Revert dynamic draw value

When tested with weaker engines did not performed as expected, actually it was even a regression from standard version. bench: 8430785
official-stockfish · Mar 3, 2014 · bbd69c0 · bbd69c0
1 parent 708cb31
commit bbd69c0
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -185,8 +185,7 @@ void Search::think() {
   RootColor = RootPos.side_to_move();
   TimeMgr.init(Limits, RootPos.game_ply(), RootColor);
 
-  // Dynamic draw value: try to avoid repetition draws at early midgame
-  int cf = std::max(70 - RootPos.game_ply(), 0);
+  int cf = Options["Contempt Factor"] * PawnValueMg / 100; // From centipawns
   DrawValue[ RootColor] = VALUE_DRAW - Value(cf);
   DrawValue[~RootColor] = VALUE_DRAW + Value(cf);