From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Sun, 13 Sep 2020 18:15:56 +0000 (+0200)
Subject: Scale evaluation for material counting
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=c97fd9d74f32d850893eeec5bf3c3955adbe4df3;p=fairystockfish.git

Scale evaluation for material counting

janggi
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 1658 W: 873 L: 749 D: 36
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index dc508ef..5000df0 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -1236,7 +1236,11 @@ namespace {
 
     // Damp down the evaluation linearly when shuffling
     if (pos.n_move_rule())
+    {
         v = v * (2 * pos.n_move_rule() - pos.rule50_count()) / (2 * pos.n_move_rule());
+        if (pos.material_counting())
+            v += pos.material_counting_result() / (10 * std::max(2 * pos.n_move_rule() - pos.rule50_count(), 1));
+    }
 
     return v;
   }