5,042 Cambridge Surprise Maximus

Donald F Morrison (no. 3758)
23456  M   W   H
45326      s   -
32546      s  [-
45236      s   s
23546      s   -
54326      s]  -
24365  s   s   ss
64325      s
32456  s   s   -
Round at the treble's backstroke snap six leads later.

If preferred the bracketed calls may be replaced by sH,W,sH,sW,sH,W.