engine by Will Singleton, CCC, July 12, 2002

External Links

References

^ Amateur from WBEC Ridderkerk
^ Re: Bionic Vs Crafty Debate: some data required by Will Singleton, CCC, January 25, 1999
^ Re: Amateur new winboard engine by Will Singleton, CCC, July 12, 2002

What links here?

Page	Date Edited
ACCA 2006	Jul 14, 2014
ACCA 2007	Jul 14, 2014
ACCA 2008	Jul 14, 2014
ACCA 2009	Jul 14, 2014
Amateur	Feb 25, 2012
CCT1	Dec 30, 2012
CCT2	Sep 7, 2012
CCT3	Feb 14, 2013
CCT4	Apr 22, 2013
CCT5	Feb 22, 2013
CCT6	May 29, 2014
CCT7	Dec 16, 2017
CCT9	Aug 25, 2013
Engines	Mar 10, 2018
Slow Chess	May 17, 2016
Terra	Feb 11, 2015
WCRCC 2008	Nov 21, 2016
Will Singleton	Mar 6, 2015

Up one Level

Amyan

GerdIsenberg — Tue, 10 Dec 2013 20:38:42 GMT

Home * Engines * Amyan

		Amyan, a chess engine written by Antonio Dieguez running under Windows, compliant to the Chess Engine Communication Protocol aka WinBoard, and the Universal Chess Interface (UCI). Amyan was first released in 2000, the still available Amyan 1.522 Version from 2002 has an own GUI. The program is written in C++ ^[1], a ported Java applet is able to run in a Web browser using a Java virtual machine ^[2]. Amyan played the CCT4, CCT5 and CCT6 CCT Tournaments, and became the First Annual ACCA Americas' Computer Chess Champion at ACCA 2006, to further play the ACCA 2009. At the 4th Chess Computer Cup 2008 in Carugate, Italy, Amyan was tied with winner DanaSah, both with 5/6 and also equal sum of opponent scores, but Amyan played the draw versus Chiron in round 2, DanaSah in round 5 gaining higher cumulative score.
Amyan 1.522 (GUI ^[3]

Description

Description of Board Representation, Search and Evaluation loosely based on the readme.txt file of Amyan 1.72, by Antonio Dieguez ^[4].

Board Representation

Amyan's mailbox board array has index 11 for a1 and 88 for h8, so it is apparently a 10*10 board with following index mapping. It further uses bitboards mainly for pawns.

int mailbox[100] = {
   -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
   -1,  0,  1,  2,  3,  4,  5,  6,  7, -1,
   -1,  8,  9, 10, 11, 12, 13, 14, 15, -1,
   -1, 16, 17, 18, 19, 20, 21, 22, 23, -1,
   -1, 24, 25, 26, 27, 28, 29, 30, 31, -1,
   -1, 32, 33, 34, 35, 36, 37, 38, 39, -1,
   -1, 40, 41, 42, 43, 44, 45, 46, 47, -1,
   -1, 48, 49, 50, 51, 52, 53, 54, 55, -1,
   -1, 56, 57, 58, 59, 60, 61, 62, 63, -1,
   -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
};
 
int mailbox64[64] = {
   11, 12, 13, 14, 15, 16, 17, 18,
   21, 22, 23, 24, 25, 26, 27, 28,
   31, 32, 33, 34, 35, 36, 37, 38,
   41, 42, 43, 44, 45, 46, 47, 48,
   51, 52, 53, 54, 55, 56, 57, 58,
   61, 62, 63, 64, 65, 66, 67, 68,
   71, 72, 73, 74, 75, 76, 77, 78,
   81, 82, 83, 84, 85, 86, 87, 88,
};

Search

Principal Variation Search
Null Move Pruning with R=2
Killer Heuristic with several Killer moves
Futility Pruning
Late Move Reductions
Captures ordered by MVV-LVA
Extensions restricted to one ply per line, except check evasions
Transposition Table

Evaluation

Evaluation Hash Table
Pawn Hash Table
Doubled and isolated pawns depending on file
Pawn Center
Passed Pawns depending on rank
Connected Passed Pawns
Blockade of Stop
Tarrasch Rule
King Safety
King Tropism
Pawn Storms
Mobility with King and center considerations
Rooks on (semi) open files
Rook on Seventh
Piece-Square Tables for knights, bishops and queens
Knight outposts
Scoring of some pins

Selected Games

ACCA 2006, round 2, Amyan - Crafty ^[5]

[Event "ACCA 2006"]
[Site "ICC"]
[Date "2006.11.08"]
[Round "2"]
[White "Amyan"]
[Black "Crafty"]
[Result "1-0"]
 
1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d5 5.cxd5 Nxd5 6.e4 Nxc3 7.bxc3 c5
8.Bb5+ Bd7 9.Be2 cxd4 10.cxd4 Bc6 11.Qc2 Bxd4 12.Nxd4 Qxd4 13.Bb2
Qb4+ 14.Bc3 Qc5 15.O-O O-O 16.Rac1 Rd8 17.Qb2 Qg5 18.f4 Qh6 19.Ba5
Rd7 20.Rc4 b6 21.Bb4 a5 22.Bd2 Rd8 23.Rfc1 Be8 24.Be3 Nd7 25.e5 e6
26.Rc7 a4 27.Bb5 Qh5 28.Qf2 Qf5 29.Be2 g5 30.g4 Qg6 31.h4 gxh4 32.
Qxh4 Nc5 33.Bf3 Rab8 34.Bg2 Rd3 35.Re1 Qg7 36.g5 Rc3 37.Re2 Qg6 38.
Bxc5 Rxc5 39.Rxc5 bxc5 40.Be4 Qg7 41.Rh2 h6 42.Qf2 hxg5 43.Qxc5 Rd8
44.Bh7+ Qxh7 45.Rxh7 Kxh7 46.Qe7 Rb8 47.Qxg5 Rb1+ 48.Kf2 Bb5 49.Ke3
Rf1 50.Qg2 Re1+ 51.Kd4 Rc1 52.Qb7 Rc4+ 53.Ke3 Be8 54.Qe7 Rc3+ 55.Kd4
Rc8 56.f5 exf5 57.e6 Kg6 58.Ke5 1-0

Forum Posts

interesting game, Crafty vs Amyan by Antonio Dieguez, CCC, September 18, 2000
About Pepito and Amyan by José Carlos, CCC, September 24, 2000 » Pepito
CCT5 - ok, a short comment, just Amyan... by Antonio Dieguez, CCC, January 20, 2003 » CCT5
Older Versions of Amyan by Swaminathan, CCC, October 24, 2008
just amyan... by Antonio Dieguez, CCC, September 14, 2009
Amyan 1.6 : 2477 by Patrick Buchmann, CCC, September 17, 2009
Amyan 1.71 : 2490 by Patrick Buchmann, CCC, October 18, 2009
move in the pv at starting position by Antonio Dieguez, CCC, November 05, 2009

External Links

References

^ Amyan from WBEC Ridderkerk
^ Amyan ...
^ Amyan <- Antonio Diéguez, Amyan 1.522 screenshot
^ readme.txt, download Amyan 1.72, Amyan <- Antonio Diéguez
^ The 2006 First Annual ACCA Americas' Computer Chess Championships - Results - PGN download

What links here?

