Did European knights stop the Mongols in Hungary?

Did European knights force the Mongols to halt their advance in Hungary?

The preferred explanation is succession politics: returning for a new khan's election is judged more important than resistance from European knights.

Mongol experience against Chinese and Central Asian fortifications supports the argument that their armies were adaptable. Alex Clarke disputes the suggestion that European knights were the decisive obstacle. He gives greater weight to the commanders returning for the election of a new khan. This is an explanation offered in a debate over the reasons for withdrawal.