Upper+Bound

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 * Home * Search * Score * Upper Bound**

There are two semantics inside an Alpha-Beta like search, related to **Upper Bounds**:
 * Beta is an **Upper Bound** of a score for this node.
 * An **Upper Bound** is returned from an Alpha-Beta like search, if it fails low. All moves were searched, but none improved alpha. The node searched was a confirmed All-Node.

=See also=
 * Alpha-Beta
 * Bound
 * Exact Score
 * Lower Bound
 * Integrated Bounds and Values
 * Score
 * Transposition Table

=Forum Posts=
 * [|Using just Upperbounds and Lowerbounds] by Alvaro Jose Povoa Cardoso, CCC, February 01, 2001
 * [|bound type in PVS ?] by Mahmoud Uthman, CCC, January 23, 2017 » Bound, Exact Score, Principal Variation Search

=External Links=
 * [|Upper and lower bounds from Wikipedia]
 * [|Branch-and-bound from Wikipedia]

=What links here?= include page="upper bound" component="backlinks" limit="50"
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