Page	Date Edited
ACCA 2006	Jul 14, 2014
ACCA 2009	Jul 14, 2014
ACCA Americas' Computer Chess Championship	Nov 20, 2014
Amy	May 9, 2017
Amyan	Dec 10, 2013
Antonio Dieguez	Dec 22, 2012
CCC 2009	Apr 29, 2015
CCT12	Jan 28, 2018
CCT4	Apr 22, 2013
CCT5	Feb 22, 2013
CCT6	May 29, 2014
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
José Carlos Martínez Galán	Feb 19, 2017
Pepito	Nov 27, 2014
Swaminathan Natarajan	Jun 17, 2015

Up one Level

Anatoli

GerdIsenberg — Wed, 22 Oct 2014 19:48:56 GMT

Home * Engines * Anatoli

		Anatoli, a WinBoard compliant chess engine by Martin Giepmans, first released in April 2008 and freely available via Leo Dijksman's WBEC Ridderkerk site ^[1]. Like Martin's earlier engine SpiderChess, Anatoli is written in Delphi. Martin named it after Anatoly Karpov (Dutch transliteration Anatoli Karpov) ^[2] because he admired Karpov's subtle playing style and had the hope he might teach Anatoli to play a bit like Karpov, though ^[3] ^[4].
Anatoly Karpov 1967 ^[5]

Forum Posts

Anatoli is released... by Dr.Wael Deeb, CCC, April 10, 2008
Re: Anatoli is released... by Martin Giepmans, CCC, April 11, 2008
LMR? by Martin Giepmans, CCC, April 12, 2008 » Late Move Reductions
Anatoli 0.35k released by Graham Banks, CCC, April 22, 2008

External Links

Chess Engine

Anatoli from WBEC Ridderkerk
Anatoli 0.35k in CCRL 40/40

Misc

References

^ Anatoli from WBEC Ridderkerk
^ Re: Anatoli is released... by Martin Giepmans, April 11, 2008
^ Re: Anatoli is released... by Martin Giepmans, April 18, 2008
^ Anatoly, Анатолий, is a common Russian and Ukrainian male name, derived from the Greek name Ανατολιος Anatolios, meaning "Sunrise." Other common Russian transliterations are Anatoliy and Anatoli. The French version of the name is Anatole. Other variants are Anatol and more rarely Anatolio, from Anatoly from Wikipedia
^ Zesde Niemeyer Jeugdschaaktoernooi te Groningen. Antoni Karpov (Rusland), Photo by Jac. de Nijs / Anefo, December 27, 1967, Nationaal Archief, Anatoli Karpov - Wikipedia.nl

What links here?

Page	Date Edited
Anatoli	Oct 22, 2014
Engines	Mar 10, 2018
Late Move Reductions	Sep 25, 2017
Martin Giepmans	Jan 7, 2016
SpiderChess	Oct 4, 2017

Up one Level

AnMon

GerdIsenberg — Fri, 17 Nov 2017 20:37:38 GMT

Home * Engines * AnMon

		AnMon, a chess program by Christian Barreteau, one of the first engines which supported WinBoard aka the Chess Engine Communication Protocol, later also UCI. AnMon was available as Young Talent by ChessBase running under the Fritz6 GUI ^[1] , and is Arena partner engine ^[2] . It is a tactically very strong MTD(f) searcher. AnMon participated at various French Computer Chess Championships and had its debut at the FCCC 1995, further the WMCCC 1997 in Paris, and multiple Massy French Programmers Tournaments, winning Massy 2000, Massy 2005 and Massy 2006.
Floor mosaic of Chigi Chapel ^[3] ^[4]

Photos & Games

Massy 2002, GNU Chess - AnMon, Pascal Tang, Dominique Longbien, Christian Barreteau, Jean-Philippe Louguet ^[5]

[Event "Massy 2002"]
[Site "Massy, France"]
[Date "2002.05.26"]
[Round "1"]
[White "GNU Chess"]
[Black "AnMon521_UCI"]
[Result "0-1"]
 
1.e4 e5 2.Nf3 Nc6 3.Bb5 g6 4.c3 d6 5.d4 Bd7 6.Qb3 Na5 7.Bxd7+ Qxd7 8.Qd5 Nc6
9.dxe5 dxe5 10.Qxd7+ Kxd7 11.O-O Nf6 12.Nbd2 a5 13.Nc4 Re8 14.Re1 h6 15.a4 Kc8
16.b3 Nd7 17.Nfd2 Nc5 18.Ba3 Nd3 19.Re3 Rd8 20.Rf3 Bxa3 21.Rxa3 Nc5 22.Ra1 Rhf8
23.Rh3 Rd7 24.f3 h5 25.Rg3 Ne6 26.Ra2 Rd3 27.Rc2 Rfd8 28.Nf1 h4 29.Rg4 h3
30.Rh4 hxg2 31.Kxg2 Nf4+ 32.Kf2 R3d1 33.Rh7 Nd3+ 34.Kg1 Ne1 35.Rf2 Rf8 36.Ncd2 Nd3
37.Rg2 Rc1 38.c4 Nd4 39.Rg4 Rc3 40.Rgh4 Ne1 41.R4h3 Nexf3+ 42.Kg2 Ne1+ 43.Kh1 Nd3
44.R7h8 Rxh8 45.Rxh8+ Kd7 46.Rf8 Ke6 47.Re8+ Kf6 48.Kg2 Nc5 49.h4 c6 50.h5 gxh5
51.Rh8 Ncxb3 52.Nxb3 Nxb3 53.Ng3 Rxc4 54.Rh6+ Kg5 55.Rh7 h4 56.Rg7+ Kf6 0-1

Description

given in 1997 from the ICGA site ^[6] :

The program AnMon (half ANgel, half deMON) is written in C and run under Windows NT. It was developed as a hobby for 8 years. AnMon participated in the 1995, and 1996 French Microcomputer Chess Championship. It is based on MTD(f) and uses null-move pruning, selective extensions, transposition tables, killer heuristic, and quiescence search. AnMon is a tactical program.

AnMon uses an opening book containing about 100.000 positions. It was established by the program. AnMon search about 50.000 nodes per second on a Pentium 2 at 233 MHz.

