loading and saving method done

src/backend/Board.java

@@ -14,6 +14,7 @@ public class Board {
 	private ArrayList<int[]> highlightedSquares= new ArrayList<>(); //stores highlighted board positions
 	private Move lastMove; // Tracks the last move; needed for en-passant rule 
 	private List<Board> previousStates = new ArrayList<>(); 
+	
 
 	//constructor for the board
 	public Board(int colNum, int lineNum) { //here colNum and lineNum are arguments 
@@ -221,14 +222,71 @@ public class Board {
 	/* saving-loading feature :*/
 
 	public String[] toFileRep() {
-		//TODO
-		return null;
-	}
+        String[] out = new String[height + 1];
+        for (int y = 0; y < height; y++) {
+            StringBuilder row = new StringBuilder();
+            for (int x = 0; x < width; x++) {
+                Piece p = board[x][y];
+                if (p == null) {
+                    row.append("--");
+                } else {
+                    row.append(p.isWhite() ? 'W' : 'B');
+                    switch (p.getType()) {
+                        case King:   row.append('K'); break;
+                        case Queen:  row.append('Q'); break;
+                        case Rook:   row.append('R'); break;
+                        case Bishop: row.append('B'); break;
+                        case Knight: row.append('N'); break;
+                        case Pawn:   row.append('P'); break;
+                    }
+                }
+                if (x < width - 1) row.append(',');
+            }
+            out[y] = row.toString();
+        }
+        // whose turn next
+        out[height] = isTurnWhite ? "W" : "B";
+        return out;
+    }
 
-	public Board(String[] array) {
-		//TODO
+	public Board(String[] fileRep) {
+        // derive dimensions
+        this.width  = fileRep[0].split(",").length;
+        this.height = fileRep.length - 1;
+        this.board  = new Piece[width][height];
+
+        // parse each row
+        for (int y = 0; y < height; y++) {
+            String[] cells = fileRep[y].split(",");
+            for (int x = 0; x < width; x++) {
+                String c = cells[x];
+                if (!c.equals("--")) {
+                    boolean white = (c.charAt(0) == 'W');
+                    char    t     = c.charAt(1);
+                    PieceType type;
+                    switch (t) {
+                        case 'K': type = PieceType.King;   break;
+                        case 'Q': type = PieceType.Queen;  break;
+                        case 'R': type = PieceType.Rook;   break;
+                        case 'B': type = PieceType.Bishop; break;
+                        case 'N': type = PieceType.Knight; break;
+                        case 'P': type = PieceType.Pawn;   break;
+                        default:  throw new IllegalArgumentException("Bad code: "+c);
+                    }
+                    // create the piece at (x,y)
+                    Piece p = new Piece(x, y, type, white);
+                    board[x][y] = p;
+                }
+            }
+        }
+
+        // restore turn flag and clear any history/highlights
+        this.isTurnWhite       = fileRep[height].equals("W");
+        this.previousStates    = new ArrayList<>();
+        this.highlightedSquares= new ArrayList<>();
+        // any other fields you need to init…
+    }
 
-	}
 	
 	
 	/* The following methods require more work ! */

src/backend/savedgame.java

@@ -0,0 +1,9 @@
+BR,BN,BB,BQ,BK,BB,BN,BR
+BP,BP,--,BP,BP,BP,BP,BP
+--,--,--,--,--,--,--,--
+--,--,BP,--,--,--,--,--
+--,--,--,--,--,WP,--,--
+--,--,--,--,--,--,--,--
+WP,WP,WP,WP,WP,--,WP,WP
+WR,WN,WB,WQ,WK,WB,WN,WR
+W