From f424766b9caecfecb4eab932835d90441d17c4ae Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Sun, 18 Feb 2018 11:13:55 +0100
Subject: [PATCH] Suppress initiative bonus after spite check

The bonus for a vulnerable opponent King should be added to the static
eval, but not to the 'undetermined mate score' replacing a stand pat
after a spite check (i.e. a check tossing material) + evasion made
us reach the horizon.
---
 dropper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/dropper.c b/dropper.c
index 0535836..8261873 100644
--- a/dropper.c
+++ b/dropper.c
@@ -1246,7 +1246,7 @@ Search (int stm, int alpha, int beta, StackFrame *ff, int depth, int reduction,
 	}
     }
 
-    if(depth <= 0) {
+    if(depth <= 0 && anaEval == curEval) {
 	int bonus = (m.safety + 3*m.hole)*(10 + m.safety + m.hole + promoGain[stm+30] /*- 0*promoGain[COLOR-stm+30]*/) + 15*m.cBonus;
 	bonus += (m.escape < 2 ? 200 - m.escape*100 : 0);
 	if(bonus > 900) bonus = 900; // S4
-- 
1.7.0.4