From: Fabian Fichter <ianfab@users.noreply.github.com>
Date: Fri, 12 Mar 2021 18:45:31 +0000 (+0100)
Subject: Further fix for placement castling
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=5689c8db74d881597d2f5c22af8863194fe24a1c;p=fairystockfish.git

Further fix for placement castling

Also initialize castling king square on rook drops.
---

diff --git a/src/position.cpp b/src/position.cpp
index 3622b30..b52b9c8 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1509,7 +1509,10 @@ void Position::do_move(Move m, StateInfo& newSt, bool givesCheck) {
           {
               if (   (file_of(to) == FILE_A || file_of(to) == max_file())
                   && piece_on(make_square(castling_king_file(), castling_rank(us))) == make_piece(us, castling_king_piece()))
+              {
+                  st->castlingKingSquare[us] = make_square(castling_king_file(), castling_rank(us));
                   set_castling_right(us, to);
+              }
           }
       }
   }