diff --git a/schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java b/schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java
index e7d3c9f..4207c6b 100644
--- a/schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java
+++ b/schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java
@@ -87,6 +87,37 @@ public class ChessEngine {
         return convertPieceToDTO(piece);
     }
     
+    public boolean moveWithPromotion(MoveDTO move, String promotionPiece) {
+        String from = "" + (char)('A' + move.getFromCol()) + (8 - move.getFromRow());
+        String to   = "" + (char)('A' + move.getToCol())   + (8 - move.getToRow());
+
+        // Die Farbe bestimmen!
+        boolean isWhite = (8 - move.getFromRow()) < (8 - move.getToRow());
+        Piece promotion;
+        switch (promotionPiece) {
+            case "ROOK":   promotion = isWhite ? Piece.WHITE_ROOK   : Piece.BLACK_ROOK; break;
+            case "KNIGHT": promotion = isWhite ? Piece.WHITE_KNIGHT : Piece.BLACK_KNIGHT; break;
+            case "BISHOP": promotion = isWhite ? Piece.WHITE_BISHOP : Piece.BLACK_BISHOP; break;
+            default:       promotion = isWhite ? Piece.WHITE_QUEEN  : Piece.BLACK_QUEEN;
+        }
+
+        Move libMove = new Move(Square.valueOf(from), Square.valueOf(to), promotion);
+
+        if (board.legalMoves().contains(libMove)) {
+            board.doMove(libMove);
+
+            if (currentMoveIndex < moves.size()) {
+                moves = new ArrayList<>(moves.subList(0, currentMoveIndex));
+            }
+            moves.add(libMove);
+            currentMoveIndex++;
+            logger.info("Promotionszug durchgeführt: " + libMove);
+            return true;
+        }
+        logger.warning("Ungültiger Promotionszug: " + libMove);
+        return false;
+    }
+    
     public BoardDTO getBoardAsDTO() {
     	logger.info("Erstelle DTO-Abbild des Boards");
         PieceDTO[][] dtoBoard = new PieceDTO[8][8];