From: RainRat <rainrat78@yahoo.ca>
Date: Wed, 17 Apr 2024 15:11:50 +0000 (-0700)
Subject: wallOrMove bug fix (#763)
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=c0a94e4231633b6894e1ea313bdcf253b0d0019c;p=fairystockfish.git

wallOrMove bug fix (#763)
---

diff --git a/src/position.cpp b/src/position.cpp
index ade4798..b9f34be 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1558,7 +1558,7 @@ void Position::do_move(Move m, StateInfo& newSt, bool givesCheck) {
   Piece captured = piece_on(type_of(m) == EN_PASSANT ? capture_square(to) : to);
   if (to == from)
   {
-      assert((type_of(m) == PROMOTION && sittuyin_promotion()) || (is_pass(m) && pass(us)));
+      assert((type_of(m) == PROMOTION && sittuyin_promotion()) || (is_pass(m) && (pass(us) || var->wallOrMove )));
       captured = NO_PIECE;
   }
   st->capturedpromoted = is_promoted(to);
@@ -2128,7 +2128,7 @@ void Position::undo_move(Move m) {
 
   assert(type_of(m) == DROP || empty(from) || type_of(m) == CASTLING || is_gating(m)
          || (type_of(m) == PROMOTION && sittuyin_promotion())
-         || (is_pass(m) && pass(us)));
+         || (is_pass(m) && (pass(us) || var->wallOrMove)));
   assert(type_of(st->capturedPiece) != KING);
 
   // Reset wall squares