From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Sat, 17 Feb 2018 18:29:29 +0000 (+0100)
Subject: Remove spurious setting of alpha
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=15b5213550e1b52684da930e8a0f446f6dfa4911;p=crazywa.git

Remove spurious setting of alpha

Alpha is reset at the end of the iteration, and setting it to startAlpha
at the beginning destroys the stand-pat contribution in QS.
---

diff --git a/dropper.c b/dropper.c
index b46c031..0535836 100644
--- a/dropper.c
+++ b/dropper.c
@@ -1263,7 +1263,6 @@ Search (int stm, int alpha, int beta, StackFrame *ff, int depth, int reduction,
 	int curMove, highDepth;
 	iterDepth++;
 	highDepth = (iterDepth > depth ? iterDepth : depth) - 1; // reply depth for high-failing moves
-	alpha = startAlpha;
 	pvPtr = pvStart; *pvPtr++ = 0; // empty PV
 	bestScore = upperScore = startScore; bestNr = 0; // kludge: points to 0 entry in moveStack
 	resultDepth = MAXPLY;