Forum Posts

AnMon 4.25 download ! by Frank Quisinsky, CCC, June 22, 1999
Anmon is Really Very Strong by Fernando Villegas, CCC, June 22, 1999
Anmon question ! Is anmon using alpha-beta ? by Thorsten Czub, CCC, August 16, 1999
AnMon 5.06 for Download by Đorđe Vidanović, CCC, February 01, 2000
ANMON won the computer chess tourney in Massy ! by Frank Quisinsky, Winboard Forum, May 23, 2000
UCI AnMon 5.19 by Christian Barreteau available! by Frank Quisinsky, CCC, February 26, 2002
Re: SCOTD (AnMon 5.21) by Kurt Utzinger, CCC, October 11, 2003
AnMon 5.40 by Christian Barreteau is available ... long text! by Frank Quisinsky, CCC, August 14, 2004
Changes in AnMon ... by Frank Quisinsky, CCC, August 15, 2004
AnMon 5.60 UCI available by Michael Diosi, CCC, January 30, 2006
New version of AnMon since 3 years ... by Leo Dijksman, CCC, February 03, 2009
AnMon 5.66 : 2436 by Patrick Buchmann, CCC, February 04, 2009
AnMon 5.75 : 2452 by Patrick Buchmann, CCC, July 24, 2009

External Links

Chess Engine

Misc

References

^ Support - ChessBase, May 28th, 2000
^ Arena Chess GUI 3.0 - AnMon
^ Santa Maria del Popolo in Rome, Italy: Chigi Chapel. Incrustated floor with the coats of arms of the House of Chigi hold by the Death, Photo by Bernd Brägelmann, Agostino Chigi from Wikipedia
^ Angels & Demons from Wikipedia
^ Massy 2002/05/26 - Tournoi de programmes d'Echecs from LUDOCHESS - Les jeux d'Echecs 100% pur Java by Stéphane Nguyen
^ AnMon's ICGA Tournaments

What links here?

Page	Date Edited
Amyan	Dec 10, 2013
AnMon	Nov 17, 2017
Arena	Mar 16, 2018
Bernard Brioit	Jan 10, 2015
Capture (program)	Jan 8, 2016
ChessBase	Nov 25, 2017
Christian Barreteau	Jan 8, 2016
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
FCCC 1995	Jul 27, 2015
FCCC 1996	Jul 25, 2014
FCCC 1998	Oct 22, 2012
FCCC 1999	Jan 29, 2013
FCCC 2000	Jan 26, 2013
FCCC 2004	Jun 16, 2013
Fernando Villegas	Aug 15, 2016
French Programmers Tournament	Jan 26, 2013
Fruit	Sep 27, 2016
Massy 2001	Jan 28, 2013
Massy 2002	Jan 2, 2018
Massy 2004	Oct 27, 2016
Massy 2005	Jan 29, 2013
Massy 2006	Jan 29, 2013
WMCCC 1997	Apr 4, 2017

Up one Level

Ant

GerdIsenberg — Mon, 01 Jun 2015 22:07:20 GMT

Home * Engines * Ant

		Ant, a WinBoard compatible chess engine by Tom Vijlbrief, written in C++, at times supported by Hans Secelle ^[1] and Albrecht Heeffer. Ant regularly participates at Dutch Open Computer Chess Championships and International CSVN Tournaments and had its debut at the DOCCC 1995. It further played the Aegon 1996 and Aegon 1997 human machine tournaments, the IPCCC 1998, and the Livingston Chess960 Computer World Championships in 2005 and 2006.
M. C. Escher, Ant, 1943 ^[2]

Photos & Games

Ant beats Tiger

ICT 2002: round 2, Ant - Chess Tiger, Hans Secelle and Hans van der Zijden ^[3] ^[4]

[Event "ICT 2002"]
[Site "Leiden NED"]
[Date "2002.05.31"]
[Round "02"]
[White "Ant"]
[Black "Chess Tiger"]
[Result "1-0"]
 
1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.d4 Nxe4 5.d5 Ne7 6.Nxe5 Ng6 7.Nxg6 hxg6
8.Qe2 Qe7 9.Bf4 d6 10.Na3 Bf5 11.f3 Nf6 12.Qxe7+ Bxe7 13.Bb5+ Nd7 14.g4 g5
15.Be3 Bg6 16.O-O a6 17.Bxd7+ Kxd7 18.Rf2 Bf6 19.Rd1 Rae8 20.Bc1 Rh3
21.Nc4 Reh8 22.Ne3 Be5 23.Nf1 f6 24.Be3 Re8 25.Kg2 Rh7 26.c4 b5 27.c5 dxc5
28.Bxc5 Reh8 29.Kg1 Bf7 30.b3 Rh3 31.Rd3 R8h4 32.Rd1 Bg8 33.Kh1 Rh6
34.Rd3 Bf7 35.a4 R6h4 36.axb5 axb5 37.Rg2 Bg6 38.Re3 Kc8 39.b4 Bf7
40.Rd3 c6 41.Ra2 Bxd5 42.Ra8+ Kd7 43.Ra7+ Ke8 44.Re7+ Kd8 45.Kg2 Bb2
46.Rxg7 Rh6 47.Re3 Rh8 48.Ree7 Bxf3+ 49.Kg1 Bxg4 50.Rb7 Be5 51.Ra7 Bd7
52.Raxd7+ Kc8 53.Ra7 Kb8 54.Rgb7+ Kc8 55.Rb6 R8h7 56.Rxc6+ Kb8
57.Ra5 Kb7 58.Rb6+ Kc8 59.Kg2 Kd7 60.Ra7+ Kc8 61.Rc6+ Kb8 62.Ra5 Rb3
63.Rxb5+ Rb7 64.Bd6+ Bxd6 65.Rxb7+ Kxb7 66.Rxd6 Rb2+ 67.Kf3 f5 68.Rd5 Rb3+
69.Ke2 Rb2+ 70.Nd2 Rxb4 71.Rxf5 g4 72.Ke3 Ra4 73.Ne4 Kb6 74.Rf6+ Kc7
75.Nf2 Kd7 76.Rg6 Ra3+ 77.Ke4 Ra4+ 78.Kf5 Ra5+ 79.Kxg4 Ra2 80.Kf3 Ra3+
81.Kf4 Ke7 82.h4 Ra5 83.Rg5 Ra4+ 84.Ne4 Ra2 85.h5 Rh2 86.Rg7+ Kf8
87.Rh7 Kg8 88.Ra7 Rh4+ 89.Kf5 Kf8 90.Kf6 Rf4+ 91.Kg6 Rxe4 92.Ra8+
1-0

Ant draws Shredder

ICT 2005, round 9, Ant - Shredder ^[5]

[Event "ICT 2005"]
[Site "Leiden NED"]
[Date "2005.06.05"]
[Round "9"]
[White "Ant"]
[Black "Shredder"]
[Result "1/2-1/2"]
 
