{{explanation}}
Square set, with 4 “single” dancers in the middle, each facing “his” couple.

1–
: All C set to Singles | RHA with single | singles ½ LHA in middle to face opposite couple
9–
: Repeat, to original places, but couples a finish a bit apart
17–
: All Singles Rsh Reel3{6} with their Couple | couple ¾ LH turn to promhold facing facing cclw **while**{2} singles cast out and L round their couple to places.
25–
: All C promenade round once cclw, finish making an arch NHJ with corner.
33–48
: All singles dance out through gap opposite, cast R, and in under the arch into middle, swiveling R to face next gap clw ; repeat 3 times to places facing in.
49–
: 1W+ 2 singles+2M  & 3W+ 2 singles+4M make two facing rows NHJ (=1st diagonal) **while**{8} 1M + 2W following and 3M + 4W following dance round the line end, in through the channel and cast R to the other pair's place ; when meeting in the channel give RH, LH, RH. At the end rearrange the "channel" along the other diagonal,
57–
: The other two pairs dance likewise, 1W & 3W leading.  All couples are now on the opposite side.
65–
: Parallel Lsh ½Reel4 on the "first" diagonal lines, starting with the facing singles passing Lsh ; the singles chase ½ cclw 2 places **while**{4} couples turn RH once.
73–
: Parallel Lsh ½Reel4 on the "second" diagonal, as before (all are in own places again) ; each C with own "single" Circle3 L, opening out ("single" behind) into
81–
: All circle 12H L and back.