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Correctly output lowerbound/upperbound in threaded searches

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fixes the lowerbound/upperbound output by taking the alpha,beta bracket
into account also if a bestThread is selected that is different from the master thread.

Instead of keeping track which bounds where used in the specific search,
in this version we simply store the quality (exact, upperbound,
lowerbound) of the score along with the actual score as information on
rootMove.

closes https://github.com/official-stockfish/Stockfish/pull/4239

No functional change
This commit is contained in:
Guenther Demetz
2022-11-22 11:07:18 +01:00
committed by Joost VandeVondele
parent 1370127fcd
commit f5a31b7e57
3 changed files with 11 additions and 7 deletions
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src/uci.h
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@@ -79,7 +79,7 @@ void loop(int argc, char* argv[]);
std::string value(Value v);
std::string square(Square s);
std::string move(Move m, bool chess960);
std::string pv(const Position& pos, Depth depth, Value alpha, Value beta);
std::string pv(const Position& pos, Depth depth);
std::string wdl(Value v, int ply);
Move to_move(const Position& pos, std::string& str);