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An **Evaluation Hash Table** may be used in a similar fashion as the transposition table, that is using Zobrist- or BCH-hashing, to cache various computational expensive positional evaluation scores and flags. Despite the fact that the transposition table entries may contain evaluation scores as well, a tighter, dedicated evaluation hash table with its own replacement policy may gain a considerable amount of additional hits.

=See also=
 * BCH Hashing
 * Hash Table
 * Material Hash Table
 * Pawn Hash Table
 * Transposition Table
 * Zobrist Hashing

=Forum Posts=
 * [|Hash tables and data-cache, some programmer stuff...] by Ed Schröder, CCC, January 17, 1998
 * [|Evaluation cache] by Klaus Friedel, Winboard Forum, April 03, 2006 » Snitch
 * [|Stockfish 1.8 - eval cache] by Ralph Stoesser, CCC, July 18, 2010 » Stockfish
 * [|crafty eval cache] by Alvaro Cardoso, CCC, January 01, 2016 » Crafty
 * [|hash eval, hash pawn or twice ?] by Daniel Anulliero, March 19, 2016 » Pawn Hash Table

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