05/06/2019
PROBLEM 835-THE PENTAGON JOURNAL
Proposed by D.M.Batinetu-Giurgiu, Neculai Stanciu-Romania PROBLEM 835 Solution by Marian Ursarescu-Romania
05/06/2019
PROBLEM 834-THE PENTAGON JOURNAL
Proposed by D.M.Batinetu-Giurgiu, Neculai Stanciu-Romania PROBLEM 834 Solution by Marian Ursarescu-Romania
05/06/2019
PROBLEM 830-THE PENTAGON JOURNAL
Proposed by Daniel Sitaru-Romania PROBLEM 830 Solution 1 by Jalil Hajimir-Canada, Solution 2 by Mokhtar Khassani-Mostaganem-Algerie, Solution 3 by Remus…
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05/05/2019
PROBLEM 833-THE PENTAGON JOURNAL
Proposed by Jose Luiz Diaz Barrero-Barcelona-Spain PROBLEM 833 Solution 1 by Marian Ursarescu-Romania, Solution 2 by Michael Sterghiou-Greece, Solution 3…
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04/13/2019
PROBLEM 362-LA GACETA DE LA RSME
Proposed by Cornel Ioan Valean-Romania PROBLEM 362 Solution by Kartick Chandra Betal-India
02/26/2019
PROBLEMS 4301-4400 CRUX MATHEMATICORUM
100 solved problems PROBLEMS 4301-4400 CRUX-compressed
02/26/2019
PROBLEMS 4201-4300 CRUX MATHEMATICORUM
100 solved problems PROBLEMS 4201-4300 CRUX-compressed SOLUTIONS 4201-4300 CRUX-compressed