Oblique Strategies

Oblique Strategies (subtitled Over One Hundred Worthwhile Dilemmas) is a deck of 7-by-9-centimetre (2.8 in × 3.5 in) printed cards in a black container box, created by Brian Eno and Peter Schmidt and first published in 1975. Each card offers a challenging constraint intended to help artists (particularly musicians) break creative blocks by encouraging lateral thinking.

In 1970, Peter Schmidt created "The Thoughts Behind the Thoughts", a box containing 55 sentences letterpress printed onto disused prints that accumulated in his studio, which is still in the possession of Eno. Eno, who had known Schmidt since the late 1960s, had been pursuing a similar project himself (which he had handwritten onto a number of bamboo cards and given the name "Oblique Strategies" in 1974). There was a significant overlap between the two projects, and so, in late 1974, Schmidt and Eno combined them into a single pack of cards and offered them for general sale. The set went through three limited edition printings before Schmidt suddenly died in early 1980, after which the card decks became rather rare and expensive. Sixteen years later software pioneer Peter Norton convinced Eno to let him create a fourth edition as a Christmas gifts for his friends (not for sale, although they occasionally come up at auction). Eno's decision to revisit the cards and his collaboration with Norton in revising them is described in detail in his 1996 book A Year with Swollen Appendices. With public interest in the cards undiminished, in 2001 Eno once again produced a new set of Oblique Strategies cards. The number and content of the cards vary somewhat from edition to edition. In May 2013 a limited edition of 500 boxes, in burgundy rather than black, was issued.

The entire story of Oblique Strategies, with the content of all the cards, exhaustive history and commentary, is documented in a website widely acknowledged as the authoritative source, put together by musician and educator Gregory Alan Taylor.

The text of Schmidt's "The Thoughts Behind the Thoughts" was published by Mindmade Books in 2012.

Each card contains a phrase or cryptic remark which can be used to break a deadlock or dilemma situation. Some are specific to music composition; others are more general. Examples include:

From the introduction to the 2001 edition:

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