A new puzzle every Saturday. Solutions one week later.

>>>>Basic Stats<<<<
1184 weeks, 1214 pages & 8288 days
22 years + 8 month +7 days

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

Puzzle of the week

Conjecture 87.  A partition of the first 2n+1 primes

Curios by CR in Prime Curios!
(updated on July 4, 2020)

Latest ten news


Date Puzzle about


10 Jan-22-21 Puzzle 1028 Dmitry Kamenetsky, Adam Stinchcombe
9 Jan-15-21 Puzzle 1027 Emmanuel Vantieghem, Paul Cleary, Oscar Volpatti
8 Jan-8-21 Puzzle 1026


Problem 76

Emmanuel Vantieghem, Giorgos Kalogeropoulos, Michael Hürter, Oscar Volpatti, Paul Cleary, Fausto Morales-

7 Jan-1-21 Puzzle 1025


Problem 78

Emmanuel Vantieghem, Giorgos Kalogeropoulos, Oscar Volpatti, Jean-Marc REBERT, Paul Cleary, Simon Cavegn and Metin Sariyar.

G.L. Honaker, Jr.

6 Dec 25-20 Puzzle 1024


Conjecture 86

Paul Cleary, Adam Stinchcombe, Oscar Volpatti, Jan van Delden, Giorgos Kalogeropoulos, Metin Sariyar, Simon Cavegn, Jeff Heleen

Alexei Kourbatov

5 Dec 18-20 Problem 76 & Problem 79 Emmanuel Vantieghem
4 Dec-11-20 Puzzle 1023

Puzzle 1020

Oscar Volpatti, Metin Sariyar

Emmanuel Vantieghem

3 Dec-4-20 Puzzle 1023

Conjecture 86

Giorgos Kalogeropoulos, Oscar Volpatti, Metin Sariyar

Némo Sauvion

2 Nov-27-20 Puzzle 1022

Puzzle 1020

Oscar Volpatti

Emmanuel Vantieghem

1 Nov-20-20 Puzzle 1021

Puzzle 1020

Problem 76

Conjecture 86

Problem 77

Seiji Tomita

Emmanuel Vantieghem

Emmanuel Vantieghem

Alain Rochelli

Adam Stinchcombe


These pages will be updated every Saturday morning -- Last Modified on: Friday, 22-Jan-2021 15:57:51 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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