X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsearch.cpp;h=da20f15e3352964a596137a7f581e2e885b9e6ed;hb=4502917665d50394ead903d0b82c6e7b4777b99d;hp=55d815c4b5530359e4d7dbf1269116cd7497138e;hpb=116234d6c6e5cd7517cafd3ffa47fff92c6c3f42;p=stockfish

diff --git a/src/search.cpp b/src/search.cpp
index 55d815c4..da20f15e 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -218,7 +218,7 @@ void Search::think() {
   if (Options["Use Search Log"])
   {
       Log log(Options["Search Log Filename"]);
-      log << "\nSearching: "  << RootPos.to_fen()
+      log << "\nSearching: "  << RootPos.fen()
           << "\ninfinite: "   << Limits.infinite
           << " ponder: "      << Limits.ponder
           << " time: "        << Limits.time[RootColor]
@@ -391,7 +391,8 @@ namespace {
 
             // Sort the PV lines searched so far and update the GUI
             sort<RootMove>(RootMoves.begin(), RootMoves.begin() + PVIdx + 1);
-            sync_cout << uci_pv(pos, depth, alpha, beta) << sync_endl;
+            if (PVIdx + 1 == PVSize || Time::now() - SearchTime > 3000)
+                sync_cout << uci_pv(pos, depth, alpha, beta) << sync_endl;
         }
 
         // Do we need to pick now the sub-optimal best move ?
@@ -793,7 +794,7 @@ split_point_start: // At split points actual search starts from here
       {
           Signals.firstRootMove = (moveCount == 1);
 
-          if (thisThread == Threads.main_thread() && Time::now() - SearchTime > 2000)
+          if (thisThread == Threads.main_thread() && Time::now() - SearchTime > 3000)
               sync_cout << "info depth " << depth / ONE_PLY
                         << " currmove " << move_to_uci(move, pos.is_chess960())
                         << " currmovenumber " << moveCount + PVIdx << sync_endl;
@@ -892,7 +893,7 @@ split_point_start: // At split points actual search starts from here
       }
 
       // Check for legality only before to do the move
-      if (!pos.pl_move_is_legal(move, ci.pinned))
+      if (!RootNode && !SpNode && !pos.pl_move_is_legal(move, ci.pinned))
       {
           moveCount--;
           continue;
@@ -1003,8 +1004,10 @@ split_point_start: // At split points actual search starts from here
                   alpha = value; // Update alpha here! Always alpha < beta
                   if (SpNode) sp->alpha = value;
               }
-              else // Fail high
+              else
               {
+                  assert(value >= beta); // Fail high
+
                   if (SpNode) sp->cutoff = true;
                   break;
               }
@@ -1214,9 +1217,7 @@ split_point_start: // At split points actual search starts from here
 
           if (futilityValue < beta)
           {
-              if (futilityValue > bestValue)
-                  bestValue = futilityValue;
-
+              bestValue = std::max(bestValue, futilityValue);
               continue;
           }
 
@@ -1224,7 +1225,10 @@ split_point_start: // At split points actual search starts from here
           if (   futilityBase < beta
               && depth < DEPTH_ZERO
               && pos.see(move) <= 0)
+          {
+              bestValue = std::max(bestValue, futilityBase);
               continue;
+          }
       }
 
       // Detect non-capture evasions that are candidate to be pruned