Math Magic Touching Archive
Reptiles Tiling Packing Touching Graphs Numbers Matrices Chess Games Other
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014


Convex Spectra
(April 1999)

updated 8/16/12

Surround Numbers
(May 1999)

updated 3/5/02

Entangled Polyominoes
(October 2001)

updated 12/21/02

Pairwise Touching Polycubes
(September 2003)

updated 9/11/03

Neighborly Tilings
(December 2004)

updated 1/26/12

No-Touch Tilings
(July 2005)

updated 7/30/05

Shapes Touching
n Others
(November 2005)

updated 11/29/05

Tree-Like Buildings
(October 2006)

updated 12/3/06

Rotating Rectangles in Boxes
(May 2009)

updated 5/22/09

Circles Covering
Grid Rectangles
(March 2013)

updated 3/31/13

Smallest Square Overlaps
(October 2014)

updated 10/15/14