Nginx give access to subdirectory - wordpress

Question

We're running a Wordpress site on a Nginx server, I am now trying to install Piwik there in the /stats folder.
This is the default Nginx configuration that came with the install, I added the "/stats" block myself, but it doesn't work - it gets rendered by WordPress whenever I go to mysite.com/stats instead of going to that folder.
Desired behavior would be that the /stats subdirectory (and all files and directories in it) is just parsed by PHP as would be on a default install without Nginx rules
Any clue what I'm missing?
server_name _;
port_in_redirect off;
client_header_buffer_size 4k;
client_body_buffer_size 128k;
client_max_body_size 16m;
root /var/www/html;
index index.html index.php;
charset utf-8;
log_not_found off;
gzip_static on;
gzip_types text/css application/javascript text/xml;
gzip_vary on;
gzip on;
# redirect server error pages to the static page /50x.html
#
error_page 500 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
location #rewrite {
rewrite ^.*$ /index.php?$args;
}
error_page 404 #rewrite;
# Add trailing slash to */wp-admin requests.
rewrite /wp-admin$ $scheme://$host$uri/ permanent;
# WP Multisite rewrites
rewrite /([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) /$2 last;
rewrite /([_0-9a-zA-Z-]+/)?(.*\.php)$ /$2 last;
location / {
try_files $uri $uri.gz $uri/ #rewrite;
}
location ~ \.sql$ {
rewrite ^.*$ /index.php?$args;
}
# We do not want to run php from wp uploads
location ~* /(?:uploads|files)/.*\.php$ {
rewrite ^.*$ /index.php?$args;
}
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(/.+)$;
if (!-f $document_root$fastcgi_script_name) {
return 404;
}
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_intercept_errors off;
}
location /stats {
try_files $uri $uri/ /index.php?$args;
index index.php;
}
location = /favicon.ico {
access_log off;
expires 2w;
add_header Cache-Control public;
try_files $uri #rewrite;
}
location ~* \.(js|css|jpg|jpeg|png|gif|ico|woff|woff2|ttf|otf|eot|pdf|xml|mp4|ogg|mp3|mov|wmv|avi|cur|rtf|txt|swf)$ {
add_header Cache-Control public;
add_header Access-Control-Allow-Origin *;
expires 2w;
try_files $uri $uri.gz;
}

Answer 1

The rules for multi-site WordPress, particularly this one: rewrite /([_0-9a-zA-Z-]+/)?(.*\.php)$ /$2 last; will redirect any /stats/index.php URI back to WordPress's /index.php.
If you are not using a multi-site WordPress, you can safely delete the redundant rewrite rules.
If you are using a multi-site WordPress, some redesign is required.