Difference between revisions of "Fail-Hard"
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* [http://www.talkchess.com/forum/viewtopic.php?t=48274 First post (and FailHigh question!)] by [[Natale Galioto]], [[CCC]], June 14, 2013 » [[Fail-High]], [[Fail-Soft]] | * [http://www.talkchess.com/forum/viewtopic.php?t=48274 First post (and FailHigh question!)] by [[Natale Galioto]], [[CCC]], June 14, 2013 » [[Fail-High]], [[Fail-Soft]] | ||
* [http://www.talkchess.com/forum/viewtopic.php?t=51284 Fail soft vs fail hard] by [[Sergei Markoff|Sergei S. Markoff]], [[CCC]], February 15, 2014 » [[Fail-Soft]], [[Fail-Low]], [[Internal Iterative Deepening]] | * [http://www.talkchess.com/forum/viewtopic.php?t=51284 Fail soft vs fail hard] by [[Sergei Markoff|Sergei S. Markoff]], [[CCC]], February 15, 2014 » [[Fail-Soft]], [[Fail-Low]], [[Internal Iterative Deepening]] | ||
+ | ==2020 ...== | ||
+ | * [https://www.talkchess.com/forum3/viewtopic.php?f=7&t=79223 Fail hard/soft] by Philippe Chevalier, [[CCC]], January 28, 2022 | ||
+ | |||
+ | =External Links= | ||
+ | * [https://en.wikipedia.org/wiki/Alpha%E2%80%93beta_pruning#Pseudocode Alpha–beta pruning from Wikipedia] | ||
+ | * [https://www.ics.uci.edu/~eppstein/180a/990202b.html Lecture notes for February 2, 1999 Variants of Alpha-Beta Search] by [[David Eppstein]] | ||
'''[[Alpha-Beta|Up one Level]]''' | '''[[Alpha-Beta|Up one Level]]''' |
Latest revision as of 00:11, 1 February 2022
Home * Search * Alpha-Beta * Fail-Hard
Fail-Hard is a term related to an Alpha-Beta like search, to make Alpha and Beta hard bounds of the returned value of the search. Even terminal nodes which indicate draw or mate scores are supposed to be adjusted on the hard alpha-beta bounds.
Contents
Fail-Hard Condition
Alpha <= Score <= Beta
See also
Forum Posts
2000 ...
- Fail-soft or Fail-hard ? by Teerapong Tovirat, CCC, November 04, 2000 » Fail-Soft
- Fail-hard, fail-soft question by Dan Honeycutt, CCC, May 06, 2004
2005 ...
- fail soft vs fail hard by cyberfish, CCC, November 19, 2008
- Return eval or upper bound? by John Merlino, CCC, October 26, 2009
2010 ...
- First post (and FailHigh question!) by Natale Galioto, CCC, June 14, 2013 » Fail-High, Fail-Soft
- Fail soft vs fail hard by Sergei S. Markoff, CCC, February 15, 2014 » Fail-Soft, Fail-Low, Internal Iterative Deepening
2020 ...
- Fail hard/soft by Philippe Chevalier, CCC, January 28, 2022