You mean you want to search for "Magnus windmills" or something like that?
Chess tactics database

You can do that on almost any database.
Chessgames is best known for its free database with historic games.
I thought you wanted something more unusual.

I know i can do that in all databases. I wanted a database with tactical positions only, where I can search for specific players.
Does anyone know of a chess tactics database, preferably free, where one can search on players? There are lots and lots of databases online - but they just present the position or if they present they give the players there isn't a search function.
The database can be pgn, CB or CA or online.
Thanks for any suggestions.