Puzzle Incident History

Episodes

1. Ep. 9
   The Real Escape Game (2007) — Two Rooms in Kyoto That Grew Into a Worldwide Locked Room

   2026-07-10

   On July 7, 2007, at the Inspiblo gallery in Kyoto, Takao Kato split roughly 100 guests into 14 teams across two rooms as entertainment for the third-anniversary party of his free paper SCRAP. That night became the first installment of what would be called the 'Real Escape Game' — a phenomenon that grew into a worldwide commercial industry. Kato has testified himself that the spark was watching a staffer get hooked on web escape games. I read this night as a rare documented case of a puzzle walking out of the screen and into physical space.

2. Ep. 8
   Henry Dudeney (1907) — Four Hinged Pieces That Turn a Triangle Into a Square

   2026-07-08

   In 1907, English puzzle maker Henry Dudeney published, within The Canterbury Puzzles, the Haberdasher's Puzzle: cutting an equilateral triangle into just four pieces that reform into a square. Hinged together, the pieces could transform with a single fold, and the dissection drew attention in its day -- yet the proof that four pieces were truly minimal remained unresolved for a surprisingly long time, settled only by a 2024 computational-geometry paper. Tracing Dudeney's rivalry with Sam Loyd and his rediscovery through Martin Gardner, this piece rereads how a paper puzzle took 117 years to reach computer science.

3. Ep. 7
   The Birth of the Jigsaw Puzzle (1760s) — The Man Who Cut Up Maps, and a Verb Unchanged for 260 Years

   2026-07-07

   In 1760s London, the map engraver John Spilsbury mounted printed maps on wood and cut them apart along national borders, selling them as 'Dissected Maps' — the commercial starting point of what would later be called the jigsaw puzzle. This essay revisits the context in which the format was born as a tool for teaching geography, the structural insight that where you cut is itself the design, and the lineage that runs from Depression-era die-cut cardboard to the 2021 VR title Puzzling Places — a format that survived 260 years without ever changing its verb.

4. Ep. 6
   Nikoli (1980) — The Reader-Grown Puzzle Magazine, and the Road Sudoku Took Around the World

   2026-07-02

   Puzzle Communication Nikoli, launched in 1980, was Japan's first magazine devoted to puzzles. Its name came from a racehorse; the prototype of Sudoku came from America. This essay traces forty years in which Nikoli's mode of production—reader submissions and handmade problems—gave birth to Slitherlink (1989) and Nurikabe (1991), and sent Sudoku around the world via Hong Kong judge Wayne Gould's generator program, rereading the source of a question at the heart of modern puzzle design: who should make a good problem?

5. Ep. 5
   Professor Layton and the Curious Village (2007) - A Vessel That Carried 1966's Riddles onto a Handheld

   2026-07-01

   On February 15, 2007, Level-5 released Professor Layton and the Curious Village for the Nintendo DS. Its bundle of riddles derives directly from Akira Tago's Atama no Taisou (Kobunsha, 1966), the puzzle books producer Akihiro Hino adored as a child. This essay traces, from a historian's view, how Layton's stance of sinking a paper puzzle collection into a narrative vessel connects a forty-year-old book to a handheld, and onward to today's deduction puzzles.

6. Ep. 4
   The Crossword (1913) — The Grid Lineage That Began with Arthur Wynne's Diamond

   2026-06-30

   On December 21, 1913, Arthur Wynne's "Word-Cross" was printed in the entertainment supplement of The New York World. Renamed "crossword" by a typesetting error, the pastime spread explosively through Simon & Schuster's 1924 book and went global via The Times in 1930 and The New York Times in 1942. This essay traces how the three inventions of grid, crossing and clue still live as a design vocabulary for thinking puzzles, from paper cells to Nikoli's pencil puzzles and modern digital works.

7. Ep. 3
   Tower of Hanoi (1883) — The 64 Disks That Never End, and the Legacy of Recursion

   2026-06-29

   In 1883 the French mathematician Édouard Lucas released a small wooden toy under the pseudonym 'N. Claus (de Siam).' Three pegs, disks of differing size, and just two rules. Yet beneath that plain surface lay the mathematics of recursion: moving n disks demands a minimum of 2^n−1 moves. This essay revisits the toy's true origin, the fabricated Benares legend in which the world ends when 64 disks are moved, and what the ideas of 'recursion' and 'state space' bequeathed to later computer science and to puzzle design today.

8. Ep. 2
   Rubik's Cube (1974) — A Labyrinth of 43 Quintillion States, and a Single Solution

   2026-06-25

   In 1974, the Budapest architect Ernő Rubik carved a small cube as a teaching aid—and ended up placing an entire 'state space,' some 43 quintillion configurations with exactly one solved form, into the palm of a hand. This piece traces the object's precise provenance through primary and secondary sources—its 1974 invention, its 1980 global debut, and the 2010 proof that 'God's Number is 20'—and reads, as history, how an object with no screen and no power supply embodied half a century early the vocabulary modern puzzle designers now take for granted: reversibility, a unique solution, and a space to be searched.

9. Ep. 1
   The 15 Puzzle (1880) — The Unsolvable Move with Which Sam Loyd Fooled the World

   2026-06-16

   In early 1880 a craze for the '15 Puzzle' swept America and Europe. But Sam Loyd, whom the world believed to be its inventor, was an impostor who only claimed authorship sixteen years after the craze had ended. This essay traces the box's true origin and the 1879 proof that the 'swapped 14-and-15' board Loyd staked his prize on is mathematically unsolvable, and rereads the legacy sliding puzzles left to modern digital puzzle design: the guarantee of solvability.