1–
: 1c set | cast off (2c up) ; ½ Fig8 R (2,1x,3)
9–
: 1c+cnrs to the R ½ diag. R&L ; S&Link3 into lines across (all face P)
17–
: 1c+cnrs to the L ½ diag. R&L ; S&Link3 (2,1,3)
25–
: Circle6 and back