X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fhistory.cpp;fp=src%2Fhistory.cpp;h=f10e7619126fe03528fb82347164a0f979dcfcb9;hp=6849839ca2305161b24b32e4be106de833126c2f;hb=20524070901db89bd6e97b54d28dc3a2f717b0e3;hpb=d6fdd4f6d95a2a958a73484fb7505460b12af28e

diff --git a/src/history.cpp b/src/history.cpp
index 6849839c..f10e7619 100644
--- a/src/history.cpp
+++ b/src/history.cpp
@@ -57,12 +57,6 @@ void History::success(Piece p, Square to, Depth d) {
   assert(square_is_ok(to));
 
   history[p][to] += int(d) * int(d);
-
-  // Prevent history overflow
-  if (history[p][to] >= HistoryMax)
-      for (int i = 0; i < 16; i++)
-          for (int j = 0; j < 64; j++)
-              history[i][j] /= 2;
 }
 
 
@@ -76,12 +70,6 @@ void History::failure(Piece p, Square to, Depth d) {
   assert(square_is_ok(to));
 
   history[p][to] -= int(d) * int(d);
-
-  // Prevent history underflow
-  if (history[p][to] <= -HistoryMax)
-      for (int i = 0; i < 16; i++)
-          for (int j = 0; j < 64; j++)
-              history[i][j] /= 2;
 }