Can two groups eating in one or two houses combine for a zimun when some members of each group can see one another?

Does a single waiter (shamash) serving both groups suffice to combine them for a zimun, even without mutual visibility?

2 opinions

Is a prior intention (initially entering with intent to combine) required for two groups to combine for zimun?

4 opinions

Does a public domain (reshut harabim) or private path separating two houses prevent combination for zimun?

3 opinions

Does a public domain prevent combination for zimun at a wedding feast (beit hachupa)?

2 opinions

Can groups eating partly inside a house and partly outside combine for zimun, and if so how?

3 opinions

When two groups combine for zimun, how much of the blessing must both groups hear from the leader?

4 opinions

When two groups combine and want the leader to discharge them entirely from Birkat HaMazon, what must they do?

2 opinions

What is the rule b'dieved if someone did not hear the leader's zimun call but heard the responders answering 'Baruch she'achalnu'?

1 opinions