From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Wed, 15 Apr 2020 15:20:47 +0000 (+0200)
Subject: Cover all paths in CTF bonus
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=25549e2ee585ec5303a52640b37bedfdb338a461;p=fairystockfish.git

Cover all paths in CTF bonus

racingkings STC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 748 W: 283 L: 198 D: 267
http://www.variantfishtest.org:6543/tests/view/5e95e2ff6e23db4f73614caf

racingkings LTC
LLR: 2.95 (-2.94,2.94) [0.00,10.00]
Total: 1801 W: 565 L: 472 D: 764
http://www.variantfishtest.org:6543/tests/view/5e9600cd6e23db4f73614cc3
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index f478716..5f9bfce 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -912,7 +912,7 @@ namespace {
         Bitboard processed = 0;
         // Traverse all paths of the CTF pieces to the CTF targets.
         // Put squares that are attacked or occupied on hold for one iteration.
-        for (int dist = 0; ctfPieces && (ctfTargets & ~processed); dist++)
+        for (int dist = 0; (ctfPieces || onHold) && (ctfTargets & ~processed); dist++)
         {
             score += make_score(2500, 2500) * popcount(ctfTargets & ctfPieces) / (1 + dist * dist);
             Bitboard current = ctfPieces;