1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. O-O c5 
7. Bd3 Nbd7 8. Re1 b6 9. e4 cxd4 10. e5 Nd5 11. Nxd4 Bb7 12. Nxe6 fxe6 
13. Qh5 Ke7 14. Bxh7 Qc7 15. Bg5 N5f6 16. exf6 gxf6 17. Bd2 Qc5 
18. Qxc5 Nxc5 19. Bc2 Rd8 20. Be3 Bh6 21. f4 Nd3 22. Bxd3 Rxd3 
23. g3 Bg7 24. Nc3 Bf3 25. h4 f5 26. Bxb6 Rb8 27. Bc5 Kf7 28. Rab1 Bxc3
29. bxc3 Rxb1 30. Rxb1 Bd5 31. Bf2 Rxc3 32. Ra1 Ra3 33. Kf1 Kg6 
34. Ke2 a5 35. Kd2 1/2-1/2

When Ants Play Chess

Alexis Drogoul (1993, 1995). When Ants Play Chess (Or Can Strategies Emerge From Tactical Behaviors?) MAAMAW ’93, CiteSeerX pdf

Forum Posts

Ant 4.13 (Dutch-ch 99 Leiden) ! by Frank Quisinsky, CCC, November, 08, 1999
Dutch Championship : Nimzo 8 - Ant by Johan Havegheer, CCC, October, 14, 2000
Trapper Ant by Ulrich Türke, CCC, May 18, 2003

External Links

Chess Engine

Misc

Ant's ICGA Tournaments, Connect6 program
Ant from Wikipedia
Ant (disambiguation) from Wikipedia
Netherlands Antilles from Wikipedia
Apache Ant from Wikipedia
Langton's ant from Wikipedia
Albert Mangelsdorff, Jaco Pastorius, Alphonse Mouzon - Ant Steps On An Elephant's Toe, Trilogue, Berlin Jazz Festival, November 06, 1976, Berliner Philharmonie, YouTube Video

References

^ Some news about H. Secelle (author of Bionic) by Johan Havegheer, Winboard Forum, September 08, 1999
^ Picture gallery "Back in Holland 1941 - 1954" from The Official M.C. Escher Website
^ A black day for France by Eric van Reem, ChessBase News, June 01, 2002
^ Ant vs Chess Tiger 14.0 48...Bxf3 by K. Burcham, CCC, June 01, 2002
^ Leiden(9) surprise: Ant-Shredder 1/2-1/2 by Theo van der Storm, CCC, June 05, 2005

What links here?

Page	Date Edited
Aegon 1996	Jan 22, 2017
Aegon 1997	Apr 7, 2017
Albrecht Heeffer	Sep 6, 2016
Ant	Jun 1, 2015
Bionic Impakt	Sep 6, 2014
Chess960CWC 2005	Jan 1, 2016
Chess960CWC 2006	Sep 25, 2014
De Bruijn sequence	Feb 20, 2018
DOCCC 1995	Jun 7, 2016
DOCCC 1996	Jun 7, 2016
DOCCC 1997	Aug 15, 2015
DOCCC 1998	Feb 25, 2018
DOCCC 1999	Aug 15, 2015
DOCCC 2000	Aug 15, 2015
DOCCC 2001	Aug 15, 2015
DOCCC 2002	Nov 24, 2017
DOCCC 2003	Aug 17, 2016
DOCCC 2004	Nov 19, 2016
DOCCC 2006	Aug 27, 2016
DOCCC 2007	Aug 15, 2015
Engines	Mar 10, 2018
Hans Secelle	Nov 2, 2012
ICT 2001	Oct 14, 2015
ICT 2002	Nov 19, 2016
ICT 2003	Aug 18, 2016
ICT 2004	Aug 17, 2016
ICT 2005	Oct 14, 2015
ICT 2006	Oct 14, 2015
IPCCC 1998	Feb 25, 2018
Jan Kozak	Mar 17, 2015
Johan Havegheer	Feb 2, 2013
Matant	Aug 14, 2013
Tom Vijlbrief	Mar 6, 2015
XiniX	Jan 7, 2016

Up one Level

Anubis

GerdIsenberg — Tue, 29 Sep 2015 19:22:39 GMT

Home * Engines * Anubis

		Anubis, a private WinBoard compliant chess engine by José Carlos Martínez Galán, its development started in 2003 as successor of Averno. Anubis is a bitboard engine, and in its first version generated sliding piece attacks using Kogge-Stone-like algorithms ^[1]. Completely re-written in 2012 ^[2], Anubis played some private tournaments by Sergio Martinez ^[3].
Anubis ^[4]

Forum Posts

Re: Surprising performance {to me} by GLC 3 verses Comet B60 by Jose Carlos, Winboard Forum, April 02, 2003
Endgame test series by Jose Carlos, Winboard Forum, April 08, 2003
Re: Attack table by Jose Carlos, Winboard Forum, October 07, 2004
C++ templates question by José C. Martínez Galán, CCC, January 18, 2012
Re: Ponder=on in cutechess-cli? by José C. Martínez Galán, CCC, April 04, 2012

External Links

References

^ Re: Attack table by Jose Carlos, Winboard Forum, October 07, 2004
^ Re: Ponder=on in cutechess-cli? by José C. Martínez Galán, CCC, April 04, 2012
^ Spain Individual Championship by Sergio Martinez, CCC, October 22, 2012
^ Anubis, the jackal headed god of Ancient Egypt, Image by Jeff Dahl, December 21, 2007, CC BY-SA 4.0, based on New Kingdom tomb paintings, in Richard H. Wilkinson (2003). The complete gods and goddesses of ancient Egypt. Thames & Hudson, Wikimedia Commons, Anubis from Wikipedia

What links here?

Page	Date Edited
Anubis	Sep 29, 2015
Averno	Sep 28, 2015
CXG Sphinx	Jun 23, 2017
Engines	Mar 10, 2018
Influence Quantity of Pieces	Jul 21, 2017
José Carlos Martínez Galán	Feb 19, 2017
Pharaon	Sep 2, 2017
Sfinks	Dec 25, 2017

Up one level

Arasan

GerdIsenberg — Sun, 08 Apr 2018 18:38:18 GMT

Home * Engines * Arasan

அரசன்		Arasan, an open source engine written by Jon Dart in C++. Arasan's development started in the early 90s, the first version, released in 1994 was a 16-bit program running under Windows 3.1 using an 8x8 Board, incremental updated attack tables and its own GUI, evolving to a portable 32-bit and later 64-bit program, utilizing bitboards to determine its sliding piece attacks with rotated bitboard lookups. In 2008, rotated were replaced by Magic bitboards, which gave Arasan about a 20-25% speedup ^[1]. Despite its own GUI, Arasan early supported the Chess Engine Communication Protocol and later UCI as well, to run under Windows, Linux and Mac OS ^[2]. The latest version of Arasan and all major versions, including Version 1.0 from March 1994, are available as source code from the Arasan.org site ^[3] . Jon's change logs, bug fix reports and tournament reports over the time are available from forum archives, as well the recent ones from the Arasan blog ^[4]
அரசன் ^[5] (Arasan) , King in Tamil language ^[6]

Bitboard Trials

Jon Dart, May 1996 ^[7]

Lately I've been working on a new major release of Arasan. I have spent the last few months working on the search engine, trying to improve speed and performance. I tried some experiments with a bitboard move representation, but I have backed off on that for now.

