1–
: 1c set adv past 2c | 1c+3c turn BH ; all &frac12; LSh Reels3 on sides (3,1,2)
9–
: All S&Link3 but 3M & 2W turn LH to centre facing corners they just left ; 1c lead path of snake pass to end in 1st corner pos (M side: 1W,3M,2M; W side: 3W,2W,1M)
17–
: Repeat 9–16 from new places (M side: 2W,1W,2M; W side: 3W,1M,3M)
25–
: Modified bourrel: 2W+1M & 1W+3M set advancing | full turn BH **while{4}** 3W & 2M chase &frac12; way cclw ; all set to P up/dn centre | turn BH to sides (2,1,3)