GAON: “Thanks for the link! BTW I had a look at the Toldos Shmuel, in Ois Yud in regards to Shisim Ribo b’Chol Yom, he brings the Avnei Nezer b’shem haGoan m’Kutno’ that the Shishim Ribo does not have to be “Bokin” it is enough that is open to Shishim Ribo etc.
Actually, the above in his responsa Yeshuos Malko says the exact opposite.
It is the da’as Hashoel only, who happened to have written to all Poskim about his concern and no one agreed with him. He is mentioned in Shu”T Marsham, Divrei Chaim of Sanz and Bais Yitzchom of Levov. They all disagreed with him.”
I believe that the Avnei Nezer did not see the Yeshuos Malko inside. It was only a shmuah in the name of Rav Yeshua M’Kutno.
No one agreed with this shoel’s arguments, which is proof that we don’t accept the Mishkenos Yaakov’s understanding of the Ritva in Rashi (and other Rishonim).