Selection out of more than 100 studies composed by
Harrie Grondijs
(The Netherlands, 21.2.1946).
Harrie in action in Braunschweig 2012, explaining the Szén-endgame which is explained thoroughly in his book: "The errors of the Calabrois".
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Harrie is also a very productive writer of books about endgame studies:
Harrie signing editions of his EndgameStudy book: "No Rook Unturned".
(All his studies, more exact dates, possible corrections or cooks and exact details about sources can be found in the
Harold van der Heijden database V (31-12-2015) ).