When Percival Everett’s novel “James” won the Pulitzer Prize for fiction on Monday, it seemed like an obvious choice. Everett’s subversive reimagining of “Huckleberry Finn” had already landed critical acclaim and a string of literary honors, including the National Book Award and the Kirkus Prize.

In a surprising twist, the prize went to Everett after the Pulitzer committee’s board failed to reach a consensus on the three finalists that the fiction jury initially presented — Rita Bullwinkel’s “Headshot,” Stacey Levine’s “Mice 1961,” and Gayl Jones’s “The Unicorn Woman.”

The process that led to “James” winning wasn’t a matter of the board imposing its own selection, but the result of a procedural backstop designed to give the board more choices when it reaches an impasse on the first crop of finalists.

In a typical year, one of the three finalists is chosen. But when the 17 voting members of the board deliberated on the fiction finalists last Friday, none of the three choices received a majority vote. At that point, the board could have voted not to award a fiction prize this year, as it has on rare occasions. Or it could vote to consider a fourth choice, which had also been chosen by the fiction jury.

In this case, the board voted to consider the fourth selection, “James,” which was submitted as an additional option earlier this year, after the board got the list of finalists and asked the jury for another title to consider. “James” got the necessary majority vote.

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