A new puzzle every Saturday. Solutions one week later.

Basic Stats
1091 weeks, 1124 pages & 7687 days
20 years + 10 months + 28 days

>>>>Puzzlers Statistics<<<<
(updated on Feb 28 2019)

Puzzle of the week

Puzzle 950. Bi-truncatable primes

Curios by CR in Prime Curios!
(updated on Feb 28 2019)


The last five news

Date Puzzle about


April-19-19 Puzzle 949 Adam Stinchcombe, Pierandrea Formusa, Jeff Heleen and Simon Cavegn
April-12-19 Puzzle 948


Giovanni Resta

Ken Wilke, Giovanni Resta

April-05-19 Puzzle 68 Bogdan Golunski, announces a prime bordered magic square 503x503.
March-29-19 Puzzle 947 Emmanuel Vantieghem
March-22-19 Puzzle 946 Giovanni Resta, Emmanuel Vantieghem, John Arioni and Jan van Delden.


These pages will be updated every Saturday morning -- Last Modified on: Friday, 19-Apr-2019 14:11:23 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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