public String win(String[] board) {
		for (int i = 0; i < board.length; i++) {
			for (int j = 0; j < board[i].length(); j++) {
				char c = board[i].charAt(j);
				if (c == 'o') {
					if (check(board, i, j)) {
						return "found";
					}
				}
			}
		}
		return "not found";
	}