Ed+Schroder

a Dutch computer chess programmer and founder of **Schröder BV**, a chess software developing company. Ed is author of various chess programs for PCs as well for dedicated chess computers. His most famous chess programs were the commercial programs Rebel, and based on Rebel the WMCCC 1991 Micro Champion Gideon , the World Computer Chess Champion from the WCCC 1992, ChessMachine , and the free program Pro Deo. Ed contributed a lot to computer chess, since he made almost all his knowledge about chess programming public, when he retired from competition in 2003. In 2002 Lokasoft took over the activities of **Schröder BV**. || toc =Photos= =2011 Rybka Controversy= In 2011, Ed Schröder first signed the open letter directed to the ICGA, to support the claim Rybka 1.0 beta and subsequent versions were allegedly derivatives from Fabien Letouzey’s program Fruit 2.1, but soon after the ICGA decision, reconsidered, apologized to Vasik Rajlich and criticized the investigation process and the represented evidence. In November 2011, Ed Schröder announced his new web-sites that give an alternative view of the historic ICGA - RYBKA event that led to the ban of Rybka.
 * Home * People * Ed Schröder**
 * [[image:ed_schr.gif width="160" link="http://www.rebel.nl/whoiswho.htm"]] ||~  || **Ed Schröder**,
 * Ed Schröder ||~  ||^   ||
 * [[image:Schroder.jpg width="508" height="647"]] ||
 * Ed Schröder just won the Shannon Trophy, WCCC Madrid 1992 ||

=Programs and Computers=
 * ChessMachine
 * Gideon
 * Mephisto MM IV
 * Mephisto MM V
 * Mephisto Polgar
 * Mephisto Rebell
 * Mephisto RISC
 * Pro Deo
 * Rebel

=Selected Publications=
 * Jeroen Noomen, Ed Schröder (**1998**). //Anand versus Rebel 10 exp.// ICCA Journal, Vol. 21, No. 3
 * Ed Schröder (**2012**). //Rybka reloaded//. [|pdf]
 * Ed Schröder (**2015**). //The myth Rajlich copied Fruit//. [|pdf]

=Forum Posts=

1993 ...

 * [|Interview with world champ chess programmer (long)] by Kees de Graaf, rgc, February 05, 1993

1995 ...

 * [|REBEL 7 announcement] by Ed Schröder, rgc, July 27, 1995
 * [|Open letter to ChessBase] by Ed Schröder, rgcc, January 09, 1997
 * [|CCC-I test set] by Ed Schröder, CCC, October 04, 1997 » Test-Positions
 * [|CCC-II test set] by Ed Schröder, CCC, October 04, 1997
 * [|CCC-III (positional test)] by Ed Schröder, CCC, October 06, 1997
 * [|Hash tables and data-cache, some programmer stuff...] by Ed Schröder, CCC, January 17, 1998 » Hash Table, Transposition Table
 * [|My views on the Match] by Ed Schröder, CCC, July 27, 1998
 * [|Ed's real life] by Jean-Christophe Weill, rgcc, August 15, 1998
 * [|How to create a set of random integers for hashing?] by Ed Schröder, CCC, October 18, 1998 » Zobrist Hashing
 * [|AUTO232 and memory protection] by Ed Schröder, CCC, February 03, 1999 » Auto232
 * [|PB-ON vs PB-OFF (results experiment-1)] by Ed Schröder, CCC, October 10, 1999 » Pondering
 * [|PB-ON vs PB-OFF (final results)] by Ed Schröder, CCC, October 15, 1999

2000 ...

 * [|Faster, deeper and more of such...] by Ed Schröder, CCC, September 14, 2000 » Diminishing Returns, Search Statistics
 * [|Marcus Kastner versus Millennium (again)] by Ed Schröder, CCC, December 06, 2000 » Marcus Kästner, MILLENNIUM 2000 GmbH
 * [|Maastricht] by Ed Schröder, CCC, August 03, 2001 » WMCCC 2001
 * [|The law of diminishing returns] by Ed Schröder, CCC, July 12, 2002 » Diminishing Returns
 * [|Eric Schiller about the Cadaques Qualifier] by Ed Schröder, CCC, October 11, 2002 » Eric Schiller, Kramnik versus Deep Fritz 2002
 * [|In memorandum - Jan Louwman] by Ed Schröder, CCC, December 04, 2002 » Jan Louwman
 * [|Programmer challenge] by Ed Schröder, CCC, February 20, 2003 » x86
 * [|Is there a way?] by Ed Schröder, CCC, December 13, 2004 » Engine Testing

2005 ...

 * [|Where are all the congrats to Anthony Cozzie ???] by Ed Schröder, CCC, August 21, 2005 » WCCC 2005
 * [|Expert Assembler Question] by Ed Schröder, CCC, August 26, 2005 » x86
 * [|To campaign or not] by Ed Schroder, CCC, August 28, 2008
 * [|Re: SOMA] by Ed Schröder from CCC, August 26, 2009

2010 ...

 * [|Re: "Automated Discovery of Search Extensions"] by Ed Schröder, OpenChess Forum, June 26, 2010
 * [|Progess (often) is ugly, a summary try] by Rebel, OpenChess Forum, July 03, 2011
 * [|In retrospect] by Rebel, Rybka Forum, July 14, 2011
 * [|Apology to Vas] by Rebel, Rybka Forum, August 17, 2011
 * [|Tuning again] by Ed Schroder, CCC, November 01, 2011 » Stockfish's Tuning Method
 * [|ProDeo 1.7 official now] by Ed Schröder, CCC, November 02, 2011
 * [|Wiki-leaks] by Ed Schröder, Rybka Forum, January, 18, 2012
 * [|Hash table division] by Ed Schröder, CCC, April 05, 2012 » Transposition Table

2015 ...

 * [|counting nodes vs counting evaluations] by Ed Schroder, CCC, July 19, 2015 » Node
 * [|SMP (new style)] by Ed Schroder, CCC, July 20, 2015 » Parallel Search
 * [|(E)valuation (F)or (S)tarters] by Ed Schroder, CCC, July 26, 2015
 * [|Some musings about search] by Ed Schroder, CCC, August 14, 2015 » Automated Tuning, Match Statistics, Search
 * [|Ideas] by Ed Schroder, CCC, September 08, 2016
 * [|adaptive lazy eval] by Ed Schroder, CCC, August 31, 2017 » Lazy Evaluation
 * [|Blog] by Ed Schroder, CCC, November 16, 2017

=External Links= > [|Rebel Pure Nostalgica] > [|ideas] » Pro Deo > [|Programmer corner] > [|Historic video's] hosted by Ed Schröder, WMCCC 1985, WCCC 1986, Aegon 1997, WCCC 1999, Eric Hallsworth > [|Rybka evidence] by Ed Schröder, November 09, 2011 > [|Dedicated chess computers - Home of the Dutch Rebel]
 * [|Welcome to the Home of the Dutch Rebel]
 * [|Programmer Corner] (old)
 * [|Ed Schröder's ICGA Tournaments]
 * [|Schröder, Ed] (German) from [|Schachcomputer.info - Wiki]

=References= =What links here?= include page="Ed Schroder" component="backlinks" limit="400"
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