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Dave manuel wikipedia
Famous Trick Donkeys
Puzzle invented by Sam Loyd in 1858
Famous Trick Donkeys is a puzzle invented by Sam Loyd in 1858,[1] first printed on a card supposed to promote P.T.
Barnum's circus. At that time, the puzzle was first called "P.T. Barnum's trick mules".[2] Millions of cards were sold, with an estimated income for Sam Loyd of $10,000 from 1871[3]—more than $200,000 in 2023 dollars.[4]
History
According to Martin Gardner, the puzzle may have been inspired by a 17th-century Persian design, currently in the Museum of Fine Arts, Boston.[5] (It was purchased by the museum in 1914 from Victor Goloubew.
The latter acquired it in 1912 and exhibited it in Paris.[6])
In 1858, Sam Loyd says he thought of a puzzle card that consisted on two mules and two riders. Dividing the card into three pieces, the player had to place the cards in a way that each mule had one rider on.
In 1871, after he had published The