Ábrahám of Kuvasz-Őr! Kuvasz-Guard! in Hungary shares this photo of his 3-month-old male pup.
"The Kuvasz' head is typically wedge-shaped, in harmony
with his body, pleasing, noble, and it shows a considerable strength.
The Kuvasz can mainly be distinguished from other breeds by his
head shape."
From: fci.be/Nomenclature/Standards/054