L. Prokes
Sach, 1942

White: Kh5, Rf7, Rh7
Black: Ke8, Qg8

Win

1 Re7+ Kd8 2 Rd7+ Kc8 3 Rc7+ Kb8 4 Rb7+ Ka8 5 Ra7+ Kb8 6
Rhb7+ Kc8 7 Ra8+ and wins.
