Issue 75 of the German magazine Problem Forum (study section) September 2018.

Also you may find below the article: Stephen Rothwell - Wege zu Schachstudien - Anmerkungen und Gedanken.

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Open the 75 PDF here separately.

Open the Rothwell article here separately.

Stephen Rothwell-Tiefe-und-Schonheit-Die Studien von Richard Reti :