AI 4 November 2026 5 MIN READ
The Mechanical Turk: A Chess Machine Hoax
A chess machine from 1770 that was really a hidden person. How the trick worked, who it beat, and how its name ended up at Amazon.
THE SHORT ANSWER
The Mechanical Turk, shown in 1770, seemed to be a chess-playing automaton but hid a human master inside its cabinet, working it with magnets and levers. Its secret was fully explained in 1857. Amazon's Mechanical Turk, named after it, closed on 30 September 2026.
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A machine that played chess in 1770
In 1770 the Hungarian-born engineer Wolfgang von Kempelen unveiled a chess-playing machine at the court of Empress Maria Theresa in Vienna. According to Britannica, it began with a challenge: after a magic show in 1769, Kempelen claimed he could do better, and the empress gave him six months to prove it. What he built, in Tom Standage’s account in WIRED, was a life-size wooden figure in a turban, seated behind a cabinet with a chessboard on top. It became known as the Turk.
It appeared to play on its own. In fact its pieces were moved by a chess master hidden inside the cabinet.
How the trick worked
The cabinet was designed to show off its emptiness. HISTORY describes the visible clockwork as decoys: cogs and cranks that extended only part of the way through the cabinet, leaving a small space for a person. When the doors were opened for inspection, the operator slid out of sight on a mechanical seat.
Inside, the player followed the game through the pieces. Magnets in the bases of the chess pieces pulled dangling metal discs, so the operator could see which squares had been touched. Silas Weir Mitchell’s 1857 account adds that the Turk’s arm was part of a pantograph attached to a lever, letting the hidden operator move the hand and fingers. According to a Wikipedia summary of the accounts, a candle lit the compartment, and tubes carried the fumes up into the turban, where smoke was disguised by the candelabra on top. That detail comes from a letter by the operator William Kummer in 1859.
The operators were chosen for chess skill and they changed over the years. Mitchell wrote that the best of Maelzel’s players, Schlumberger, was upwards of six feet tall, so the interior had to be rebuilt to hide a tall man.
A strong player and famous opponents
The Turk was good. Standage says it could beat most people within half an hour. Philidor beat it in Paris, and his son reported that he called it his most fatiguing game of chess ever.
Some of the best stories are less certain.
- Napoleon. Most retellings, including Wikipedia, HISTORY and WIRED, put a game with Napoleon at Schönbrunn in Vienna in 1809, with deliberately illegal moves and a swept-off board. Mitchell’s 1857 account places a meeting in Berlin in 1806, with a magnet and a shawl used to test the machine. The two versions cannot both be right.
- Benjamin Franklin. Standage says the Turk beat Franklin in Paris. Mitchell says no record or tradition gives the result.
- Charles Babbage. Britannica says that Babbage watched it play in 1819, saw that it was a trick, and was inspired to think about how a real chess-playing machine could be built.
How the secret came out
Guesses came early. Robert Willis argued in 1821 that any skilful person of ordinary size could secretly animate the automaton, and Edgar Allan Poe’s 1836 essay about it opens by noting how widely it had been talked about while the method was still undecided. The Heinz Nixdorf MuseumsForum in Paderborn says that by about 1840 visitors could learn the secret for one dollar.
A full explanation was published only in 1857 in The Chess Monthly, by Silas Weir Mitchell, the son of the last private owner of the machine. Mitchell had input from his father. George Allen later said that the article mixed Maelzel’s memories with other material, and we read a reprint, not the original.
Meanwhile the Turk had changed hands. After Kempelen’s death in 1804 his son sold it to Johann Nepomuk Maelzel for half the 20,000 francs asked. It was destroyed in a fire on 5 July 1854 at the museum in Philadelphia where it was stored. Dates in the sources vary by a year here and there, such as 1769 or 1770 for the debut, so we use them as approximate.
One famous story is fiction. The tale of a legless Polish officer named Worousky hidden inside the Turk comes from the magician Robert-Houdin, and it is nevertheless repeated as fact in the eleventh edition of Encyclopaedia Britannica, according to Wikipedia.
The name that came back
In 2005 Amazon launched Mechanical Turk, a marketplace that sent small tasks that are easy for people and hard for computers to online workers. CNBC reports that it was named after the chess robot, which really was controlled by a human, and that Jeff Bezos called it artificial artificial intelligence. Wikipedia draws the same analogy: like the original, it used remote human labour hidden behind a machine interface.
The loop closed this year. Amazon announced on 25 August 2026 that it was closing the service on 30 September 2026, and its help page says the closure also applies to SageMaker Ground Truth and Amazon Augmented AI. As of today, Amazon Mechanical Turk no longer exists.
Why it matters
Every generation has its Turk. The pattern is old: a clean interface, an impressive result and a person out of sight who does the hard part. It is worth asking, for any AI product, which work is done by the machine and which by someone you cannot see.
Our take: a very old trick taught us a good question. The Turk was a trick, but it was a trick about thinking machines, and it is still the best reason to ask where the thinking actually happens.
Do you agree?
Take it to Chevlume: write your view, add your sources and let others answer. The closed alpha is by invitation.
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Sources
- Mechanical Turk · Wikipedia · Accessed
- The Mechanical Turk: AI Marvel or Parlor Trick? · Encyclopaedia Britannica · Accessed
- Monster in a Box (Tom Standage) · WIRED · Accessed
- How a Phony 18th-Century Chess Robot Fooled the World · HISTORY · Accessed
- The Last of a Veteran Chess Player - The Turk (reprint of S. W. Mitchell, The Chess Monthly, 1857) · Chess.com blog (reprint of The Chess Monthly 1857) · Accessed
- Maelzel's Chess-Player (E. A. Poe, Southern Literary Messenger) · Edgar Allan Poe Society of Baltimore · Accessed
- Wolfgang von Kempelen's Chess Turk · Heinz Nixdorf MuseumsForum (HNF) · Accessed
- Amazon service Bezos once called 'artificial artificial intelligence' is shutting down · CNBC · Accessed
- Amazon Mechanical Turk · Wikipedia · Accessed
- Amazon Mechanical Turk - Closure FAQs · Amazon Mechanical Turk (AWS) · Accessed
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