mcostalba/Stockfish — pull request #231 by lucasart (2014-06-01 00:36:59+00:00)
Title: Symmetric evaluation

* symmetrize king safety.
* symmetrize ad hoc eval terms: hanging + R and Q contact check.
* move Tempo outside eval and into the search, in order to have a fully symmetric eval.
* deduce eval from parent node after null search, to avoid unnecessary evaluate() calls.
bench 7649396.