What does this part of tictactoe game in java is asking me to do? Need clarification

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Java

code-challenge

Hello, I am doing a project on tictactoe game using java without using arrays or anything else, but listing the win combinations. Although I'm done that, this next part is confusing me and I don't know how to start it. Could you start me up with few lines of code and how to properly execute it?

I am required to this: Option #3 sets every location on the board to 'b' and then inputs the location of players' moves until the letter 'Q' is entered. Then, the board is displayed.

Note: The program should assume that x always goes first

Here's an example of Option #3...

--- Input ---	--- Expected output---
3
TL
TR
BR
Q	                 xbo
                         bbb
                         bbx
3
TM
MM
BM
TL
BL
Q

                         oxb
                         bob
                         xxb

I will also paste my code and whatever I have so far, and option 3 starts all the way below I have set a boolean and a while statement but idk what to put inside that:

import java.util.Scanner;
public class tictactoe{
    public static void main(String[]args){
        Scanner keyboard = new Scanner(System.in);
            int option = keyboard.nextInt();
            String TL = keyboard.next();
            String TM = keyboard.next();
            String TR = keyboard.next();
            String ML = keyboard.next();
            String MM = keyboard.next();
            String MR = keyboard.next();
            String BL = keyboard.next();
            String BM = keyboard.next();
            String BR = keyboard.next();
                if (option == 1){
                        System.out.print(TL);
                        System.out.print(TM);
                        System.out.print(TR);
                        System.out.print("\n"+ML);
                        System.out.print(MM);
                        System.out.print(MR);
                        System.out.print("\n"+BL);
                        System.out.print(BM);
                        System.out.print(BR);
            }
                else if (option == 2){
                        System.out.print(TL);
                        System.out.print(TM);
                        System.out.print(TR);
                        System.out.print("\n"+ML);
                        System.out.print(MM);
                        System.out.print(MR);
                        System.out.print("\n"+BL);
                        System.out.print(BM);
                        System.out.print(BR);
                            if (TL.equals(TM) && TL.equals(TR) && TL.equals(TR) && !TL.equals("b")){
                                System.out.println("\n"+TL +" "+"wins");
            }
                            else if (ML.equals(MM) && ML.equals(MR) && !ML.equals("b")){
                                System.out.println("\n"+ML +" "+"wins");
            }
                            else if (TL.equals(ML) && TL.equals(BL) && !TL.equals("b")){
                                System.out.println("\n"+TL +" "+"wins");
            }
                            else if (BL.equals(BM) && BL.equals(BR) && !BL.equals("b")){
                                System.out.println("\n"+BM +" "+"wins");
            }
                            else if (TM.equals(MM) && TM.equals(BM) && !TM.equals("b")){
                                System.out.println("\n"+TM +" "+"wins");
            }
                            else if (TR.equals(MM) && TR.equals(BL) && !TR.equals("b")){
                                System.out.println("\n"+TR +" "+"wins");
            }
                            else if (TR.equals(MR) && TR.equals(BR) && !TR.equals("b")){
                                System.out.println("\n"+TR +" "+"wins");
            }
                            else if (TL.equals(MM) && TL.equals(BR) && !TL.equals("b")){
                                System.out.println("\n"+TL +" "+"wins");
            }
                            else{
                                System.out.println("\n"+"No Winner");
            }
                        
            }
                else if (option == 3){
                            TL = "b";
                            TM = "b";
                            TR = "b";
                            ML = "b";
                            MM = "b";
                            MR = "b";
                            BL = "b";
                            BM = "b";
                            BR = "b";
                            boolean go = true;
                                while (go){
                                    
            }
        }
    }
}

What I have tried:

The above code is what i tried