Part 2 · Lineage — Where Puzzles Came From
Chapter 3
Puzzles of Paper and Wood
11 articles
From the 15 Puzzle to Rubik's Cube. Pre-digital objects had already invented today's verbs: arrange, rotate, fit, transfer.
Articles in this chapter
- 1.The Birth of the Jigsaw Puzzle (1760s) — The Man Who Cut Up Maps, and a Verb Unchanged for 260 Years2026-07-07 · Toki · 6 min
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.
- 2.Tangram (Qi Qiao Ban) — Around 1810, Seven Pieces of Lies and Truth2026-07-12 · Toki · 6 min
Seven shapes, five triangles, one square, one parallelogram, enough to form countless silhouettes. The tangram's origin lies in late-18th-century China, but its history was long distorted by a fabricated chronicle puzzle maker Sam Loyd wrote in 1903. I dig up both the toy's true voyage and the fiction that obscured it.
- 3.The 15 Puzzle (1880) — The Unsolvable Move with Which Sam Loyd Fooled the World2026-06-16 · Toki · 12 min
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.
- 4.Tower of Hanoi (1883) — The 64 Disks That Never End, and the Legacy of Recursion2026-06-29 · Toki · 6 min
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.
- 5.Henry Dudeney (1907) — Four Hinged Pieces That Turn a Triangle Into a Square2026-07-08 · Toki · 5 min
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.
- 6.The Crossword (1913) — The Grid Lineage That Began with Arthur Wynne's Diamond2026-06-30 · Toki · 6 min
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.Hakoiri Musume / Klotski (1930s) — The Lineage of Blocks That Trapped Cao Cao2026-08-19 · Toki · 6 min
In the West as a patent drawing, in China as a paper cutout re-enacting Cao Cao's defeat, and in Japan as a wooden toy called Hakoiri Musume — nearly the same sliding-block puzzle arose independently in three places between the 1890s and the 1930s, with no evidence any referenced the others. Martin Gardner published its 81-move optimal solution in Scientific American in 1964; Microsoft's Windows Entertainment Pack carried it to PCs worldwide in 1991. This is the record of that parallel evolution, up to 2021's Blockee on Steam, which names Klotski as its inspiration in its own words.
- 8.Soma Cube (1933) — Twenty-Seven Fragments Born in a Quantum Mechanics Lecture2026-08-02 · Toki · 6 min
In 1933, half-listening to a lecture on quantum mechanics in Copenhagen, Piet Hein enumerated every non-convex fragment that could be made by joining four or fewer unit cubes by their faces, and produced the seven-piece, 27-cube Soma cube. Popularized worldwide by Martin Gardner's 1958 column and commercialized by Parker Brothers in 1969, its 240 solutions were later hand-solved by John Conway and Michael Guy, and its debt is acknowledged by none other than Rubik's Cube inventor Erno Rubik. This piece traces ninety years of a solid-dissection puzzle lineage.
- 9.Pentomino (1965) — How Solomon Golomb's Five-Square Shape Became Tetris2026-07-29 · Toki · 5 min
In 1965, American mathematician Solomon W. Golomb published Polyominoes, a book that gathered the theory of the twelve five-square shapes known as pentominoes. The naming traces back to a 1953 Harvard lecture; Martin Gardner's column carried it to general readers in 1957; a Russian translation appeared in 1975. Then in 1984, a young Moscow computer scientist named Alexey Pajitnov, drawing on his own childhood memories of pentominoes, moved shapes on an experimental computer, and Tetris was born. This piece traces the more than thirty years it took a five-square shape to travel the world.
- 10.Rubik's Cube (1974) — A Labyrinth of 43 Quintillion States, and a Single Solution2026-06-25 · Toki · 6 min
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.
- 11.Hanayama Cast Puzzle (1983) — How One Designer Linked Metal Toys to Digital Escape Games2026-07-19 · Toki · 5 min
In 1983, Japanese toy maker Hanayama released Cast Puzzle, a line of metal disassembly puzzles. Nob Yoshigahara (1936-2004), who oversaw the series, unknowingly bridged this wordless metal-puzzle experience to two later landmarks: the 1996 sliding-block puzzle Rush Hour, and Fireproof Games' The Room (2012), whose puzzle-box design later reached Steam. This piece traces a four-decade lineage of a puzzle that still refuses to fully close.