Board board = new Board(10,10);
Player[] players = new Player [ 4 ];
players[0] = PlayerFactory.getPlayer(0,"clever");
players[1] = PlayerFactory.getPlayer(1,"foolish");
players[2] = PlayerFactory.getPlayer(2,"monar");
players[3] = PlayerFactory.getPlayer(3,"giko");
while (!board.isCompleted()) {
　for (int i = 0; i < players.length; i++) {
　　players[i].placeStone(board);
　}
}
System.out.println(board.getWinner()+" is winner.");