{{explanation}}
 2 chords - 2nd chord 3s & 4s cross to opp sides

1-8
: All set. 1s+2s also 3s+4s dance 3/4 double Figs 8 (1s & 4s cast, 2s & 3s
  cross up/down). All finish on sides facing in. 2 (1) 4 (3)
9-16
: 1s+4s dance 1/2 RH across, turn corner LH (4s+2s, 1s+3s). 4s+1s dance
  1/2 RH across, turn corner LH (1s+2s, 4s+3s). 1s & 4s take prom hold
  with partner & face
17-18
: 1s+4s set Advancing, pass LSh to face “corners” on diagonal (4s+2M at
  top, 1s+3M at bottom)
19-24
: RSh promenade reels of 3 across (4s+2s, 1s+3s). End 4s facing 1s in
  centre (4s face down 1s face up)
25-32
: 4s+1s dance RH across, dance out of end (4s at top, 1s at bottom) cross
  & cast to 2nd/3rd place. End 2 4 (1) (3)