kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-05-01 17:19:36 +00:00
Code Issues Releases Wiki Activity

Revert "Implement bestValue in root_search."

Browse source 
This reverts commit 9a39f93f35254787b7b57980019dde276a89c48c.

Revert bestValue in root_search

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Joona Kiiski 2009-04-12 19:49:09 +03:00 • committed by Marco Costalba
parent 6f28bcd483
commit 6c4e36aab6
1 changed files with 7 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/search.cpp
View file

@ -891,7 +891,7 @@ namespace {
Value root_search(Position &pos, SearchStack ss[], RootMoveList &rml, Value alpha, Value beta) {
Value bestValue = -VALUE_INFINITE;
//FIXME: Implement bestValue
Value oldAlpha = alpha;
Value value;
Bitboard dcCandidates = pos.discovered_check_candidates(pos.side_to_move());
@ -899,7 +899,7 @@ namespace {
// Loop through all the moves in the root move list
for (int i = 0; i < rml.move_count() && !AbortSearch; i++)
{
if (alpha >= beta) { //Aspiration window failed high, ignore rest of the moves!
if (alpha >= beta) {
rml.set_move_score(i, -VALUE_INFINITE);
//Leave node-counters and beta-counters as they are.
continue;
@ -982,7 +982,7 @@ namespace {
assert(value >= -VALUE_INFINITE && value <= VALUE_INFINITE);
if (value <= bestValue && i >= MultiPV)
if (value <= alpha && i >= MultiPV)
rml.set_move_score(i, -VALUE_INFINITE);
else
{
@ -1018,12 +1018,8 @@ namespace {
LogFile << pretty_pv(pos, current_search_time(), Iteration, nodes_searched(), value, ss[0].pv)
<< std::endl;
if (value > bestValue)
{
bestValue = value;
if (value > alpha)
alpha = value;
}
if (value > alpha)
alpha = value;
// Reset the global variable Problem to false if the value isn't too
// far below the final value from the last iteration.
@ -1050,17 +1046,16 @@ namespace {
std::cout << std::endl;
}
alpha = rml.get_move_score(Min(i, MultiPV-1));
bestValue = alpha; //In MultiPV-mode bestValue and alpha are always same thing.
}
}
if (bestValue <= oldAlpha)
if (alpha <= oldAlpha)
FailLow = true;
else
FailLow = false;
}
return bestValue;
return alpha;
}