The Origin of the Game of Pirate Bridge by Aleister Crowley in Vanity Fair, Jan 1917.

“Last summer, during odd days, I worked at this sixfold problem—at the attempt to eliminate these six great drawbacks. I was alone, in camp, and had to puzzle it all out with three dummies before me,—but I worked hard at it, and suddenly the great idea dawned upon me: Choose your own partner!” [via]