Circles in a square  Circles in a circle  Circles in rectangles  Circles in an isosceles right triangle  Circles in a semicircle  Circles in a circular quadrant 
Last updated:  Last updated:  Last updated:  Last updated:  Last updated:  Last updated: 
18Oct2013  12Aug2014  25Jun2013  18Mar2011  16Apr2011  04Jul2011

calculation form  calculation form  calculation form 
Circles in a circle (r_{i} = i)  Circles in a circle (r_{i} = i^{+1/2})  Circles in a circle (r_{i} = i^{1/2})  Circles in a circle (r_{i} = i^{2/3})  Circles in a circle (r_{i} = i^{1/5})  Circles in a circle (benchmark instances)  Packomania's wizard 
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17Jul2014  06Aug2014  17Jul2014  01Jul2014  27Jun2014  17Jul2014  08Sep2011

Circles in a square (r_{i} = i)  Circles in a square (r_{i} = i^{+1/2})  Circles in a square (r_{i} = i^{1/2}) 
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15Apr2015  15Apr2015  08May2013

Circles in rectangles with variable aspect ratio  Circular open dimension problem (CODP) 
Last updated:  Last updated: 
10Dec2011  01Nov2012 
Spheres in a cube 
Last updated: 
25Jun2013 