Which online database is the best? I search an online chess games database which should be free and it would be nice if no
 registration would be required.

I want to be able to search for the basic criterions year and ELO.

It would be nice if the database contains only classical games. It is annoying if
 rapid, blitz, blind and friendly games are also in the database.

Does anyone know a database fulfilling my criterions ?
How about this website: http://database.chessbase.com/js/apps/database/

It's pretty good.