Handle invalid promoted piece (fairy-stockfish#416)

RainRat · Mar 1, 2024 · 62577a4 · 62577a4
1 parent bbe0d95
commit 62577a4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/position.cpp b/src/position.cpp
@@ -314,7 +314,7 @@ Position& Position::set(const Variant* v, const string& fenStr, bool isChess960,
       }
 
       // Promoted shogi pieces
-      else if (token == '+' && (idx = piece_to_char().find(ss.peek())) != string::npos)
+      else if (token == '+' && (idx = piece_to_char().find(ss.peek())) != string::npos && promoted_piece_type(type_of(Piece(idx))))
       {
           ss >> token;
           put_piece(make_piece(color_of(Piece(idx)), promoted_piece_type(type_of(Piece(idx)))), sq, true, Piece(idx));