A new puzzle every Saturday. Solutions one week later.

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(updated on May 1, 2021)

Puzzle of the week

Puzzle 1092 Consecutive integers of the same parity

Curios by CR in Prime Curios!
(updated on April 30, 2021)

Latest ten news


Date Puzzle about


10 Jun-24-22 Puzzle 1091 Alain Rochelli, Gennady Gusev, Paul Cleary and Giorgos Kalogeropoulos
9 Jun-17-22 Puzzle 1090 Giorgos Kalogeropoulos, Emmanuel Vantieghem and Gennady Gusev
8 Jun-10-22 Puzzle 1089


Puzzle 134

Paul Cleary, Adam Stinchcombe, Giorgos Kalogeropoulos, Jim Howell, Simon Cavegn

Paul Cleary

7 Jun-3-2022 Puzzle 1088

Problem 83

Paul Cleary, Giorgos Kalogeropoulos, Jean-Marc Rebert

Richard Chen

6 May-27-22 Puzzle 1087 Adam Stinchcombe, Fred Schneider, Emmanuel Vantieghem, Seongjae Choi,  Jeff Heleen, Giorgos Kalogeropoulos, Gennady Gisev.
5 May-20-22 Puzzle 1086


Puzzle 197

Giorgio Vecchi, Seongjae Choi, Jeff Heleen, Giorgos Kalogeropoulos, Oscar Volpatti, Emmanuel Vantieghem.

Richard Chen 

4 May-13-22 Puzzle 1085 Giorgio Vecchi
3 May-6-22 Conjecture 93

Puzzle 1079


Simon Cavegn, Alain Rochelli

Giorgio Vecchi

2 Apr-29-22 Puzzle 1084 Giorgos Kalogeropoulos, Oscar Volpatti, Emmanuel Vantieghem.
1 April-22-22 Puzzle 1083 Oscar Volpatti


These pages will be updated every Saturday morning -- Last Modified on: Friday, 24-Jun-2022 15:28:13 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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