1 seif in the Shulchan Aruch of the Mechaber, with no gloss of the Rema; 3 in the Shulchan Aruch HaRav, under its own numbering (Level 4). A non-Jew lives in a courtyard with two Jews: when does he not prevent their eruv, and what is to be done if he comes, or dies, on Shabbos? The seif answers: when he is away from his house, he does not forbid, and they make the eruv (for the distance, the seif refers to siman 371); if he came on Shabbos, he forbids, and the eruv is void — they then rent from him, and one renounces in favor of the other, and the one who remains alone is permitted; and all the more so if he dies on Shabbos: on the case this “all the more so” refers to, the commentators diverge (Level 2).
LEVEL 01
A pedagogic introduction: Hebrew text of the Mechaber (this seif has no gloss of the Rema) and the Mishnah Berurah, a clear English rendering, key concepts unpacked, practical cases and a summary.
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Deep pilpul: Gemara sources, shittos of the Rishonim and Acharonim, foundational chakiros, classic machlokesim, and practical nafka minah.
📖 StudyLEVEL 03
A master-level synthesis: central axiom, hierarchy of concepts, decision trees, mnemonics, pitfalls to avoid, and a summary chart.
📖 StudyLEVEL 04
The Shulchan Aruch HaRav of the Alter Rebbe on this siman: 3 seifim.
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