A two deck solitaire with a twist, the "Devil's Six" cards that must be played indirectly. Former US Secretary of Defense, Donald Rumsfeld learn the game from diplomat Andre de Staercke, who learned from Sir Winston Churchill. Donald Rumsfeld published the game as an mobile app on Jan 20, 2016, but it can also be played with two standard decks of playing cards with identical backs.

We may earn a small commission when you buy through these links.