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Restore old BOUND_EXACT logic in qsearch
authorMarco Costalba <mcostalba@gmail.com>
Sun, 11 Nov 2012 10:49:02 +0000 (11:49 +0100)
committerMarco Costalba <mcostalba@gmail.com>
Sun, 11 Nov 2012 10:52:11 +0000 (11:52 +0100)
In case a PvNode node has a static evaluation above alpha but
no available moves we want to flag the node as BOUND_EXACT,
not as BOUND_UPPER as is currently.

The behaviour was recently introduced with patch d471c49700fbe8281
of 3/10/2012

Spotted by Hongzhi Cheng.

bench: 5558464


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