tictactoe: check for invalid input - c++

Question

I'm building a tictactoe game in c++, and whenever users input a number that isn't 1-9, the output is supposed to be 'invalid move' and continue the game
else
{
cout << "Invalid move ";
player--;
cin.ignore();
cin.get();
}
but it instead ends up generating the board repeatedly, and essentially breaking the game. Here is the full code:
// This is a trial for tic tac toe in C++
#include <iostream>
using namespace std;
char *squares = new char[9]{'1', '2', '3', '4', '5', '6', '7', '8', '9'};
void play();
void getBoard();
int checkWin();
int main()
{
char *playAgain = new char;
do
{
play();
cout << "Do you want to play again(y/n): ";
cin >> *playAgain;
} while (tolower(*playAgain) == 'y');
delete squares, playAgain;
cin.get();
return 0;
}
//Play the game
void play()
{
int *i = new int;
int player = 1;
int *choice = new int;
char *mark = new char;
do
{
getBoard();
player = (player%2) ? 1 : 2;
cout << "Enter your choice: ";
cin >> *choice;
*mark = (player == 1) ? 'X' : 'O';
if (squares[0] == '1' && *choice == 1)
{
squares[0] = *mark;
}
else if (squares[1] == '2' && *choice == 2)
{
squares[1] = *mark;
}
else if (squares[2] == '3' && *choice == 3)
{
squares[2] = *mark;
}
else if (squares[3] == '4' && *choice == 4)
{
squares[3] = *mark;
}
else if (squares[4] == '5' && *choice == 5)
{
squares[4] = *mark;
}
else if (squares[5] == '6' && *choice == 6)
{
squares[5] = *mark;
}
else if (squares[6] == '7' && *choice == 7)
{
squares[6] = *mark;
}
else if (squares[7] == '8' && *choice == 8)
{
squares[7] = *mark;
}
else if (squares[8] == '9' && *choice == 9)
{
squares[8] = *mark;
}
else
{
cout << "Invalid move ";
player--;
cin.ignore();
cin.get();
}
*i = checkWin();
player++;
} while (*i == -1);
getBoard();
if (*i == 1)
{
cout << "\aPlayer " << --player << " Wins" << endl;
delete mark, choice, i;
}
else
{
cout << "\aGame Draw" << endl;
delete mark, choice, i;
}
}
// Print the board
void getBoard()
{
cout << "\n\n\tTic Tac Toe\n\n";
cout << "Player 1 (X) - Player 2 (O)" << endl
<< endl;
cout << endl;
cout << " | | " << endl;
cout << " " << squares[0] << " | " << squares[1] << " | " << squares[2] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << squares[3] << " | " << squares[4] << " | " << squares[5] << endl;
cout << "_____|_____|_____" << endl;
cout << " | | " << endl;
cout << " " << squares[6] << " | " << squares[7] << " | " << squares[8] << endl;
cout << " | | " << endl
<< endl;
}
/**********************************************************************************************************
Return 1 if some one wins
Return 0 if draw
Return -1 if the game is not over
***********************************************************************************************************/
int checkWin()
{
if (squares[0] == squares[1] && squares[1] == squares[2])
{
return 1;
}
else if (squares[0] == squares[3] && squares[3] == squares[6])
{
return 1;
}
else if (squares[0] == squares[4] && squares[4] == squares[8])
{
return 1;
}
else if (squares[3] == squares[4] && squares[4] == squares[5])
{
return 1;
}
else if (squares[1] == squares[4] && squares[4] == squares[7])
{
return 1;
}
else if (squares[6] == squares[4] && squares[4] == squares[2])
{
return 1;
}
else if (squares[6] == squares[7] && squares[7] == squares[8])
{
return 1;
}
else if (squares[2] == squares[5] && squares[5] == squares[8])
{
return 1;
}
else if (squares[0] != '1' && squares[1] != '2' && squares[2] != '3' && squares[3] != '4' && squares[4] != '5' && squares[5] != '6' && squares[6] != '7' && squares[7] != '8' && squares[8] != '9')
{
return 0;
}
else
{
return -1;
}
}
How do I resolve this?
ps: any tips on improving the game logic would also be appreciated