Canfield (US) or Demon (UK) is a patience or solitaire card game with a very low probability of winning. It is an English game first called Demon Patience and described as "the best game for one pack that has yet been invented". It was popularised in the United States in the early 20th century as a result of a story that casino owner Richard A. Canfield had turned it into a gambling game, although it may actually have been Klondike and not Demon that was played at his casino. As a result it became known as Canfield in the United States, while continuing to be called Demon Patience in the United Kingdom and elsewhere. It is closely related to Klondike, and is one of the most popular games of its type. History The game is first recorded in 1891 in England by Mary Whitmore Jones as Demon Patience. She describes it as "by far the best game for one pack that has yet been invented," and goes on to say that its "very uncomplimentary name" seems to derive from its ability to frustrate. "Truly a mocking spirit appears to preside over the game, and snatches success from the player often at the last moment, when it seems just within his grasp." Nevertheless when the player does succeed in getting the patience out, "it is a triumph to have conquered the demon." In Henrietta Stannard's 1895 novel, A Magnificent Young Man, Mrs. Bladenbrook invites the curate to "show me this wonderful new game of yours". He fails to get it out declaring, "Ah, it is no use." Mrs. Bladenbrook asks, "But you are nearly done?" "But I am not quite done," replies the curate, "that is where the demon comes in. It is well called 'Demon Patience'. I have often tried a dozen times to do it, and failed each time when it has seemed just within my grasp. Believe me... it is the one form of Patience which puts all the others into the shade; it is the one form of which one never tires; it is always interesting, always fresh, always tantalizing." A 1910 publication of Fry's Magazine edited by C.B. Fry confirms that the game is called Demon patience "because the player is so often beaten by the awkward position of a single card which avoids any appearance at the critical period in a perverse manner which at