5,040 Cambridge Surprise Maximus

Donald F Morrison (no. 6065)
23456  B  M  W
56432     s  -  |
34265     -  -  |A
64523     -  s  |
35264      A
56342  x
23456      A  
x = 18.

Also true to Yorkshire, Lincolnshire, Swindon, Superlative, Pudsey and Quartzite.
True to all (in course) BDK and (out of course) BEHK2N1a1bcdef.