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Author SHA1 Message Date
Joseph Ellisandnodchip d160436921 Update description for PruneAtShallowDepthOnPvNode 2020-09-16 10:01:09 +09:00
Joseph Ellisandnodchip 430467db1c Create a UCI Training option 
Creates a UCI Training option and uses it to disable LMP on PV nodes.
 2020-08-13 08:32:10 +09:00
Joseph Ellisandnodchip 44a54b63f1 Don't allow LMP on PvNodes 
I mentioned this a while back in discord, but nothing seems to have ever come from it.  Anyway, to the best of my knowledge most current training data gen is being done at relatively low fixed depths.  With this in mind, the change to not allow LMP in PvNodes should result in a fairly significant increase in strength and reliability of the PV.
 2020-08-13 08:32:10 +09:00
Joseph HellisandMarco Costalba 619d66b7ab Remove supporting pawns 
Tested in no-regression mode

Passed both STC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 44957 W: 7984 L: 7903 D: 29070

and LTC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 12396 W: 1916 L: 1783 D: 8697

Bench: 7907885
 2014-04-17 08:45:31 +02:00
jhellis3 7323231786 Tweak Mobility Area 
Only consider pawns and the king as restricting.
 2013-05-01 02:37:50 -05:00
jhellis3andMarco Costalba 3ce43c20de Stop search if only 1 legal move 
There is no point searching a move that is forced.
It wastes time while allowing computer opponents to
fill hash with 100% accuracy.

[edit: Condition moved together with "easy move" ones]

Bench identical: 4922272
 2013-03-04 08:30:55 +01:00