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PROBLEM 843-THE PENTAGON JOURNAL
Proposed by Daniel Sitaru-Romania SOLUTION 843 Solution by Marian Ursarescu-Romania
08/16/2019
PROBLEM 845-THE PENTAGON JOURNAL
Proposed by Daniel Sitaru-Romania SOLUTION 845 Solution 1 by Soumava Chakraborty-Kolkata-India, Solution 2 by Soumitra Mandal-Chandar Nagore-India
08/15/2019
PROBLEM 846-THE PENTAGON JOURNAL
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08/14/2019
PROBLEM 848-THE PENTAGON JOURNAL
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08/13/2019
PROBLEM 842-THE PENTAGON JOURNAL
Proposed by Jose Luiz Diaz Barrero-Bercelona-Spain SOLUTION 842 Solution by Marian Ursarescu-Romania
07/07/2019
PROBLEM W17-JOSZEF WILDT
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07/06/2019
PROBLEM W13-JOSZEF WILDT
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07/05/2019
PROBLEM W6-JOSZEF WILDT
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