code: def tictactoe(self, moves: List[List[int]]) -> str:
      # Initialize the board, n = 3 in this problem.
      n = 3
      board = [[0] * n for _ in range(n)]
  
      # Check if any of 4 winning conditions to see if the current player has won.
      def checkRow(row, player_id):
          for col in range(n):
              if board[row][col] != player_id:
                  return False
          return True
  
      def checkCol(col, player_id):
          for row in range(n):
              if board[row][col] != player_id:
                  return False
          return True
  
      def checkDiagonal(player_id):
          for row in range(n):
              if board[row][row] != player_id:
                  return False
          return True
  
      def checkAntiDiagonal(player_id):
          for row in range(n):
              if board[row][n - 1 - row] != player_id:
                  return False
          return True
  
      # Start with player_1.
      player = 1
  
      for move in moves:
          # extract
          row, col = move
          board[row][col] = player
  
          # If any of the winning conditions is met, return the current player's id.
          if (
              checkRow(row, player)
              or checkCol(col, player)
              or (row == col and checkDiagonal(player))
              or (row + col == n - 1 and checkAntiDiagonal(player))
          ):
              return "A" if player == 1 else "B"
  
          # If no one wins so far, change to the other player alternatively.
          # That is from 1 to -1, from -1 to 1.
          player *= -1
  
      # If all moves are completed and there is still no result, we shall check if
      # the grid is full or not. If so, the game ends with draw, otherwise pending.
      return "Draw" if len(moves) == n * n else "Pending"
  
label_desc: Use image node_id 1 for calling the Solution obj's underlying member method code with example usage: obj.tictactoe(moves) and returns: unknown, True, True, True, True, unknown, False, False, False, False