Blog Index in other filename

Hi there. I have a question for my blog located at https://reckord.info

I made myself an index file named index.php, and renamed WP’s index.php to blog.php. The WP files are located in /wordpress/, while those two files (and the .htaccess) are located in the root dir. I set the URLs in config.php:

define('WP_SITEURL', 'https://reckord.info/wordpress');
define('WP_HOME', 'https://reckord.info/blog.php');

but the question, it always have the trailing slash (https://reckord.info/blog.php/) so now the pages are located after https://reckord.info/blog.php (for example: https://reckord.info/blog.php/my-works/82.titled-puzzle.html). How can I get rid of that?

By the way, I’ve restored the files. So you can’t check it, sorry.