With bitboards, I got a nice reduction in tree size (bitboards allow a more accurate swap-down analysis than I had before, and this improves move ordering and allows better "culling" of losing captures in the quiescence search).

However, currently the program relies pretty heavily on incrementally generated attack information, and I didn't have that implemented to work with bitboards, so I had to compute attacks as needed. Unfortunately, the current program "needs" to do this much more often than Crafty does, so the loss from computing attacks more than balanced out the gains from bitboards. This is fixable, I'm sure, but I've put off further work on it for now.

Magic Bitboards

Jon Dart, August 2008 ^[8] :

The main change has been to re-work the code to use "magic" bitboard logic instead of rotated bitboards. This has given about a 20-25% speedup. I have also had to re-write the evaluation function to take advantage of bitboard attack functions for king safety and mobility.

PEXT/PDEP Bitboards

Arasan 20.3, released in November 2017, performs PEXT/PDEP Bitboards if compiled for the BMI2 instruction set ^[9] to replace Fancy Magic Bitboards in looking up sliding piece attacks ^[10]

Automated Tuning

Arasan 19.2, released in November 2016, now applies Texel's Tuning Method by default and supports the Adam gradient descent algorithm ^[11] ^[12].

Tournament Play

Arasan went online in December, 1996 ^[13] , and played almost all major online computer chess tournaments, such as CCT Tournaments, ACCA Americas' Computer Chess Championship, ACCA World Computer Rapid Chess Championship, TCEC, and International Gsei Web Tournaments. Arasan 15.1 ^[14] won the ACCA 2012 ^[15] , Arasan 16.0 the WCRCC 2013 ^[16] . Over the board, Arasan is active at the CSVN Programmers Tournaments operated by Tessa Pijl. Arasan was runner-up behind The Baron in May 2014 at the PT 46 one point behind, as well in June 2015 at the PT 48 with the same score according to the tiebreak rules ^[17].

Photos & Games

PT 48, Two Kings fighting, Johan de Koning and Tessa Pijl in Arasan vs. The King ^[18]

[Event "PT 48"]
[Site "Leiden, NL"]
[Date "2015.06.14"]
[Round "7"]
[White "Arasan"]
[Black "The King"]
[Result "1-0"]
 
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bd3 a6 
9.a4 b4 10.Ne4 c5 11.Nxf6+ Nxf6 12.dxc5 Bxc5 13.e4 Bb7 14.Qe2 O-O 15.O-O e5 
16.Bg5 h6 17.Bh4 Qd6 18.Bg3 Rfe8 19.Rfd1 Re7 20.Bh4 Qc6 21.Rac1 Rc8 22.Rc4 Re6 
23.Bxf6 Rxf6 24.Rdc1 Qb6 25.Kh1 a5 26.Qc2 b3 27.Qe2 Qd6 28.R4c3 Rf4 29.g3 Rf6 
30.Bc4 Rb8 31.Rxb3 Bb4 32.Rd3 Qc7 33.Kg2 Rf8 34.Rdd1 Rc6 35.b3 Re8 36.Kg1 Rc8 
37.Rd5 Re6 38.Rd3 Rf6 39.Rcd1 Re8 40.Nh4 Qb6 41.Nf5 Rf8 42.Rf3 Kh8 43.Nh4 Kg8 
44.Rd7 Bc8 45.Rd5 Rd6 46.Rxd6 Qxd6 47.Rd3 Qc7 48.Qh5 Kh7 49.Nf3 f6 50.Nh4 Bd7 
51.Bf7 Bc8 52.Bg6+ Kg8 53.Bf5 Qc2 54.Qf3 Re8 55.Kg2 Rf8 56.Rd5 Bc5 57.Bxc8 Rxc8 
58.Rd7 Bf8 59.Qg4 h5 60.Qg6 Qe2 61.Nf3 Qc2 62.Qf7+ Kh8 63.Qxh5+ Kg8 64.Nd2 Rb8 
65.g4 Rc8 66.Qf7+ Kh8 67.Qh5+ Kg8 68.Qg6 Kh8 69.Qf5 Kg8 70.g5 fxg5 71.Nf3 Qc6 
72.Nxg5 Qh6 73.Rd3 Rc7 74.Rf3 Bb4 75.Rh3 Bf8 76.Rxh6 1-0

Forum Posts

1995 ...

Arasan 2.0 (Windows chess program) available via ftp by Jon Dart, rec.games.chess, July 4, 1995
Arasan 2.1 (Windows chess program) available via ftp by Jon Dart, rec.games.chess.misc, October 23, 1995
Arasan 2.2 (Windows chess program) available via ftp by Jon Dart, rec.games.chess.misc, December 10, 1995
Arasan progress report by Jon Dart, rgcc, May 23, 1996
Arasan 3.0 (Windows chess program) available by Jon Dart, rgcc, July 8, 1996
Arasan goes online by Jon Dart, rgcc, January 6, 1997
Arasan 4.0 is available by Jon Dart, rgcc, July 15, 1997
Arasan 5.0 released by Jon Dart, CCC, January 13, 1999

2000 ...

Arasan 5.4 released by Jon Dart, CCC, May 25, 2000
Arasan vs. IM Paunovic by Jon Dart, CCC, June 16, 2000
Arasan now under Linux by Jon Dart, CCC, September 02, 2000
A few notes from Arasan's games in CCT2 by Jon Dart, CCC, November 05, 2000 » CCT2
CCT4 notes - Arasan by Jon Dart, CCC, January 20, 2002 » CCT4
Arasan 6.0 by Jon Dart, CCC, September 24, 2002
Arasan 6.3 by Jon Dart, CCC, January 26, 2003
Arasan 7.0 by Jon Dart, CCC, August 09, 2003
Arasan 7.4 by Jon Dart, CCC, February 28, 2004
Arasan 7.4 64-bit Speedup by Slater Wold, CCC, March 30, 2004
Arasan 8.0 by Jon Dart, CCC, August 22, 2004
Arasan 8.2 by Jon Dart, CCC, November 26, 2004

2005 ...

