The Mavo HaTalmud of Rabbi Shmuel HaNaggid with the Kitzur Klallim and other commentaries. The Mavo is printed in the back of the Vilna Bavli Berachos and can also be found at
http://daf-yomi.com/Data/UploadedFiles/Forums/20897.pdf

This shiur continues the section on questions in the Gemara.

Information on Rabbi Shmuel HaNaggid can be found at:
https://www.chabad.org/library/article_cdo/aid/111854/jewish/Shmuel-Hanagid.htm

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