user12698: I'm looking for non commercial program where I can import PGNs. And to visualize the games I want simple GUI and analysis-table like you will find here. Additionally it would be nice if the program provides an interface where I can write my own statistics.  
What I found was gnu chess, sunfish and jose. But those programs are more then I'm looking for.

user924: SCID does everything you are looking for, it's great chess database software.

12698: <p>I'm looking for non commercial program where I can import PGNs. And to visualize the games I want simple GUI and analysis-table like you will find <a href="http://chessok.com/?page_id=352" rel="nofollow noreferrer">here</a>. Additionally it would be nice if the program provides an interface where I can write my own statistics.  </p>

<p>What I found was <a href="https://www.gnu.org/software/chess/" rel="nofollow noreferrer">gnu chess</a>, <a href="https://github.com/thomasahle/sunfish" rel="nofollow noreferrer">sunfish</a> and <a href="http://jose-chess.sourceforge.net/" rel="nofollow noreferrer">jose</a>. But those programs are more then I'm looking for.</p>
 924: <p><a href="http://scid.sourceforge.net/" rel="noreferrer">SCID</a> does everything you are looking for, it's great chess database software.</p>
