By then he had received from Kirkman 1581 knot projections with 11 crossings and this time Tait felt that he did not have the time to solve the equivalence problem for these.
By pagkatapos niya na natanggap mula sa Kirkman 1581 buhol projections na may 11 crossings at oras na ito Tait madama na siya ay hindi magkaroon ng oras upang lutasin ang pagkapareho suliranin para sa mga ito.