Your question is 3x3 Tic-Tac-Toe Class. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Implement a 3x3 Tic-Tac-Toe class with methods to make a move, check for a winner, and display the board.