From: ianfab <ianfab@users.noreply.github.com>
Date: Sat, 28 Jul 2018 14:53:18 +0000 (+0200)
Subject: Increase king danger for drop games and nCheck
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=fcce11025afd6ef1c459aa365f4771c89c88dc67;p=fairystockfish.git

Increase king danger for drop games and nCheck

3check STC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 229 W: 162 L: 60 D: 7

crazyhouse STC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 722 W: 404 L: 294 D: 24
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 079b57a..84b0aab 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -486,8 +486,8 @@ namespace {
         unsafeChecks &= mobilityArea[Them];
 
         kingDanger +=        kingAttackersCount[Them] * kingAttackersWeight[Them]
-                     + 102 * kingAttacksCount[Them]
-                     + 191 * popcount(kingRing[Us] & weak)
+                     + 102 * kingAttacksCount[Them] * (1 + pos.captures_to_hand() + !!pos.max_check_count())
+                     + 191 * popcount(kingRing[Us] & weak) * (1 + pos.captures_to_hand() + !!pos.max_check_count())
                      + 143 * popcount(pos.blockers_for_king(Us) | unsafeChecks)
                      - 848 * !pos.count<QUEEN>(Them)
                      -   9 * mg_value(score) / 8