Tweak history updates

[stockfish] / src / movepick.h

diff --git a/src/movepick.h b/src/movepick.h
index 6b3c08c7a0d3b19abf1643c994ab395a03f14cba..979709ae682885baa073488b1e335c701abfc8ea 100644 (file)
--- a/src/movepick.h
+++ b/src/movepick.h
@@ -87,7 +87,7 @@ enum StatsType { NoCaptures, Captures };
 /// ordering decisions. It uses 2 tables (one for each color) indexed by
 /// the move's from and to squares, see www.chessprogramming.org/Butterfly_Boards
 /// (~11 elo)
-typedef Stats<int16_t, 14365, COLOR_NB, int(SQUARE_NB) * int(SQUARE_NB)> ButterflyHistory;
+typedef Stats<int16_t, 7183, COLOR_NB, int(SQUARE_NB) * int(SQUARE_NB)> ButterflyHistory;
 
 /// CounterMoveHistory stores counter moves indexed by [piece][to] of the previous
 /// move, see www.chessprogramming.org/Countermove_Heuristic