A new puzzle every Saturday. Solutions one week later.

Feb-18-2016
978 weeks, 1012 pages
18 years + 8 months +26 days
978x7 = 6846 days since
May-23-1998

Puzzle 868. Magic squares 3x3 and palprimes

Date New Who
Feb-17-17 Puzzle 867

Problem 65

Emmanuel Vantieghem

Dmitry Kamenetsky

Feb-10-17 Puzzle 866 Jan van Delden, Emmanuel Vantieghem
Feb-03-17 Puzzle 865

Conjecture 79

Puzzle 864

Jan van Delden

Dmitry Kamenetsky, Emmanuel Vantieghem and Carlos Rivera

José de Jesús Camacho

 

 

 

 


These pages will be updated every Saturday morning -- Last Modified on: Friday, 17-Feb-2017 17:36:35 MST

"Many thanks to Martha Rivera, Miguel H. Rivera and  G. L. Honaker, Jr. for reviewing and correcting the  very first version of these pages, dated on May 23, 1998 "

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