Arasan 8.4 by Jon Dart, CCC, February 26, 2005
Arasan in CCT8 by Jon Dart, CCC, February 26, 2006 » CCT8
Arasan @ WCRCC tournament by Jon Dart, CCC, July 23, 2007 » WCRCC 2007
Arasan 10.0 by Jon Dart, CCC, September 02, 2007
Arasan 10.2 by Jon Dart, CCC, February 16, 2008
Arasan 10.4 by Jon Dart, CCC, June 27, 2008
Arasan 11.0 by Jon Dart, CCC, November 28, 2008
Arasan 11.3 by Jon Dart, CCC, March 24, 2009
Arasan 11.4 by Jon Dart, CCC, June 20, 2009
Arasan 11.5 by Jon Dart, CCC, September 05, 2009
Arasan 11.6 by Jon Dart, CCC, November 18, 2009

2010 ...

Arasan 11.7 by Jon Dart, CCC, February 07, 2010
Arasan 12.0 released by Jon Dart, CCC, August 07, 2010
Arasan 12.2 released by Jon Dart, CCC, November 11, 2010

2011

Arasan 12.3 released by Jon Dart, CCC, February 02, 2011
Arasan 13.0 by Jon Dart, CCC, August 18, 2011
Arasan 13.1 by Jon Dart, CCC, August 23, 2011
MORE about Arasan 13.1 by Fernando Villegas, CCC, August 26, 2011
Arasan 13.2 by Jon Dart, CCC, October 02, 2011
Arasan 13.3 by Jon Dart, CCC, November 14, 2011 » ACCA 2011
Arasan 13.4 by Jon Dart, CCC, December 07, 2011

2012

Arasan 14.0 by Jon Dart, CCC, March 04, 2012
Arasan 14.2 by Jon Dart, CCC, June 12, 2012
Arasan 14.3 by Jon Dart, CCC, July 18, 2012
Arasan 15.0 by Jon Dart, CCC, September 20, 2012
Arasan 15.1 by Jon Dart, CCC, November 19, 2012

2013

Arasan 15.2 by Jon Dart, CCC, February 26, 2013
Arasan 15.4 by Jon Dart, CCC, April 24, 2013
Arasan 15.6 by Jon Dart, CCC, May 21, 2013
Arasan on github by Jon Dart, CCC, May 22, 2013 ^[19]
Arasan games from WCRCC by Jon Dart, CCC, July 21, 2013 » WCRCC 2013
Arasan 16.0 by Jon Dart, CCC, July 24, 2013
Arasan 16.1 by Jon Dart, CCC, September 01, 2013
Arasan 16.2 by Jon Dart, CCC, October 25, 2013
Arasan 16.3 by Jon Dart, CCC, December 06, 2013

2014

test position: Rookie-Arasan by Jon Dart, CCC, January 27, 2014 » Rookie, Zugzwang
Arasan 17.0 by Jon Dart, CCC, March 27, 2014
Arasan GUI fixes by Jon Dart, CCC, April 02, 2014
Arasan 17.1 by Jon Dart, CCC, May 07, 2014
Arasan 17.2 by Jon Dart, CCC, May 30, 2014
Arasan 17.3 by Jon Dart, CCC, September 01, 2014
Arasan 17.4 by Jon Dart, CCC, October 08, 2014

2015 ...

Arasan 17.5 by Jon Dart, CCC, January 24, 2015
Experiments with eval tuning by Jon Dart, CCC, March 10, 2015 » Automated Tuning, Texel's Tuning Method
Arasan 18.0 by Jon Dart, CCC, July 30, 2015
Arasan 18.1 by Jon Dart, CCC, November 02, 2015
Arasan 18.2 by Jon Dart, CCC, December 03, 2015

2016

Arasan 18.3 by Jon Dart, CCC, February 02, 2016
Arasan Syzygy support (working with Windows, too) by Jon Dart, CCC, March 10, 2016 » Syzygy Bases
Arasan 19.0 + updated test suite by Jon Dart, CCC, April 29, 2016
Arasan 19.1 by Jon Dart, CCC, August 09, 2016
Arasan 19.2 by Jon Dart, CCC, November 03, 2016

2017

Arasan 20.0 by Jon Dart, CCC, January 31, 2017
building for Android by Jon Dart, CCC, April 19, 2017 » Android
Arasan 20.1 by Jon Dart, CCC, April 28, 2017
Arasan Programmer's Guide by Jon Dart, CCC, June 21, 2017
Arasan 20.2 by Jon Dart, CCC, July 15, 2017
Arasan 20.3 by Jon Dart, CCC, November 05, 2017

2018

Arasan 20.4 by Jon Dart, CCC, January 03, 2018
Arasan 20.4.1 by Jon Dart, CCC, January 05, 2018
Arasan 20.5 by Jon Dart, CCC, April 08, 2018

External Links

Chess Engine

Arasan Chess by Jon Dart
Arasan Programmer's Guide by Jon Dart ^[20]
Arasan Test Suite
Arasan 8.4 released, short interview with Jon Dart by Frank Quisinsky, March 01, 2005, Arena Chess GUI, Archive 5, 72
jdart1/arasan-chess · GitHub ^[21]
Arasan 17.0 64-bit in CCRL 40/40
Arasan 18.0 64-bit in CCRL 40/40

Misc

References

^ Arasan Blog - Aug 26, 2008
^ Arasan chess
^ Arasan Downloads
^ Arasan Tech Blog
^ Tamil script from Wikipedia
^ அரசன் (சதுரங்கம்) - தமிழ் விக்கிப்பீடியா
^ Arasan progress report by Jon Dart, rgcc, May 23, 1996
^ Arasan Blog - Aug 26, 2008
^ Arasan 20.3 by Jon Dart, CCC, November 05, 2017
^ arasan_source20.3.zip/src/attacks.h
^ Arasan 19.2 by Jon Dart, CCC, November 03, 2016
^ Diederik P. Kingma, Jimmy Lei Ba (2015). Adam: A Method for Stochastic Optimization. arXiv:1412.6980v8, ICLR 2015
^ Arasan goes online by Jon Dart, rgcc, January 6, 1997
^ Arasan 15.1 by Jon Dart, CCC, November 19, 2012
^ Seventh Annual ACCA Americas' Computer Chess Championships by Jon Dart, CCC, November 18, 2012
^ Arasan games from WCRCC by Jon Dart, CCC, July 21, 2013
^ Baron 1st, Arasan 2nd by Jon Dart, CCC, June 14, 2015
^ PT48 Round 7
^ jdart1/arasan-chess · GitHub
^ Arasan Programmer's Guide by Jon Dart, CCC, June 21, 2017
^ Arasan on github by Jon Dart, CCC, May 22, 2013

What links here?

