X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=587506ec44ff91218b730f4cc948e74b1afecc98;hp=83c06a6215182b3c3ec3eb2c3005855297d6888f;hb=aea2fde6117be2fbda1caa62c842dea766780be5;hpb=2416242c966bfccd5a779e037dfe0d2d4cd8f3fe

diff --git a/src/search.cpp b/src/search.cpp
index 83c06a62..587506ec 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -20,7 +20,7 @@
 #include <algorithm>
 #include <cassert>
 #include <cmath>
-#include <cstring>
+#include <cstring>   // For std::memset
 #include <iostream>
 #include <sstream>
 
@@ -650,7 +650,7 @@ namespace {
         assert(eval - beta >= 0);
 
         // Null move dynamic reduction based on depth and value
-        Depth R = (3 + depth / 4 + std::min((eval - beta) / PawnValueMg, 3)) * ONE_PLY;
+        Depth R = ((823 + 67 * depth) / 256 + std::min((eval - beta) / PawnValueMg, 3)) * ONE_PLY;
 
         pos.do_null_move(st);
         (ss+1)->skipEarlyPruning = true;
@@ -1446,8 +1446,12 @@ moves_loop: // When in check and at SpNode search starts from here
         ss << "info depth " << d / ONE_PLY
            << " seldepth "  << selDepth
            << " multipv "   << i + 1
-           << " score "     << ((!tb && i == PVIdx) ? UCI::value(v, alpha, beta) : UCI::value(v))
-           << " nodes "     << pos.nodes_searched()
+           << " score "     << UCI::value(v);
+
+        if (!tb && i == PVIdx)
+              ss << (v >= beta ? " lowerbound" : v <= alpha ? " upperbound" : "");
+
+        ss << " nodes "     << pos.nodes_searched()
            << " nps "       << pos.nodes_searched() * 1000 / elapsed
            << " tbhits "    << TB::Hits
            << " time "      << elapsed