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'''Harm Geert Muller''' ('''HGM'''),<br/>
a Dutch physicist and since 1976 computer chess programmer. He wrote a blitz program for the [[PDP-11]] and programs for the [[6800]] and [[6502]] 8-bit µ-Processors, released under the name [[Usurpator]], which competed in several [[Dutch Open Computer Chess Championship|Dutch Computer Chess Championships]]. In [[DOCCC 1986|1986]] HGM came up with a [[Usurpator#Matchbox|matchbox computer ]] with a [http://www.baltissen.org/newhtm/65sc816.htm 65SC816] CPU for the purpose of running Usurpator <ref>[[Jaap van Oosterwijk Bruyn]] ('''1986'''). ''Nona retains her Title''. [[ICGA Journal#9_3|ICCA Journal, Vol. 9, No. 3]]</ref>, competing three times until [[DOCCC 1990|1990]] <ref>Harm Geert Muller ('''1990'''). ''A Matchbox Chess Computer''. [[ICGA Journal#13_4|ICCA Journal, Vol. 13, No. 4]]</ref>.
=Comeback=
* [[Harm Geert Muller]] ('''1990'''). ''A Matchbox Chess Computer''. [[ICGA Journal#13_4|ICCA Journal, Vol. 13, No. 4]]
* [[Harm Geert Muller]] ('''2000'''). ''Multiphoton ionization at AMOLF''. [http://nnvaq.tue.nl/atoq/2000/Bijdrage_muller.pdf pdf] from [http://nnvaq.tue.nl/atoq/ Van A tot Q on line]
* P.M. Paul, E.S. Toma, P. Breger, G. Mullot, F. Augé, Ph. Balcou, [[Harm Geert Muller]] and P. Agostini. [https://www.science.org/doi/10.1126/science.1059413 ''Observation of a Train of Attosecond Pulses from High Harmonic Generation'']. [https://www.science.org Science] 292, 1689 ('''2001''').* [http://www.linkedin.com/pub/petrissa-eckle/3b/619/165 Petrissa Eckle], [http://www.linkedin.com/pub/mathias-smolarski/11/b71/241 Mathias Smolarski], [http://www.linkedin.com/pub/philip-schlup/7/45/974 Philip Schlup],Harm Geert Muller, [http://scholar.google.com/citations?user=QKtLfo8AAAAJ&hl=de Jens Biegert], [http://www.science.uottawa.ca/fac/professor_details.html?en/490 André Staudte], [http://atto.photonik.tuwien.ac.at/index.php?option=com_content&view=article&id=67&Itemid=124 Markus Schöffler], [[Harm Geert Muller]], [http://www.uni-frankfurt.de/fb/fb13/ikf/Lehrende/Doerner/ Reinhard Dörner], [http://www.multimedia.ethz.ch/speakers/portraits/keller_ursula Ursula Keller] ('''2008'''). ''[http://www.nature.com/nphys/journal/v4/n7/abs/nphys982.html Attosecond angular streaking]''. [https://en.wikipedia.org/wiki/Nature_Physics Nature Physics], Vol. 4, doi:10.1038/nphys982 <ref>[https://en.wikipedia.org/wiki/Attophysics Attophysics from Wikipedia]</ref> <ref>[http://www.ethlife.ethz.ch/archive_articles/080625_kellerpaper/index Eine Stoppuhr für den Tunneleffekt] by Samuel Schläfli, ETH-Life, [[ETH Zurich]], June 25, 2008 (German)</ref>
* [http://www.linkedin.com/pub/petrissa-eckle/3b/619/165 Petrissa Eckle], [http://www.ulp.ethz.ch/research/Attoclock Adrian Pfeiffer], [http://www.ulp.ethz.ch/research/Attoclock Claudio Cirelli], [http://www.science.uottawa.ca/fac/professor_details.html?en/490 André Staudte], [http://www.uni-frankfurt.de/fb/fb13/ikf/Lehrende/Doerner/ Reinhard Dörner], [[Harm Geert Muller]], [http://scholar.google.com/citations?user=ZX2C8mMAAAAJ&hl=en Markus Buttiker], [http://www.multimedia.ethz.ch/speakers/portraits/keller_ursula Ursula Keller] ('''2008'''). ''[http://www.sciencemag.org/content/322/5907/1525 Attosecond Ionization and Tunneling Delay Time Measurements in Helium]''. [https://en.wikipedia.org/wiki/Science_%28journal%29 Science], Vol. 322, doi:10.1126/science.1163439 <ref>[https://en.wikipedia.org/wiki/Quantum_tunnelling Quantum tunnelling from Wikipedia]</ref> <ref>[http://www.ethlife.ethz.ch/archive_articles/081205_keller_tunneling_sch Der Tunneleffekt unter Beschuss] by Samuel Schläfli, ETH-Life, [[ETH Zurich]], December 05, 2008 (German)</ref>