Page	Date Edited
1st CSVN OIT	May 18, 2014
Abrok	Nov 28, 2014
ACCA 2006	Jul 14, 2014
ACCA 2007	Jul 14, 2014
ACCA 2008	Jul 14, 2014
ACCA 2009	Jul 14, 2014
ACCA 2010	Jul 14, 2014
ACCA 2011	Jul 14, 2014
ACCA 2012	Jul 14, 2014
ACCA Americas' Computer Chess Championship	Nov 20, 2014
ACCA World Computer Rapid Chess Championship	Jun 27, 2017
Alaric	Mar 4, 2014
Alfil	Sep 3, 2015
Android	Jan 9, 2018
Arasan	Apr 8, 2018
Automated Tuning	Feb 27, 2018
CCT10	May 5, 2013
CCT11	Feb 17, 2015
CCT13	Dec 6, 2013
CCT14	Aug 23, 2012
CCT15	Oct 21, 2014
CCT16	May 13, 2014
CCT2	Sep 7, 2012
CCT3	Feb 14, 2013
CCT4	Apr 22, 2013
CCT5	Feb 22, 2013
CCT6	May 29, 2014
CCT7	Dec 16, 2017
CCT8	Apr 6, 2013
CCT9	Aug 25, 2013
DGT Pi	Oct 22, 2017
Donna	Aug 17, 2017
Eigenmann Endgame Test	Jun 1, 2017
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Fernando Villegas	Aug 15, 2016
Hossa	Jan 7, 2016
IGT 2017	Oct 2, 2017
IGWT 2013	Jun 23, 2014
IGWT 2014	Feb 2, 2016
IGWT III	May 15, 2017
IGWT IV	May 17, 2017
Jon Dart	Dec 17, 2017
King	Feb 26, 2013
Leila	May 8, 2017
Magic Bitboards	Apr 13, 2018
MessChess	Mar 6, 2014
Neural Networks	Mar 12, 2018
Nightmare NL	Dec 12, 2016
Pepito	Nov 27, 2014
PicoChess	Mar 12, 2018
Pseudorandom number generator	May 11, 2017
PT 46	Dec 9, 2014
PT 47	Dec 1, 2014
PT 48	Oct 15, 2015
PuppetMaster	Sep 17, 2015
Recommended Reading	Nov 17, 2017
RomiChess	Jan 2, 2018
Rookie	Jan 7, 2016
RuyTune	Jun 8, 2017
Syzygy Bases	Apr 19, 2018
TCEC Season 10	Jan 3, 2018
TCEC Season 11	Apr 18, 2018
TCEC Season 5	Jun 2, 2014
TCEC Season 6	Dec 2, 2014
TCEC Season 7	Jan 23, 2015
TCEC Season 8	Nov 30, 2015
TCEC Season 9	Nov 6, 2017
Terra	Feb 11, 2015
Tessa Pijl	Oct 28, 2017
Test-Positions	Feb 25, 2018
Texel's Tuning Method	Dec 2, 2017
WCRCC 2007	Nov 21, 2016
WCRCC 2008	Nov 21, 2016
WCRCC 2010	Jul 14, 2014
WCRCC 2012	Jul 14, 2014
WCRCC 2013	Jul 14, 2014
WCRCC 2014	Jul 27, 2014
WCRCC 2015	Jul 19, 2015
WCRCC 2016	Jun 27, 2017
WCRCC 2017	Jun 27, 2017
Witchess	Apr 22, 2015
Zugzwang	Dec 8, 2017

Up one Level

Aristarch

GerdIsenberg — Thu, 08 May 2014 15:14:20 GMT

Home * Engines * Aristarch

		Aristarch, a chess engine by Stefan Zipproth, compliant to the Chess Engine Communication Protocol as well as the Universal Chess Interface, running under Windows. The development of Aristarch already started in 1995 and was first written in Basic, version 2 was mainly a C port, but version 3 was a complete rewrite in C++, using a strictly object oriented design, utilizing bitboards to represent the board, and apparently rotated bitboards to generate sliding piece attacks. Version 4.0 includes several improvements, the most important being a completely new pawn evaluation routine ^[1], it otherwise has a rather speculative king safety evaluation. Beside commonly known search extensions and reductions, Version 4.21 introduced an original pruning method based on 8 simple conditions ^[2]. Aristarch played the CCT4 and CCT5 online tournaments.
Aristarchus of Samos ^[3]

Etymology

The name of the engine has its origin in the ancient Greek astronomer and mathematician Aristarchus of Samos (310 BCE - ca. 230 BCE) ^[4], who presented the first known model of Heliocentrism that placed the Sun at the center of the known universe with the Earth revolving around it. He calculated the sizes of the Sun and Moon, as well as their distances from the Earth in terms of Earth's radius.

Forum Posts

Exiciting Aristarch by Sune Larsson, CCC, August 05, 2002
Re: To Stefan Zipproth (Aristarch) by Stefan Zipproth, CCC, August 07, 2002
Amateur vs Prof: Aristarch 4.4 vs Nimzo 7.32 (2) by Kurt Utzinger, CCC, August 10, 2002
Re: who is Aristarch ? by John Merlino, CCC, August 12, 2002
Amateurs vs Professionals (Aristarch 4.4 vs Nimzo 7.32) 7,0-14,0 by Kurt Utzinger, CCC, August 16, 2002
List 512 UCI und Aristarch 4.37 ready for Download by Andreas Aicher, CCC, January 26, 2004
Nice win from Aristarch 4.50 by Graham Banks, CCC, April 21, 2008
A New Version Of Aristarch by David Schumaker, CCC, December 02, 2010

External Links

Chess Engine

Chess engines... Aristarch, List
About Aristarch
Inside Aristarch
Aristarch of Samos from Chess engines...

Misc

References

^ About Aristarch
^ Inside Aristarch
^ Aristarchos of Samos, monument at Aristotle University of Thessaloniki, Photo by Dr. Manuel, Aristarchos von Samos, Wikipedia.de (German)
^ About Aristarch

What links here?

Page	Date Edited
Aristarch	May 8, 2014
CCT4	Apr 22, 2013
CCT5	Feb 22, 2013
Eigenmann Endgame Test	Jun 1, 2017
Engines	Mar 10, 2018
List (Program)	Jan 7, 2016
Mathematician	Apr 9, 2018
Stefan Zipproth	Jul 26, 2016

Up one Level

Armageddon

GerdIsenberg — Fri, 24 Jan 2014 20:05:18 GMT

Home * Engines * Armageddon

		Armageddon, a Polish chess program, a WinBoard compliant engine, optionally with an own GUI, written by Grzegorz Sidorowicz. Its first release comes from December 31, 1999, and the name is a pun based on prediction that the world would end in 2000 ^[1] . Armageddon regularly played the Polish Computer Chess Championship and became runner up at the PCCC 2002 and PCCC 2003. It further participated at the CCT3, CCT4 and CCT5 on-line tournaments.
The Last Judgment ^[2]

Selected Games

PCCC 2002, round 6, Belzebub - Armageddon ^[3]

[Event "PCCC 2002"]
[Site "Lodz"]
[Date "2002.09.14"]
[Round "6"]
[White "Belzebub"]
[Black "Armageddon"]
[Result "0-1"]
 
