I have recently added Spider one suit , and it's brothers and sisters Spider two suits and Spider four suits.
I'm pleased because it showed that my admittedly strange program structure does work, and allows me to add additional games without too much effort.
I'm also pleased because I created the version which played in exactly the way that I wanted, and by this I refer to the Undo button.
It only allows moves to be undone until the most recent run from King to Ace is completed and placed on the Foundations.
Scoring to follow at some point.