Triangles in Squares updated 10/5/08	Circles in Squares updated 7/19/02	Squares in Squares updated 11/5/05	Tans in Squares updated 3/7/08
Triangles in Triangles updated 8/30/08	Circles in Triangles updated 7/19/02	Squares in Triangles updated 7/23/02	Circles in Tans updated 5/8/09
Triangles in Circles updated 7/13/08	Circles in Circles updated 6/27/05	Squares in Circles updated 6/27/05	Tans in Circles updated 8/23/07
Triangles in Hexagons updated 4/18/08	Circles in Hexagons updated 1/5/06	Squares in Tans updated 6/27/05	Tans in Tans updated 12/6/07
L's in Squares updated 7/31/05	Squares in L's updated 10/5/08	L's in Circles updated 9/10/08	Circles in L's updated 1/5/06

Circles in Ellipses updated 6/8/07	Circles in Arbitrary Triangles updated 6/26/07

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Covering

Triangles Covering Triangles updated 8/11/05	Triangles Covering Circles updated 8/10/09	Triangles Covering Squares updated 4/12/09

Squares Covering Triangles updated 5/26/09	Squares Covering Circles updated 5/8/09	Squares Covering Squares updated 5/24/04

Circles Covering Triangles updated 7/6/05	Circles Covering Circles updated 6/28/05	Circles Covering Squares updated 7/6/05

Tiling

Polyominoes in Rectangles updated 3/17/99	Arithmetic L's in Squares updated 7/20/02	Pythagorean L's updated 7/20/00	Tiling Almost Squares updated 7/20/02

Packing in Squares

Harmonic Series of Polygons updated 7/21/02	Geometric Series of Polygons updated 7/21/02	Consecutive Dominoes in Squares updated 1/10/04	Consecutive L's in Squares updated 3/30/05

Animations and Rigid Packings

Animated Rectangles in Squares updated 7/19/02	Animated Circles in Rectangles updated 7/19/02	Rigid Circles in Squares updated 9/4/06	Rigid Rectangles in Squares updated 6/12/06

Heilbronn Problems

Heilbronn Problem for Squares updated 6/10/09	Heilbronn Problem for Circles updated 7/1/07	Heilbronn Problem for Triangles updated 7/1/07	Heilbronn Problem for Convex Regions updated 7/13/07

Related Problems

Cubes In Cubes updated 7/19/02	Tree Planting Problems updated 6/14/09	Minimizing the Ratio of Maximum to Minimum Distance updated 2/15/09	Minimizing the Ratio of Maximum to Minimum Distance in 3 Dimensions updated 4/12/09