From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Tue, 25 Aug 2020 21:41:57 +0000 (+0200)
Subject: Tweak king proximity
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=bf426fe89c19bb528f765b3a076bd3d2ff709c79;p=fairystockfish.git

Tweak king proximity

shogi STC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 2506 W: 1314 L: 1176 D: 16
http://www.variantfishtest.org:6543/tests/view/5f3fb2cb6e23db221d9e9018

shogi LTC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 976 W: 546 L: 429 D: 1
http://www.variantfishtest.org:6543/tests/view/5f435c1e6e23db221d9e903e

crazyhouse STC
LLR: -2.97 (-2.94,2.94) [0.00,10.00]
Total: 18825 W: 9170 L: 8999 D: 656
http://www.variantfishtest.org:6543/tests/view/5ee348126e23db104fb88ada

crazyhouse LTC
LLR: -2.96 (-2.94,2.94) [0.00,10.00]
Total: 13908 W: 6715 L: 6614 D: 579
http://www.variantfishtest.org:6543/tests/view/5ee68ebb6e23db104fb88bad
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 70f47dd..eba72b0 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -132,7 +132,7 @@ namespace {
   };
 
   // KingProximity contains a penalty according to distance from king
-  constexpr Score KingProximity = S(1, 3);
+  constexpr Score KingProximity = S(2, 4);
   constexpr Score EndgameKingProximity = S(0, 10);
 
   // Assorted bonuses and penalties