Changes

* [[NegaScout]]

* [[Null Window]]

* [[PVS and Aspiration]]

* [[Scout]]

==2005 ...==

* [http://www.open-aurec.com/wbforum/viewtopic.php?f=4&t=6558 Slight enhancement to PVS] by [[Pradu Kannan]], [[Computer Chess Forums|Winboard Programming Forum]], June 10, 2007

* [http://www.talkchess.com/forum/viewtopic.php?t=24883 when to try zero window search], [[CCC]], November 14, 2008

* [http://www.talkchess.com/forum/viewtopic.php?t=26974 PVS] by [[Edmund Moshammer]], [[CCC]], March 12, 2009

* [http://www.open-chess.org/viewtopic.php?f=5&t=2208 principle variation search] by nak3c, [[Computer Chess Forums|OpenChess Forum]], January 09, 2013

* [http://www.open-chess.org/viewtopic.php?f=5&t=2218 Implementing pvs] by [[Christian Daley|CDaley11]], [[Computer Chess Forums|OpenChess Forum]], January 13, 2013

* [http://www.talkchess.com/forum/viewtopic.php?t=53626 Improvement from PVS] by [[Matthew Lai]], [[CCC]], September 09, 2014

* [http://www.talkchess.com/forum/viewtopic.php?t=53972 Your experience with PVS + Aspiration window] by [[Fabio Gobbato]], [[CCC]], October 07, 2014 » [[Aspiration Windows]], [[PVS and Aspiration]]

* [http://www.talkchess.com/forum/viewtopic.php?t=65490 PVS & Embla] by [[Folkert van Heusden]], [[CCC]], October 19, 2017 » [[Embla]]

* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=69252 out of time in PVS] by Louis Mackenzie-Smith, [[CCC]], December 13, 2018

=External Links=

* [http://web.archive.org/web/20070809015901/www.seanet.com/~brucemo/topics/pvs.htm Principal Variation Search] from [[Bruce Moreland|Bruce Moreland's]] [http://web.archive.org/web/20070811182741/www.seanet.com/%7Ebrucemo/topics/topics.htm Programming Topics]

* [https://en.wikipedia.org/wiki/Negascout NegaScout or Principal Variation Search from Wikipedia]