From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Sat, 13 Jun 2020 21:34:44 +0000 (+0200)
Subject: Tweak antichess extinction evaluation
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=3a7f6414c10e520c033ffbc87f87d6d531f1c485;p=fairystockfish.git

Tweak antichess extinction evaluation

giveaway STC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 910 W: 392 L: 297 D: 221
http://www.variantfishtest.org:6543/tests/view/5ee4d10b6e23db104fb88b3e

giveaway LTC
LLR: 2.96 (-2.94,2.94) [0.00,10.00]
Total: 874 W: 363 L: 271 D: 240
http://www.variantfishtest.org:6543/tests/view/5ee4ef196e23db104fb88b62
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 2bf903f..b2d6d99 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -973,7 +973,7 @@ namespace {
                             * (pos.extinction_value() / VALUE_MATE);
             }
             else if (pos.extinction_value() == VALUE_MATE)
-                score += make_score(5000, pos.non_pawn_material(Us)) / pos.count<ALL_PIECES>(Us);
+                score += make_score(pos.non_pawn_material(Us), pos.non_pawn_material(Us)) / pos.count<ALL_PIECES>(Us);
     }
 
     // Connect-n