From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Fri, 6 Mar 2020 14:38:02 +0000 (+0100)
Subject: Evaluate virtual pawn drop checks for bughouse
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=c627fcc41bb2472c04b1d5d668135a00faa2ff6f;p=fairystockfish.git

Evaluate virtual pawn drop checks for bughouse

bughouse
Total: 500 W: 265 L: 232 D: 3
---

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 4fc31b0..fea27a4 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -514,7 +514,7 @@ namespace {
                 unsafeChecks |= knightChecks;
             break;
         case PAWN:
-            if (pos.piece_drops() && pos.count_in_hand(Them, pt))
+            if (pos.piece_drops() && (pos.count_in_hand(Them, pt) || pos.two_boards()))
             {
                 pawnChecks = attacks_bb(Us, pt, ksq, pos.pieces()) & ~pos.pieces() & pos.board_bb();
                 if (pawnChecks & safe)