Stockfish 1.5.1

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 17a1aeab984884b261c08bd858556bcdb8884614..3b5cae4541eecec487b02bb3cb72c7233492e453 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -199,7 +199,7 @@ namespace {
   Depth ThreatDepth; // heavy SMP read access
 
   // Last seconds noise filtering (LSN)
-  const bool UseLSNFiltering = true;
+  const bool UseLSNFiltering = false;
   const int LSNTime = 4000; // In milliseconds
   const Value LSNValue = value_from_centipawns(200);
   bool loseOnTime = false;
@@ -446,7 +446,8 @@ bool think(const Position& pos, bool infinite, bool ponder, int side_to_move,
       if (movesToGo == 1)
       {
           MaxSearchTime = myTime / 2;
-          AbsoluteMaxSearchTime = Min(myTime / 2, myTime - 500);
+          AbsoluteMaxSearchTime = 
+             (myTime > 3000)? (myTime - 500) : ((myTime * 3) / 4);
       } else {
           MaxSearchTime = myTime / Min(movesToGo, 20);
           AbsoluteMaxSearchTime = Min((4 * myTime) / movesToGo, myTime / 3);
@@ -470,6 +471,10 @@ bool think(const Position& pos, bool infinite, bool ponder, int side_to_move,
       NodesBetweenPolls = Min(MaxNodes, 30000);
       InfiniteSearch = true; // HACK
   }
+  else if (myTime && myTime < 1000)
+      NodesBetweenPolls = 1000;
+  else if (myTime && myTime < 5000)
+      NodesBetweenPolls = 5000;
   else
       NodesBetweenPolls = 30000;
 
@@ -971,7 +976,10 @@ namespace {
                 std::cout << std::endl;
 
                 if (UseLogFile)
-                    LogFile << pretty_pv(pos, current_search_time(), Iteration, nodes_searched(), value, ss[0].pv)
+                    LogFile << pretty_pv(pos, current_search_time(), Iteration, nodes_searched(), value, 
+                                         ((value >= beta)? VALUE_TYPE_LOWER
+                                          : ((value <= alpha)? VALUE_TYPE_UPPER : VALUE_TYPE_EXACT)),
+                                         ss[0].pv)
                             << std::endl;
 
                 if (value > alpha)