A new puzzle every Saturday. Solutions one week later.

957 weeks, 991 pages
18 years + 4 months +2 days
957x7 = 6699 days since

Puzzle 849. 9x9 Magical square and pandigitals.

Date New Who
Set-23-16 Puzzle 848 Jan van Delden and Emmanuel Vantieghem
Set-16-16 Puzzle 847

Puzzle 844

Problem 46

Emmanuel Vantieghem and Vicente Felipe Izquierdo

A new record solution for this puzzle by Michael Hürter

A useful and urgent update about prime gaps from Robert Smith. Thank you!!!

Set-9-16 Puzzle 846 Emmanuel Vantieghem, Dmitry Kamenetsky and Carlos Rivera





These pages will be updated every Saturday morning -- Last Modified on: Friday, 23-Sep-2016 15:02:36 MDT

"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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