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Julio Kaplan

Julio Kaplan

Julio Kaplan in 1974
Medal record
1966 Student Team Chess Championship – Örebro, Sweden Third Board
1976 Student Team Chess Championship – Caracas, Venezuela First Board

Julio Argentino Kaplan Pera[1][2] (born 25 July 1950, Argentina) is an Argentine-born Puerto Rican chess player, former world junior champion and software developer founder of Heuristic Software.

Born in Argentina, he emigrated in 1964 to Puerto Rico,[3] where he was raised and studied, and then later in his life to the United States, where he works for Autodesk. Earlier in his career, In the 1980s he programmed dedicated chess computers for SciSys and Saitek. In the early 90s he collaborated on the chess program Socrates.[4]


  • Chessplayer 1
  • Software developer 2
  • See also 3
  • References 4
  • External links 5


In 1967, he was the Puerto Rico National Chess Champion. In addition, in 1967, he also won the World Junior Chess Championship in Jerusalem, followed by the well-known Raymond Keene, Jan Timman, Robert Hübner, etc. This victory earned Julio Kaplan the International Master title.

In 1968, he tied for 6–9th in Malaga. In 1969, he took 4th in Stockholm (Svetozar Gligorić, in Los Angeles.

Kaplan played for the Puerto Rico National Chess Team in four Chess Olympiads.

He played for the Puerto Rico National Chess Team (1966, 1971) and for the USA (1976) in the World Student Team Chess Championships.

  • In 1966, at third board in 13th WSTCC in Örebro (+7 –1 =3)
  • In 1971, at first board in 18th WSTCC in Mayagüez (+4 –2 =6)
  • In 1976, at first board in 21st WSTCC in Caracas (+3 –0 =5).

He won the individual gold medal at Örebro 1966, and the team silver medal at Caracas 1976.

Software developer

Kaplan was always interested in computer chess, founding Heuristic Software Corporation[5] whose first development was Heuristic Alpha in 1990–91.[6] That evolved into Socrates and later Socrates II.

Socrates II was one of their most successful programs, winning the 1993 ACM International Chess Championship[7] defeating opponents with special-purposed hardware and software for playing chess, like HiTech[8] and Cray Blitz[9] even when Socrates II ran on a stock 486 PC.

These achievements drew Electronic Arts's notice and they hired Kaplan's development team to develop Kasparov's Gambit, incorporating former world chess champion Garry Kasparov as brand name and adviser.[10] Kasparov's Gambit was the first and sole effort of Electronic Arts to enter the chess market.

See also


  1. ^ Revista Ajedrez (Argentina), October 1967, page 343
  2. ^ The 105th Commencement, University of California, Berkeley, 1968
  3. ^ Reportaje al M.I. Julio Kaplan
  4. ^ "Kaplan, Julio" (in German). Schachcomputer wiki. Retrieved 9 January 2011. 
  5. ^ Julio Kaplan at Manta site. Retrieved on September 20, 2012.
  6. ^ Heuristic Alpha. CPW Chess Programming Wiki. Consulted on September 19, 2012.
  7. ^ ACM 1993 Chess Programming Wiki. Retrieved on September 6, 2012
  8. ^ HiTech Chess Programming Wiki. Retrieved on September 6, 2012
  9. ^ Cray Blitz Chess Programming Wiki
  10. ^ Julio Kaplan Chess Programming Wiki Retrieved on September 6, 2012

External links

  • Julio P Kaplan rating card at FIDE
  • Julio P Kaplan player profile and games at
  • Interview (Spanish)
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