I discovered Deuces on Politaire.
Its much more difficult than Busy Aces, and as with Busy Aces two packs of cards and a lot of time and patience is required.
In fact, despite playing for hours, I've never managed to win at Deuces Solitaire:(.
I kept thinking, just one more game, one more game. And I kept playing and playing. It is strangely compulsive.
I finally gave up.
Deuces Solitaire. I salute you!
The Foundations start with a Two. Hence the name 'Deuce Solitaire' (or so I imagine).
As the first card on the Foundations is a two, and in case you intend to try this infuriating game of Solitaire, the Foundations wrap on the Ace. So the sequence is 2,3,4,5,6,7,8,9,J,Q,K,A.