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Disable insert_pv

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This way we avoid overwriting valuable TT entries which
are needed to calculate exclusion search extension for pv.

Mod - Orig: 483 - 410 (+28 elo!)

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski
2009-12-08 19:06:38 +02:00
committed by Marco Costalba
parent 9a46ac6b2c
commit d0b8bc5fdf
1 changed files with 1 additions and 1 deletions
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2
src/search.cpp
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@@ -743,7 +743,7 @@ namespace {
// Write PV to transposition table, in case the relevant entries have // Write PV to transposition table, in case the relevant entries have
// been overwritten during the search. // been overwritten during the search.
TT.insert_pv(p, ss[0].pv); //TT.insert_pv(p, ss[0].pv);
if (AbortSearch) if (AbortSearch)
break; // Value cannot be trusted. Break out immediately! break; // Value cannot be trusted. Break out immediately!