text: //h
  #include "tic_tac_toe.h"
  
  #ifndef TIC_TAC_TOE_3_H
  #define TIC_TAC_TOE_3_H
  
  class TicTacToe3: public TicTacToe
  {
  public:
      TicTacToe3() : TicTacToe(3){}
      TicTacToe3(std::vector<string> p, string winner) : TicTacToes(p, winner) {}
  
  private:
      bool check_column_win() override;
      bool check_row_win() override;
      bool check_diagonal_win() override;
  };
  
  #endif 