This article, on the website "The Case Method in Professional Military Education," discusses the question of whether Helmuth von Moltke employed Leavenworth-style "school solutions" when critiquing the tactical problems that he posed to his subordinates on the Great General Staff.
https://casemethodusmc.blogspot.com/1990/06/moltke.htmlThe sources used in this article can be found below.
Max_Jähns_Moltke_Patentlösung.pdfLentz_Applicatory_Method.pdf