From 693edd87cbab139253642d89197b5b2b20dab673 Mon Sep 17 00:00:00 2001
From: H.G. Muller <h.g.muller@hccnet.nl>
Date: Fri, 18 Jan 2013 17:08:44 +0100
Subject: [PATCH] Fix eval sign bug in (not-yet-used) null move

---
 hachu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/hachu.c b/hachu.c
index d28e99e..87b227f 100644
--- a/hachu.c
+++ b/hachu.c
@@ -1541,7 +1541,7 @@ if(flag && depth>= 0) printf("phase=%d: first/curr/last = %d / %d / %d\n", phase
 #if 0
 	    if(curEval >= beta) {
 	      stm ^= WHITE;
-	      score = -Search(-beta, -iterAlpha, difEval, depth-3, promoSuppress & SQUARE, ABSENT);
+	      score = -Search(-beta, -iterAlpha, -difEval, depth-3, promoSuppress & SQUARE, ABSENT);
 	      stm ^= WHITE;
 	      if(score >= beta) { msp = oldMSP; retDep += 3; return score + (score < curEval); }
 	    }
-- 
1.7.0.4