Connect to SphinxQL through Linux command-line

I am trying to connect to SphinxQL server through Linux command-line this way:

> mysql -P 9306

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

My Sphinx config file has 2 listen entries:

listen                  = 9312
listen                  = 9306:mysql41

searchd daemon is running:

> ps ax | grep searchd
10727 ?        S      0:00 /usr/local/sphinx/bin/searchd
10728 ?        Sl     0:00 /usr/local/sphinx/bin/searchd

Regular search queries work perfectly:

> /usr/local/sphinx/bin/search StackOverflow | more

Sphinx 2.0.4-release (r3135)
Copyright (c) 2001-2012, Andrew Aksyonoff
Copyright (c) 2008-2012, Sphinx Technologies Inc (http://sphinxsearch.com)

using config file '/usr/local/sphinx/etc/sphinx.conf'...
index 'test1': query 'StackOverflow ': returned 2 matches of 2 total in 0.009 sec

displaying matches:
1. document=1788212, weight=1797
        id=1788212
...

So, what I am doing wrong? How can I get access to SphinxQL console?

Any hint will be appreciated. Thanks in advance!