Posted on February 15, 2023 at 12:00 PM by Sadye Scott-Hainchek

The Cain's Jawbone universe is expanding.

The person who most recently solved the fiendishly difficult puzzle, John Finnemore, is writing a sequel to it.

It's currently known as Untitled Mystery, though people who pledge during the crowdfunding campaign will learn what the book is really called.

Finnemore's version, reports the Guardian, is a locked-room mystery that challenges readers to rearrange one hundred picture postcards to explain why a person was found dead in a locked study of a complete stranger.

(That echoes the original puzzle, which requires sleuths to place its pages in the right order to solve six murders depicted within it.)

And one last update: no one was able to use artificial intelligence to solve Cain's Jawbone, as was encouraged last year.

A data scientist with the AI platform Zindi theorized that the algorithms "trained on recent works," which Cain's Jawbone is most decidedly not — having come out almost a hundred years ago.

But don't worry; an official Cain's Jawbone Handbook will come out in late 2024 or 2025 with step-by-step instructions for solving the puzzle.

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Categories: Today in Books

Tagged As: Mystery, The Guardian

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