public static void main(String[] args) throws IOException {
PlayingField pf = new PlayingField(4,4);
pf.initialize(2);
System.out.println(pf);
while(pf.movesAvailable()){
System.out.print("Enter direction (u,d,l,r): ");
// Read the char
Scanner s = new Scanner(System.in);
String str = s.nextLine();