King's Gambit, Fischer Defense King's Gambit, Fischer Defense The Fischer Defense to the King's Gambit is a chess opening variation that begins with the moves: Although 3...d6 was previously known, it did not become a major variation until Fischer advocated it in a famous 1961 article in the first issue of the "American Chess Quarterly". In the "Encyclopaedia of Chess Openings", the Fischer Defense is given the code C34. After Bobby Fischer lost a 1960 game at Mar del Plata to Boris Spassky, in which Spassky played the Kieseritzky Gambit, Fischer left in tears and promptly went to work at devising a new defense
Bobby Fischer makes him tick" and described him as "a troubled human being" with "obvious personal problems". Valery Krylov, advisor to Anatoly Karpov and a specialist in the "psycho-physiological rehabilitation of sportsmen", believed Fischer suffered from schizophrenia. Psychologist Joseph G. Ponterotto, from second-hand sources, concludes that "Bobby did not meet all the necessary criteria to reach diagnoses of schizophrenia or Asperger syndrome. The evidence is stronger for paranoid personality disorder." Magnús Skúlason, a chess player, psychiatrist and head doctor of Sogn Mental Asylum for the Criminally Insane, befriended Fischer towards the end of Fischer's life. From "Endgame", Fischer's 2011 biography by Frank