private void setChars(char [][] board)
	{
		for(int x = 1; x < board.length; x++)
		{
			for(int y = 1; y < board[x].length; y++)
			{
				//matches each index to their corresponding char in the sym array and replaces them
				//based on the char number generated earlier
				if(board[x][y] == '1')
					board[x][y] = sym[chn][1];
				else if(board[x][y] == '2')
					board[x][y] = sym[chn][2];
				else if(board[x][y] == '3')
					board[x][y] = sym[chn][3];
				else if(board[x][y] == '4')
					board[x][y] = sym[chn][4];
				else
					board[x][y] = '!'; //if the number is not found for some reason, set it to '!'
			}
		}
	}