A goal down on Sunday, Hungary defeated Montenegro 3-1, with Szobszlai scoring twice.
He later said, "I did not turn the game around alone.
"I scored two goals, but I also needed the others. We responded well in the second half.
"We came out and showed our personality and everyone did their job. We are really happy to finish at the top and remain unbeaten.
"Next summer we can go to Germany. I don't have any hopes or expectations. We go over there and do our job.
"We are ready."