5,184 (5,072) Double Norwich Court Bob Major

Robert D S Brown
234567   1  3  4  6
24356             s
63425    s     s  s
23465    s        ss
273456      (a)
263457      s     s
62345       (b)
53264    s     s  s
43256    s     s  s*
473265      (a)
235467   s  s     s
4 part, calling s* in alternate parts.
a=s1.s2.s4
b=s1.s3.s5.s7.s9

Contains 144 combination rollups. For 5072 omit one pair of singles. All calls are singles.