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'''P.ConNerS''',<br/>
a parallel chess program by [[Ulf Lorenz]]. P.ConNerS used the unique approach of [[Conspiracy Number Search#PCCNS|Parallel Controlled Conspiracy Number Search]], developed by Ulf Lorenz and [[Valentin Rottmann]] <ref>[[Ulf Lorenz]], [[Valentin Rottmann]] ('''1996'''). ''Parallel Controlled Conspiracy-Number Search.'' [[Advances in Computer Chess 8]]</ref> within the research group of [[Burkhard Monien]] from the [[Paderborn University]].
[[Heiner Matthias]] was responsible for the [[Opening Book|book moves]].
==P.ConNerS==
from the P.ConNerS site, after winning the 10th Grandmaster Tournament in [https://en.wikipedia.org/wiki/Lippstadt Lippstadt], July 2000 <ref>[httphttps://wwwcswww.wiwi.uni-paderbornsiegen.de/cs/ag-monien/PERSONAL/FLULO/Lehretechnologiemanagement/ParProghp/CUMPIlorenz/pconners.html ?lang=en The chess program P.ConNerS site] (as of November 2018, no longer available</ref>
P.ConNerS stands for 'Parallel Controlled Conspiracy Number Search'. Thus, the tournament victory is highly interesting from a research perspective, as well: P.ConNerS uses a non-conventional, non-alphabeta search algorithm. The search algorithm tries not only to maximize the search depth, but also tries to guarantee that even when one leaf-value changes, the result stays the same. A conspiracy 2 search may be interpreted as a special, global arrangement of a lot of so called [[Singular Extensions|singular extensions]]. As a result, it domain-independently searches highly selective and irregular game trees. The program is written in [[C]].
=Publications=
* [[Ulf Lorenz]] ('''2000'''). ''P.ConNerS wins the 10th Grandmaster Tournament in Lippstadt (Germany)''. [[ICGA Journal#23_3|ICGA Journal, Vol. 23, No. 3]]* [[Ulf Lorenz]] ('''2002'''). ''[https://link.springer.com/chapter/10.1007/3-540-45706-2_57 Parallel Controlled Conspiracy Number Search]''. [https://dblp1.uni-trier.de/db/conf/europar/europar2002.html Euro-Par 2002], [https://en.wikipedia.org/wiki/Lecture_Notes_in_Computer_Science LNCS] 2400, [https://en.wikipedia.org/wiki/Springer_Science%2BBusiness_Media Springer]
=Forum Posts=
==1998 ...==
* [https://www.stmintz.com/ccc/index.php?id=20233 Is there really any good alternative to alfa-beta search?] by [[Jouni Uski]], [[CCC]], June 09, 1998
* [https://www.stmintz.com/ccc/index.php?id=55675 WCCC 99 LambChop - P. ConNerS "1 - 0" Round 1] by Jose Hernandez, [[CCC]], June 14, 1999 » [[LambChop]], [[WCCC 1999]]
* [https://www.stmintz.com/ccc/index.php?id=58557 What went wrong with P.Conners and Zugzwang in WCCC?] by [[Jouni Uski]], [[CCC]], June 29, 1999 » [[WCCC 1999]]
==2000 ...==
* [https://www.stmintz.com/ccc/index.php?id=118581 P.Conners is leading with 4 out of 5] by [[Uri Blass]], [[CCC]], July 10, 2000
* [https://www.stmintz.com/ccc/index.php?id=121556 About PConners] by [[Jouni Uski]], [[CCC]], July 25, 2000
* [https://www.stmintz.com/ccc/index.php?id=155540 Test Position, Rook and Pawn Ending, Yace- P.ConNerS (0-1)] by [[Ferdinand Mosca]], [[CCC]], February 22, 2001
=External Links=
* [https://www.game-ai-forum.org/icga-tournaments/program.php?id=95 P.ConNerS' ICGA Tournaments]
* [http://www.chessgames.com/perl/chessplayer?pid=112697 The chess games of ConNers] from [http://www.chessgames.com/index.html chessgames.com]
* [https://www.wiwi.uni-siegen.de/technologiemanagement/hp/lorenz/pconners.html?lang=en The chess program P.ConNerS]
=References=
'''[[Engines|Up one Level]]'''
[[Category:Acronym]]
[[Category:CNS]]