* [http://www.theorie.physik.uni-muenchen.de/lsruhl/members/group_leaders/armin_scrinzi/index.html Armin Scrinzi], [[Harm Geert Muller]] ('''2009'''). ''[http://link.springer.com/chapter/10.1007/978-0-387-34755-4_13 Attosecond Pulses: Generation, Detection, and Applications]''. in [https://science.uottawa.ca/physics/people/brabec-thomas Thomas Brabec] (ed.) ('''2009'''). ''[http://link.springer.com/book/10.1007/978-0-387-34755-4 Stong Field Laser Physics]''. Springer Series in Optical Sciences, Vol. 134, [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
* [http://www.talkchess.com/forum/viewtopic.php?t=12936 LMR in micro-Max] by [[Harm Geert Muller]], [[CCC]], April 07, 2007 » [[Late Move Reductions]]
* [http://www.talkchess.com/forum/viewtopic.php?t=13433 beyond minimax] by [[Harm Geert Muller]], [[CCC]], April 27, 2007 » [[Minimax]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=15220 Trouble Spotter] by [[Harm Geert Muller]], [[CCC]], July 19, 2007 » [[Tactics]], [[Evaluation]]
* [http://www.talkchess.com/forum/viewtopic.php?t=15809 re-inventing the SMP wheel] by [[Harm Geert Muller]], [[CCC]], August 15, 2007 » [[Parallel Search]]
* [http://www.talkchess.com/forum/viewtopic.php?t=16751 Delayed-loss-bonus discussion goes here] by [[Harm Geert Muller]], [[CCC]], September 28, 2007 » [[Checkmate]], [[Score]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65268 The Peace-Chess Challenge] by [[Harm Geert Muller]], [[CCC]], September 24, 2017 » [[Games#ChessVariants|Chess Variants]]
* [http://www.talkchess.com/forum/viewtopic.php?t=65870 Magic end-game material hash?] by [[Harm Geert Muller]], [[CCC]], November 30, 2017
* [http://www.talkchess.com/forum/viewtopic.php?t=65905 The Gigatron project] by [[Harm Geert Muller]], [[CCC]], December 06, 2017 » [[Hardware#Gigatron|Gigatron]]
'''2018'''
* [http://www.talkchess.com/forum/viewtopic.php?t=66966 'ab-initio' piece values] by [[Harm Geert Muller]], [[CCC]], March 30, 2018 » [[Point Value]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=67534 Chinese Chess] by [[Harm Geert Muller]], [[CCC]], May 22, 2018 » [[Chinese Chess]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=67877 Xiangqi evaluation] by [[Harm Geert Muller]], [[CCC]], July 01, 2018 » [[Chinese Chess|Xiangqi]], [[Evaluation]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69301 Fast SEE (Ed's lookup revisited)] by [[Harm Geert Muller]], [[CCC]], December 17, 2018 » [[Attack and Defend Maps#EDsLookup|Ed's lookup]], [[Static Exchange Evaluation|SEE]]
'''2019'''
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70118 idea: null-move analogy] by [[Harm Geert Muller]], [[CCC]], March 06, 2019 » [[Null Move Pruning]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70165 delaying tactics: prune or extend?] by [[Harm Geert Muller]], [[CCC]], March 10, 2019 » [[Selectivity]], [[Tactics]]
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=73110 Zobrist key independence] by [[Harm Geert Muller]], [[CCC]], February 17, 2020 » [[Zobrist Hashing]]
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=73298 The Inferno Thread, part II] by [[Harm Geert Muller]], [[CCC]], March 07, 2020 » [[Shogi#Tenjiku|Tenjiku Shogi]]
* [https://groups.google.com/d/msg/shogi-l/C4Qfi3pGqdM/RL5EHBCDCAAJ Re: Zero?] by [[Harm Geert Muller]], [[Computer Chess Forums|SHOGI-L]], June 05, 2020
'''2021'''
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=76465 Reinforcement learning project] by [[Harm Geert Muller]], [[CCC]], January 31, 2021 » [[Reinforcement Learning]], [[Texel's Tuning Method]]
* [http://talkchess.com/forum3/viewtopic.php?f=7&t=76773 The mailbox trials] by [[Harm Geert Muller]], [[CCC]], March 04, 2021 » [[Mailbox]] <ref>[https://github.com/maksimKorzh/hgm-mailbox-trials/blob/main/mailbox7b.c hgm-mailbox-trials/mailbox7b.c at main · maksimKorzh/hgm-mailbox-trials · GitHub] hosted by [[Maksim Korzh]]</ref>
'''2023'''
* [http://talkchess.com/forum3/viewtopic.php?f=7&t=82671 Chessprogramming wiki, @Gerd] by [[Harm Geert Muller]], [[CCC]], October 05, 2023
=HGM's pages=
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Programmer|Muller]]
[[Category:Shogi Programmer|Muller]]
[[Category:Xiangqi Programmer|Muller]]
[[Category:Physicist|Muller]]
