NOTEBOOM MEMORIAL
The Leiden Chess Club in the Netherlands is still the holder and the organizer of the longer Memorial Tournament ever organized.
Since 1978, the tournament is a Swiss Open of six rounds played during a weekend. The World Champion Max Euwe won the first tournament in 1936 and in 2017 the 77th tournament was organized.
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The winners were: 1936 M. Euwe, 1937 P.van Hoorn, 1938 W. Muehring, 1939 T. van Scheltinga, 1941 H. van Steenis, 1942 H. van Steenis, 1947 H. van Steenis , 1948 C.B. v.d. Berg, 1949 M. Euwe, 1950 J.H. Donner, 1951 J.H. Donner, 1952 J. van Bruijn, 1953 C.B. v.d. Berg, 1954 C.B. v.d. Berg, 1955 N. Cortlever, 1956 E. Spanjaard, 1957 E. Spanjaard, 1958 F. Roessel, 1959 C.B. v.d. Berg, 1960 K. Langeweg, 1961 K. Langeweg, 1962 H. Crabbendam, 1963 C.P. van Weezel, 1964 J.C. Kort, 1965 M. Botwinnik, 1966 D.D. van Geet, 1967 J.H. Timman, 1968 A. de Groot, 1969 J.C. Kort, 1970 T. Krabbe, 1971 W.A. Verreck, 1972 L.J. Kerkhoff, 1973 C.P. van Weezel, 1974 C.P. van Weezel, 1975 Ph. du Chattel, 1976 J. v.d. Wiel, 1977 J. v.d. Wiel, 1978 RAG de Graaff, 1979 J.H.Maclès/B. Carlier, 1980 R. Kuijf, 1981 B. Carlier, 1982 L. Konings 1983 A. v.d. Berg, 1984 G. Welling, 1985 B. Schneider, 1986 R. Kuijf, 1987 R. Busch, 1988 R. Kuijf, 1989 J. Vogel, 1990 M. Roeder, 1991 E. Ermenkov, 1992 R. Cifuentes 1993 E. Schmittdiel, 1994 R. Cifuentes, 1972 L.J. Kerkhoff, 1995 R. Ziatdinov, 1996 I. Rogers, 1997 A. Kalinin, 1998 M. Golubev 1999 P. Nikolic 2000 C. Bauer, 2001 F. Nijboer, 2002 V. Ikonnikov 2003 N. Miezis, 2004 R. Lahaye, 2005 O. Korneev, 2006 E. Van der Doel, 2007, 2008 P. Nikolic, 2009 Y. Solodovnichenko, 2010 A. Bitalzadeh, 2011 J. Smeets, 2012 E. Van den Doel, 2013 S. Ferdorchuk, 2014 P. Nikolic, 2015 N. Gulyev, 2016 B. Bok, 2017 S. Fedorchuk, 2018 R. Kevlishvili, 2019 P. Nikolic, 2020 C. Schoppen.