Ten Tests of Avraham Avinu.  The shiur focuses on how the tests are enumerated and is relatively advanced.  Sources include Pirkie D'Rabi Eliezer and Rambam and more.  This shiur was given in 2005.  Another shiur on the ten tests (motivated beginner to intermediate level) from 2006 which focuses on "Why Hashem Tests Us".

MP3

1 hour and 13 minutes -  33.5 MB