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Constructed by Charles Godfrey Gumpel (c.1835 - 1921), an Alsatian manufacturer of artificial limbs, it took some 6 or 7 years to build and was first shown in 1878 at Gumpel's home in Leicester Square, London. Mephisto was mainly operated by chess master Isidor Gunsberg.
Mephisto consisted of a life-size figure of an elegant devil, with one foot rendered as a cloven hoof, dressed in red velvet and seated in an armchair in front of an unenclosed, open-sided table. This table set-up was provided to reassure the player that there were no compartments beneath the board where a man could be hidden (as in "The Turk"). In addition, the public was invited to inspect the contraption before each exhibition, with the intention of demonstrating that there was no player inside. The chessboard was noted as having had indentations on each square that held the bases of the chessmen to prevent them from moving unintentionally. The figure of Mephisto itself was bolted to the table at the chest to enable its arm full reach across the board.
It was the first automaton to win a Chess tournament when it was entered in the Counties Chess Association in London in 1878 and at one time had its own chess club. In 1879 Mephisto, with Gunsberg, went on tour, defeating every male player. When playing ladies, however, Mephisto would first obtain a winning position before losing the game then courteously offer to shake their hand afterwards.
Mephisto was later used as the name of a top-line dedicated chess computer which won the World Microcomputer Chess Championship in the years 1985-1990. The name is now used by the consumer electronics company Saitek on its line of standalone chess computers.
- The Turk hoax of 1769 to 1854, destroyed in fire
- Ajeeb hoax of 1868 to 1929, destroyed in fire
- El Ajedrecista actual electromechanical machine of 1912 that is extant
- Tim Harding. "Isidor Arthur Gunsberg". Eminent Victorian Chess Players: Ten Biographies. London: McFarland & Company, Inc. pp. 283–286. ISBN 978-0-7864-6568-2.
- Gumpel, Charles Godfrey (1889). "Mephisto", the marvellous automaton, exhibited at the International Theatre, Exposition Universelle, Paris, 1889. T. Pettitt & Co. p. 46.