<prompt> Translate the following text to EnglishMfalme Prithvi Narayan Shah alikuwa na ugumu wa kushinda Kirtipur, ambayo eneo lake juu ya kilima na pointi mbili za juu alifanya hivyo karibu impregnable.  <response>: King Prithvi Narayan Shah had difficulty conquering Kirtipur, whose site atop a ridge with two high points made it virtually impregnable. 