From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Mon, 29 May 2017 14:58:11 +0000 (+0200)
Subject: Restore analogy stack pointer on second stand pat
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=05e9c04cc7f325698fa082687e1f6da3bd207903;p=crazywa.git

Restore analogy stack pointer on second stand pat
---

diff --git a/dropper.c b/dropper.c
index 50079b2..9a7bd00 100644
--- a/dropper.c
+++ b/dropper.c
@@ -1202,7 +1202,7 @@ if(PATH)printf("      Hit, d=%d, checker = %x\n",entry->depth,f.checker);
     if(depth <= 0) { // QS
 	if(ff->checker != CK_NONE && ff->tpGain > 0) anaEval = 50-INF; // forbid stand pat if horizon check tossed material
 	if(anaEval > alpha) {
-	    if(anaEval >= beta) { ff->depth = 1; moveSP = oldSP; return anaEval + (anaEval < curEval); } // stand-pat cutoff
+	    if(anaEval >= beta) { ff->depth = 1; moveSP = oldSP; anaSP = oldna; return anaEval + (anaEval < curEval); } // stand-pat cutoff
 	    alpha = startScore = anaEval; maxDepth = 0; // we will not fail low, so no extra iterations
 	}
 	if(maxDepth <= 0) {
@@ -1230,7 +1230,7 @@ if(PATH)printf("      Hit, d=%d, checker = %x\n",entry->depth,f.checker);
     // move generation
     if(!earlyGen) { // generate moves if we had not done so yet
 	if(MoveGen(stm, &m, f.rights)) { // impossible (except for hash collision giving wrong in-check status)
-	    if(DEBUG) Dump("King capture"); ff->depth = MAXPLY; moveSP = oldSP; return INF;
+	    if(DEBUG) Dump("King capture"); ff->depth = MAXPLY; moveSP = oldSP; anaSP = oldAna; return INF;
 	}
  	if(f.checkDist && maxDepth <= 1) ipMask = SafeIP(&f);
     }