1.Nf3 d5 2.e3 Nf6 3.d4 g6 4.Nc3 e6 5.Bd3 c5 6.O-O c4 7.Be2 Bb4 8.a3 Bxc3
9.bxc3 Ne4 10.Bb2 Qa5 11.Qe1 O-O 12.Ne5 f6 13.Ng4 e5 14.dxe5 Bxg4 15.Bxg4
fxe5 16.Be6+ Kg7 17.Rb1 Ng5 18.Bg4 Nc6 19.f3 h5 20.Bd7 Nb8 21.Bh3 Nxh3+
22.gxh3 Nc6 23.e4 dxe4 24.fxe4 Rxf1+ 25.Kxf1 Qa4 26.Qd2 Rd8 27.Qe2 Qb5
28.Kg1 Rf8 29.Kh1 b6 30.Qd2 Qc5 31.Qd7+ Rf7 32.Qd5 Qe3 33.Qxc4 Qf3+ 34.Kg1
Qf2+ 35.Kh1 Qxc2 36.Re1 Rf2 37.Qf1 Rxf1+ 38.Rxf1 Qxb2 39.h4 Qxc3 40.Kg2
Qxa3 41.Rf3 Qb4 42.h3 Qxe4 43.Kg3 Nd4 44.Rf2 Qh1 45.Rg2 Qe1+ 46.Rf2 Qg1+
47.Rg2 Nf5+ 48.Kf3 Qe3# 0-1

Namesake

Armageddon based on Fire 1.31 by Djordje Kasabasic ^[4]

Forum Posts

Armageddon Chess 1.0 by Martin Grabriel, CCC, January 04, 2000
New Armageddon Chess II (2.131) by Grzegorz Sidorowicz, CCC, May 24, 2002
Armageddon by Grzegorz Sidorowicz, CCC, September 02, 2003

External Links

Chess Engine

Armageddon

Time Problems

References

^ Year 2000 problem from Wikipedia
^ The Last Judgment [detail] by Hieronymus Bosch, after 1482
^ I Mistrzostwa Polski Programów Szachowych Partie (PGN)
^ Home - Armageddon Chess

What links here?

Page	Date Edited
Armageddon	Jan 24, 2014
CCT3	Feb 14, 2013
CCT4	Apr 22, 2013
CCT5	Feb 22, 2013
Engines	Mar 10, 2018
Grzegorz Sidorowicz	Mar 13, 2013
IOPCCC 2007	Nov 19, 2016
Matant	Aug 14, 2013
PCCC 2002	Mar 14, 2013
PCCC 2003	Mar 13, 2013
PCCC 2004	Jun 16, 2013
PCCC 2006	Mar 12, 2013
PCCC 2009	Mar 11, 2013
PCCC 2010	Aug 9, 2016
PCCC 2011	Mar 12, 2013
PCCC 2012	Mar 11, 2013
Porucznik	Apr 15, 2014

Up one Level

Arminius

GerdIsenberg — Sat, 05 Aug 2017 19:36:14 GMT

Home * Engines * Arminius

		Arminius, a chess engine by Volker Annuss, which is a complete restructured successor of Hermann ^[1] . Both engines, Hermann and Arminius use a neural network to calculate a probability how likely it is in iterative deepening that the best move will change when searching one ply deeper. They both use properties of the position and results from previous iterations that are correlated with a change in the best move in the next iteration. Arminius also considers relative node counts ^[2]. Arminius' tournament debut was the DOCCC 2011. Arminius 2017, the version that won the third place at PT 51, is using its own format of 6-men WDL endgame bitbases ^[3]. In August 2017, Arminius started to practice Black Magic ^[4]
Arminius Source ^[5]

Forum Posts

Re: Programmers: what's the story behind the name of your engine by Volker Annuss, CCC, June 21, 2011 » Hermann
Re: "panic time" and "easy moves" by Volker Annuss, CCC, February 17, 2013 » Time Management, Neural Networks
The effect of dual channel RAM by Volker Annuss, CCC, March 01, 2015 » Memory
Arminius 2015-08-06 by Volker Annuss, CCC, August 06, 2015
Another way of evaluating material imbalances by Volker Annuss, CCC, January 01, 2017 » Material
Arminius 2017-01-01 released by Volker Annuss, CCC, January 01, 2017
Black magic bitboards by Volker Annuss, CCC, August 03, 2017
Re: Black magic bitboards by Volker Annuss, CCC, August 04, 2017

External Links

Chess Engine

Arminius in CCRL 40/40

Misc

Arminius from Wikipedia
Battle of the Teutoburg Forest from Wikipedia
Heinrich von Kleist (1777–1811), Die Hermannsschlacht (1808)
Category:Arminius - Wikimedia Commons
Arminia from Wikipedia.de (German)
Arminia Bielefeld from Wikipedia
Slayer - Black Magic, Wacken 2014, YouTube Video

References

^ Pandix wins Dutch Open, CSVN site, October 22, 2011
^ Re: "panic time" and "easy moves" by Volker Annuss, CCC, February 17, 2013
^ editor's personal communication with Volker Annuss at PT 51, April 30, 2017
^ Re: Black magic bitboards by Volker Annuss, CCC, August 04, 2017
^ Arminius spring near the Lippe spring and Arminiuspark, Bad Lippspringe, Image by Gmoeller, 2005, CC BY 1.0, Römer-Lippe-Route – Reiseführer auf Wikivoyage, Wikimedia Commons

What links here?

Page	Date Edited
Arminius	Aug 5, 2017
DOCCC 2011	Dec 1, 2013
Engine releases	Apr 23, 2018
Engines	Mar 10, 2018
Hermann	Dec 7, 2017
ICT 2013	Dec 1, 2013
Magic Bitboards	Apr 13, 2018
Material	Mar 31, 2018
Memory	Dec 8, 2017
Neural Networks	Mar 12, 2018
PT 45	May 19, 2014
PT 48	Oct 15, 2015
PT 49	Oct 22, 2015
PT 50	May 3, 2017
PT 51	Oct 5, 2017
PT 52	Nov 14, 2017
TCEC Season 5	Jun 2, 2014
TCEC Season 6	Dec 2, 2014
TCEC Season 7	Jan 23, 2015
Volker Annuss	Aug 3, 2017

Up one Level

Wikispaces : chessprogramming - items matching description

Abbess

Table of Contents

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?

Abrok

Table of Contents

Forum Posts

External Links

References

What links here?

AdaChess

Table of Contents

Forum Posts

External Links

References

What links here?

Adam

Table of Contents

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?

AICE

Table of Contents

Etymology

Features

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?

Alaric

Table of Contents

Etymology

Tournament Play

Selected Games

CCT9

WCRCC 2008

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?

Alarm

Table of Contents

Features

Board Representation

Search

Evaluation

Misc

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?

Aldebaran

Table of Contents

Selected Games

See also

Forum Posts

External Links

Chess Engine

Misc

References

What links here?