Small clean-up, Sept 2021

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index ef691500e6425b651570b8c85fada80f4cf1c9ef..ac6b8608848afdf17aecd894236fbf79fc5d03d7 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -790,7 +790,6 @@ namespace {
     else
     {
         // In case of null move search use previous static eval with a different sign
-        // and addition of two tempos
         if ((ss-1)->currentMove != MOVE_NULL)
             ss->staticEval = eval = evaluate(pos);
         else
@@ -1187,6 +1186,7 @@ moves_loop: // When in check, search starts here
       {
           Depth r = reduction(improving, depth, moveCount, rangeReduction > 2);
 
+          // Decrease reduction if on the PV (~1 Elo)
           if (PvNode)
               r--;
 
@@ -1499,7 +1499,6 @@ moves_loop: // When in check, search starts here
         }
         else
             // In case of null move search use previous static eval with a different sign
-            // and addition of two tempos
             ss->staticEval = bestValue =
             (ss-1)->currentMove != MOVE_NULL ? evaluate(pos)
                                              : -(ss-1)->staticEval;