Previous cycles:
 
Undisputed:
1948-1951 World Championship cycle
1952-1954 World Championship cycle
1955-1957 World Championship cycle & rematch
1958-1960 World Championship cycle & rematch
1961-1963 World Championship cycle
1964-1966 World Championship cycle
1967-1969 World Championship cycle
1970-1972 World Championship cycle
1973-1975 World Championship cycle
1976-1978 World Championship cycle
1979-1981 World Championship cycle
1982-1984 World Championship cycle with replay and rematch
1985-1987 World Championship cycle
1987-1990 World Championship cycle
1990-1993 World Championship cycle & Split
       
PCA/Classical:
1993-1995 PCA World Championship cycle
2000 Classical World Championship
2002-2004 Classical World Championship cycle
     
FIDE:
1993-1996 FIDE World Championship cycle
1997/98 FIDE World Championship
1999 FIDE World Championship
2000 FIDE World Championship
2001/02 FIDE World Championship
2004 FIDE World Championship
2005 FIDE World Championship
 
Undisputed:
2006 World Championship
2005-2007 World Championship cycle & 2008 World Championship
2007-2010 World Championship cycle



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