Penelopes Web Soliraire is harder than Streets and Alleys which in turn is harder than Beleaguered Castle.
The additional difficulty is to my mind quite unnecessary but there we go. It's here and you can play it, but I would strongly suggest one of the other varieties.
The game is more difficult (aka almost impossible) because only Kings can be placed on an empry place on the Tableau.
I have *never* won this particular game of Patience.
Penelopes Web Solitare. I salute you!