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He was born on the 8th of April 1936 in Warsaw, died on the 2nd of April 2019 in Warsaw. Habilitated doctor engineer with specialization in technical mechanics and physics of solids. A long-time researcher at the Institute of Fundamental Technological Research of the Polish Academy of Sciences in Warsaw. National master for chess composition … Continue reading ""https://problemista.eu/wp-content/uploads/2021/01/trzesowski-andrzej.jpg