wp-login.php issue

I have protected the wp-login.php,/wp-admin/ and rpcxml.php File trought .htaccess file to a specific country (switzerland).

Badyl, also the protected sites are not working anymore afterwards, as they need wp-login.php.

How can I enable them to use the protected articles, but that they are not allowed tto try “user/password” combinations.

Would it not make more sense to split the high secuity stuff (login as admin) from low protection stuff, but it would be possible to add a better layer of protection?

How could I solve that? Is there another plugin which doesn’t need wp-login for article protection?

Thanks for your help.

Regards
Stefan