I have made a little php script which I call "The Grepolis Victim Finder":
It may give an answer to this complicated question: Which player will I attack tomorrow ? :-)
In the form, you provide:
- your X,Y coordinates
- your search radius (30 =~ 3 hours with fire boats)
- min and max player (victim) score
- if you want only ghost towns
... and the list of victims will be displayed.
Suggestions are welcome !