If an eruv was established for a year (annual eruv) and the shared opening was blocked on a weekday — may the eruv be relied upon when the opening is later reopened on Shabbat?

If two courtyards established an eruv through a shared doorway or window and it was blocked on Shabbat, may they still carry between the courtyards?

3 opinions across 3 eras

If a person intentionally (b'mazid) blocked the shared opening between two eruv-joined courtyards, and then it was reopened — is the eruv still valid?

5 opinions

If a wall dividing two courtyards that each made their own separate eruv was breached on Shabbat, may residents continue to carry within their own courtyard?

2 opinions

If a courtyard is breached on Shabbat into the public domain (reshut harabim) or a carmelit, may residents carry within the courtyard?

3 opinions

If a small courtyard was breached before Shabbat in its entirety (b'milu'ah) into a large courtyard, with the breach not exceeding 10 amot, may the large courtyard carry items that originated indoors?

2 opinions

When is the small courtyard (breached into a large courtyard) permitted to carry its own indoor items into its space?

3 opinions

If a small roof (gag katan) was breached before Shabbat in its entirety into a large roof, may the large roof carry items that began Shabbat indoors (below in the house)?

4 opinions