From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Fri, 11 Dec 2020 12:49:22 +0000 (+0100)
Subject: Tweak horde imbalance
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=43020ffdb88282a14f7c274291f3ea777b28e08a;p=fairystockfish.git

Tweak horde imbalance

horde STC
LLR: 2.96 (-2.94,2.94) [0.00,10.00]
Total: 1562 W: 834 L: 710 D: 18
http://www.variantfishtest.org:6543/tests/view/5fd290846e23db221d9e94d2

horde LTC
LLR: 2.94 (-2.94,2.94) [0.00,10.00]
Total: 714 W: 411 L: 299 D: 4
http://www.variantfishtest.org:6543/tests/view/5fd2b1a46e23db221d9e94dc
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 49cd52e..e038503 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -1178,7 +1178,7 @@ namespace {
                 for (File f = FILE_A; f <= pos.max_file(); ++f)
                 {
                     l = m; m = r; r = popcount(pos.pieces(Us, PAWN) & shift<EAST>(file_bb(f)));
-                    score -= make_score(40, 40) * m / (1 + l * r);
+                    score -= make_score(70, 70) * m / (1 + l * r);
                 }
             }
             else if (pos.count<PAWN>(Them) == pos.count<ALL_PIECES>(Them) && pos.pieces(Us, ROOK, QUEEN))