Difference between revisions of "Exact Score"
GerdIsenberg (talk | contribs) (Created page with "'''Home * Search * Score * Exact Score''' An '''Exact Score''' is a score returned from an alpha-beta search, if [[Alpha|alpha]...") |
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* [https://www.stmintz.com/ccc/index.php?id=309279 Bounds... when is an exact score an EXACT score?] by [[Ross Boyd]], [[CCC]], August 01, 2003 | * [https://www.stmintz.com/ccc/index.php?id=309279 Bounds... when is an exact score an EXACT score?] by [[Ross Boyd]], [[CCC]], August 01, 2003 | ||
* [http://www.talkchess.com/forum/viewtopic.php?t=42224 A few general questions...] by [[Bill Henry]], [[CCC]], January 29, 2012 » [[Root]], [[Aspiration Windows]] | * [http://www.talkchess.com/forum/viewtopic.php?t=42224 A few general questions...] by [[Bill Henry]], [[CCC]], January 29, 2012 » [[Root]], [[Aspiration Windows]] | ||
| + | * [http://www.open-chess.org/viewtopic.php?f=5&t=2225 Exact node values] by [[Christian Daley|CDaley11]], [[Computer Chess Forums|OpenChess Forum]], January 16, 2013 | ||
'''[[Score|Up one level]]''' | '''[[Score|Up one level]]''' | ||
Latest revision as of 10:27, 11 April 2020
Home * Search * Score * Exact Score
An Exact Score is a score returned from an alpha-beta search, if alpha, the max so far, was improved, while the min-player improved his score as well (score < beta). The current node searched was an expected PV-Node, which was confirmed by the search in finding and collecting a principal variation.
Always or Never
- Pure Minimax always returns exact scores.
- A Null Window search never returns exact scores.
See also
Forum Posts
- Bounds... when is an exact score an EXACT score? by Ross Boyd, CCC, August 01, 2003
- A few general questions... by Bill Henry, CCC, January 29, 2012 » Root, Aspiration Windows
- Exact node values by CDaley11, OpenChess Forum, January 16, 2013
