Add a second margin to razoring

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 88d3e8a0b02817d2fc7f07b0318ee6af63c6894c..10aa196add95d87944db24863eb1cbd5c764010e 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -69,16 +69,16 @@ namespace {
 
   public:
     RootMoveList(Position &pos, Move searchMoves[]);
-    Move get_move(int moveNum) const;
-    Value get_move_score(int moveNum) const;
-    void set_move_score(int moveNum, Value score);
-    void set_move_nodes(int moveNum, int64_t nodes);
+    inline Move get_move(int moveNum) const;
+    inline Value get_move_score(int moveNum) const;
+    inline void set_move_score(int moveNum, Value score);
+    inline void set_move_nodes(int moveNum, int64_t nodes);
     void set_move_pv(int moveNum, const Move pv[]);
-    Move get_move_pv(int moveNum, int i) const;
-    int64_t get_move_cumulative_nodes(int moveNum) const;
-    int move_count() const;
+    inline Move get_move_pv(int moveNum, int i) const;
+    inline int64_t get_move_cumulative_nodes(int moveNum) const;
+    inline int move_count() const;
     Move scan_for_easy_move() const;
-    void sort();
+    inline void sort();
     void sort_multipv(int n);
 
   private:
@@ -416,7 +416,7 @@ void think(const Position &pos, bool infinite, bool ponder, int side_to_move,
   int myTime = time[side_to_move];
   int myIncrement = increment[side_to_move];
   int oppTime = time[1 - side_to_move];
-  
+
   TimeAdvantage = myTime - oppTime;
 
   if(!movesToGo) { // Sudden death time control
@@ -1122,9 +1122,8 @@ namespace {
         }
     }
     // Null move search not allowed, try razoring
-    else if (   depth < RazorDepth
-             && approximateEval < beta - RazorMargin
-             && evaluate(pos, ei, threadID) < beta - RazorMargin)
+    else if (  (approximateEval < beta - RazorMargin && depth < RazorDepth)
+             ||(approximateEval < beta - PawnValueMidgame && depth <= OnePly))
     {
         Value v = qsearch(pos, ss, beta-1, beta, Depth(0), ply, threadID);
         if (v < beta)
@@ -2174,6 +2173,12 @@ namespace {
     {
         lastInfoTime = t;
         lock_grab(&IOLock);
+        if (dbg_show_mean)
+            dbg_print_mean();
+
+        if (dbg_show_hit_rate)
+            dbg_print_hit_rate();
+
         std::cout << "info nodes " << nodes_searched() << " nps " << nps()
                   << " time " << t << " hashfull " << TT.full() << std::endl;
         lock_release(&IOLock);
@@ -2186,7 +2191,7 @@ namespace {
 
     bool overTime =     t > AbsoluteMaxSearchTime
                      || (RootMoveNumber == 1 && t > MaxSearchTime + ExtraSearchTime)
-                     || (  !FailHigh && !fail_high_ply_1() && !Problem 
+                     || (  !FailHigh && !fail_high_ply_1() && !Problem
                          && t > 6*(MaxSearchTime + ExtraSearchTime));
 
     if (   (Iteration >= 2 && (!InfiniteSearch && overTime))