updating the entire thing

src/backend/Board.java

@@ -196,7 +196,7 @@ public class Board {
 	        // Update its internal coordinates
 	        piece.setX(newX);
 	        piece.setY(newY);
-	        lastMove= new Move(oldX, oldY, newX, newY, piece);
+	        lastMove= new Move(oldX, oldY, newX, newY, piece);//tracks the last move made
 	        System.out.println(" Move saved: " + oldX + "," + oldY + " to " + newX + "," + newY);
 	        piece.setDidMove(true);// setting that the piece has been moved 
 	        
@@ -242,9 +242,6 @@ return false; }
 		return lastMove;
 	}
 	
-			
-
-	
 	/**
 	 * Reverts the board state back one move.
 	 */
@@ -266,10 +263,10 @@ return false; }
 	    }
 
 	    // 3) Restore all other game‐state fields
-	    this.chosenPiece        = prev.chosenPiece;
-	    this.turnNumber         = prev.turnNumber;
-	    this.isTurnWhite        = prev.isTurnWhite;
-	    this.lastMove           = prev.lastMove;
+	    this.chosenPiece = prev.chosenPiece;
+	    this.turnNumber= prev.turnNumber;
+	    this.isTurnWhite= prev.isTurnWhite;
+	    this.lastMove= prev.lastMove;
 	    this.highlightedSquares = new ArrayList<>(prev.highlightedSquares);
 
 	    // 4) **Critical**: reset each Piece’s own coordinates to match its array slot