Fix a comment in HistoryMax description

Was obsoleted out some time ago.

Spotted by Justin Blanchard

Signed-off-by: Marco Costalba <mcostalba@gmail.com>

diff --git a/src/history.h b/src/history.h
index 37a00266d263554556320bf6bae3d5e50ed1b9cc..5c394cc8f17e2ed75f043ba01b0251e607127222 100644 (file)
--- a/src/history.h
+++ b/src/history.h
@@ -61,7 +61,7 @@ private:
 
 /// HistoryMax controls how often the history counters will be scaled down:
 /// When the history score for a move gets bigger than HistoryMax, all
-/// entries in the table are divided by 2. It is difficult to guess what
+/// entries in the table are divided by 4. It is difficult to guess what
 /// the ideal value of this constant is. Scaling down the scores often has
 /// the effect that parts of the search tree which have been searched
 /// recently have a bigger importance for move ordering than the moves which