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I asked the question in WPSE before, but the answer I got so far is a complicated one. I'm actually looking for a .htaccess way. Here's what the scenario is:

My blog archive URLs were like:

http://example.com/2014/03

I changed my site's permalink from /%postname%/ to /%postid%/%postname%/, and using Redirection plugin, I set a redirection like:

and it's working. But the problem occurs in the archive URLs. The new archive URL generated with a /date/ basename before the dates, like:

http://example.com/date/2014/03

I'm trying to use the same Redirection plugin to redirect the URL, but failed:

I then tried writing .htaccess on my own (with no .htaccess writing experience) with:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

with the help of htaccess editor and this blog. But failed too.

How can I let my blog not to get 404 on such archive URL? I'm afraid, I'm dumb with rewrite rule till now. :(

##UPDATE## Here's how my .htaccess file just now:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

And with Liam Sorsby's answer, I tried pasting the code

RewriteEngine on
RewriteRule ^([0-9]+)/([0-9]+)$ /date/$1/$2 [R=301,L]

just below the # END WordPress once, and then tried again just before # END WordPress. But both time failed.

I asked the question in WPSE before, but the answer I got so far is a complicated one. I'm actually looking for a .htaccess way. Here's what the scenario is:

My blog archive URLs were like:

http://example.com/2014/03

I changed my site's permalink from /%postname%/ to /%postid%/%postname%/, and using Redirection plugin, I set a redirection like:

and it's working. But the problem occurs in the archive URLs. The new archive URL generated with a /date/ basename before the dates, like:

http://example.com/date/2014/03

I'm trying to use the same Redirection plugin to redirect the URL, but failed:

I then tried writing .htaccess on my own (with no .htaccess writing experience) with:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

with the help of htaccess editor and this blog. But failed too.

How can I let my blog not to get 404 on such archive URL? I'm afraid, I'm dumb with rewrite rule till now. :(

UPDATE

Here's how my .htaccess file just now:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

And with Liam Sorsby's answer, I tried pasting the code

RewriteEngine on
RewriteRule ^([0-9]+)/([0-9]+)$ /date/$1/$2 [R=301,L]

just below the # END WordPress once, and then tried again just before # END WordPress. But both time failed.

I asked the question in WPSE before, but the answer I got so far is a complicated one. I'm actually looking for a .htaccess way. Here's what the scenario is:

My blog archive URLs were like:

http://example.com/2014/03

I changed my site's permalink from /%postname%/ to /%postid%/%postname%/, and using Redirection plugin, I set a redirection like:

and it's working. But the problem occurs in the archive URLs. The new archive URL generated with a /date/ basename before the dates, like:

http://example.com/date/2014/03

I'm trying to use the same Redirection plugin to redirect the URL, but failed:

I then tried writing .htaccess on my own (with no .htaccess writing experience) with:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

with the help of htaccess editor and this blog. But failed too.

How can I let my blog not to get 404 on such archive URL? I'm afraid, I'm dumb with rewrite rule till now. :(

I asked the question in WPSE before, but the answer I got so far is a complicated one. I'm actually looking for a .htaccess way. Here's what the scenario is:

My blog archive URLs were like:

http://example.com/2014/03

I changed my site's permalink from /%postname%/ to /%postid%/%postname%/, and using Redirection plugin, I set a redirection like:

and it's working. But the problem occurs in the archive URLs. The new archive URL generated with a /date/ basename before the dates, like:

http://example.com/date/2014/03

I'm trying to use the same Redirection plugin to redirect the URL, but failed:

I then tried writing .htaccess on my own (with no .htaccess writing experience) with:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

with the help of htaccess editor and this blog. But failed too.

How can I let my blog not to get 404 on such archive URL? I'm afraid, I'm dumb with rewrite rule till now. :(

##UPDATE## Here's how my .htaccess file just now:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

And with Liam Sorsby's answer, I tried pasting the code

RewriteEngine on
RewriteRule ^([0-9]+)/([0-9]+)$ /date/$1/$2 [R=301,L]

just below the # END WordPress once, and then tried again just before # END WordPress. But both time failed.

I'd like to refer first to the main question in WPSE. The answer I got so far is a complicated one. I mentioned how I tried the .htaccess way:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

Can anybody figure me out a way on how to achieve the desired result using .htaccess?

I asked the question in WPSE before, but the answer I got so far is a complicated one. I'm actually looking for a .htaccess way. Here's what the scenario is:

My blog archive URLs were like:

http://example.com/2014/03

I changed my site's permalink from /%postname%/ to /%postid%/%postname%/, and using Redirection plugin, I set a redirection like:

and it's working. But the problem occurs in the archive URLs. The new archive URL generated with a /date/ basename before the dates, like:

http://example.com/date/2014/03

I'm trying to use the same Redirection plugin to redirect the URL, but failed:

I then tried writing .htaccess on my own (with no .htaccess writing experience) with:

Redirect permanent http://example.com/([0-9]+)/([0-9]+) http://example.com/date/([0-9]+)/([0-9]+)

with the help of htaccess editor and this blog. But failed too.

How can I let my blog not to get 404 on such archive URL? I'm afraid, I'm dumb with rewrite rule till now. :(