Simplify PvNode Reduction

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 697c8cfed1f3100eb25f80b7ab43cbb50c6c87fa..c7e6fff053c7778cb469d6a4b1c9841279596783 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1136,9 +1136,9 @@ moves_loop: // When in check, search starts here
       if (ttCapture)
           r++;
 
-      // Decrease reduction for PvNodes based on depth (~2 Elo)
+      // Decrease reduction for PvNodes (~2 Elo)
       if (PvNode)
-          r -= 1 + (depth < 6);
+          r--;
 
       // Decrease reduction if ttMove has been singularly extended (~1 Elo)
       if (singularQuietLMR)