cosmictrombonis 
This one felt only slightly tedious. In my opinion however, and unfortunately, it was one of very few that have offered a nice challenge throughout the entire series.
Posted on 8/24/11 8:47 PM

garaig 
Another sadistic one...
Posted on 5/20/09 9:48 AM

gicaesar 
http://www.ngw.nl/int/slo/c/cimhova.htm
Posted on 7/27/08 11:18 PM

magicwoodster 
That one was a bit tricky.
Posted on 9/9/06 3:50 AM