1–4
: 1c set | 1c+2c change RH on sides{1} then 1c+3c change LH on sides **while{1}** 2c cross LH (2x,3,1)
5–8
: 2c+3c change RH on sides **while{2}** 1c cross RH | 3c cross LH **while{2}** 2c+1c change LH on sides (3x,1x,2x)
9–12
: All set | 1c set adv & turn to face opp side, BtoB with P **while{2}** 3c & 2c set again
13–16
: 1M/1W cast RSh round 4cnr[pos] to centre line in 1pl/3pl **while{4}** 3c & 2c dance in, pivot & curve out to next corner clw
17-
: Repeat [9–16] from new places, 1c casting round 1cnr[pos] to (2,1,3)
25-
: All chase tightly nearly once round ; all turn P RH (2,1,3)