Perhaps this is too complex for me

I use ACF 5.0 (Advanced Custom Fields) and want to produce a list of posts filtered by a particular custom field. I wanted a simple plugin to paste some php into that can output a short-code that I can drop into whatever page that I want to display these filtered posts.

I’ve tried many many plugins out there and nothing seems to work. Is this something I could achieve with your plugin?

Basically I have variations of this code below and need to put it somewhere:

<?php 

// args
$args = array(
	'numberposts' => -1,
	'post_type' => 'Checkbox',
	'meta_key' => 'high_impression',
	'meta_value' => 'High Impression'
);

$the_query = new WP_Query( $args );

// The Loop
?>
<?php if( $the_query->have_posts() ): ?>
	<ul>
	<?php while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
		<li>
			<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
		</li>
	<?php endwhile; ?>
	</ul>
<?php endif; ?>

<?php wp_reset_query(); ?>

https://www.ads-software.com/plugins/inject-query-posts/