Hello. as far as I understand, you know the approximate location of the death of my grandfather-Budapest. On the Hungarian website they did not answer as there are a lot of photos with burials. Here you need to either find a more accurate place of death and burial, or view all the burial places. Of which there are so many that this is not an easy job. Moreover, there are a lot of nameless, unknown soldiers. But if you compare the documents, you can very accurately determine this place.
So in the documents from the OBD Memorial the following is known:
Record Number 4053597
Surname Serebryakov
Name Vasily
Patronymic Romanovich
Date of birth __.__. 1906
Place of birth Penza region., Vadinsky district, s. Selected
Date and place of conscription Vadinsky RVK, Penza region, Vadinsky district
Last duty station 180 sd
Military rank Red Army
Reason for retirement killed
Date of disposal 01/01/1945
Name of TsAMO information source
Source Information Fund Number 58
Information source number inventory number 18003
Information Source Case Number 100
[DLMURL="https://obd-memorial.ru/Image2/filterimage?path=VS/002/058-0018003-0100/00000036.jpg&id=4053534&id=4053534&id1=d26f34c87812b49d3f8b72d5fbdfb1ffm"] https://obd-me / Image2 / filterima ... d5fbdfb1ff [/ DLMURL]
in column 10 (northern outskirts of Budapest, Hungary)
If you look at this document from the first sheet, a more accurate description is given there: NORTH-WEST outskirts of the village of OBUDA, a suburb of Budapest, Hungary. Now, if you “dance” from these data, you can already use the search on the Internet to find the alleged more accurate burial. A quick glance, I did not find the name of your grandfather. But you have to look for a very very long and painstakingly.
And the first step is to hammer into the search in the OBD Memorial "Obuda" there is a huge list of burials.
Additionally, on the website of Hungary, where you have already applied, you can supplement your request, then, it is quite possible your request will be executed faster.
Such searches will require real research. Not just browsing in HBS, but learning about matches. (according to the date of disposal, according to the place of death and according to the list from the report of irretrievable losses)