Solution code: Give the two words which must be written instead of the question marks consecutively.
on 20. February 2015, 14:33 by pin7guin
@fridgrer: Nein, völlig falsche Richtung.
on 5. October 2010, 16:43 by zhergan
Hi to all an English-Label is placed under the puzzle!
on 2. October 2010, 06:32 by Richard
Very interesting puzzle! Thanks.
on 27. September 2010, 12:45 by Luigi
Kim!!!!! Congratulations, I still haven´t any idea....
Your brain structure must be extraordinary... ;-)
on 27. September 2010, 10:44 by zhergan
Hi to all. A new icon is added under the puzzle. I think this one will help.
on 26. September 2010, 23:04 by zhergan
Hi to all! The title is changed a bit!