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".

More about him also at his book website.


Harrie is also a very productive writer of books about endgame studies and more.

You may find all his books at:









 Harrie signing editions of his EndgameStudy book: "No Rook Unturned".




issued 1998.

(All his studies, more exact dates, possible corrections or cooks and exact details about sources can be found in the

Harold van der Heijden (HHdbVI))