import javax.swing.*;

public class Display {
  public static void main(String[] args) throws Exception {
    // creating instance of JFrame
    int boardWidth = 400;
    int boardHeight = 400;

    JFrame game = new JFrame();
    game.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    game.setSize(boardWidth, boardHeight);
    game.setVisible(true);
    game.setLocationRelativeTo(null);
    game.setResizable(false);

    Chess chess = new Chess(boardWidth, boardHeight);
    game.add(chess);
    game.pack();
    chess.requestFocus();
  }
}

// images :
// https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQN6qOyhiUDLlTlwl19PaMTeiY5rSOqkUqu-g&s