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demi de

Publications

Eureka 2010


July 20, 2012

icosidodecahedron9


July 20, 2012

Eureka 2001


July 20, 2012

icosidodecahedron3


July 20, 2012

icosidodecahedron1


July 20, 2012

Eureka 1999


July 20, 2012

Eureka 2002


July 20, 2012

Eureka 2006


July 20, 2012

Eureka 1998


July 20, 2012

Eureka 2009


July 20, 2012

icosidodecahedron5


July 20, 2012

Eureka 2007


July 20, 2012

Chess Evolution 2


June 2, 2012

move by move:Caro-Kann


January 14, 2012

Crux Mathematicorum 1996


December 16, 2011

Crux Mathematicorum 1991


December 16, 2011

Lessons with a GM


December 13, 2011

Grandmaster vs Amateur


December 3, 2011