It is so frustrating to fall at the final hurdle.
The grid is finished but I can't complete the six items for 40 cells. I have:-
14 ac - 9
34/35 ac - 6
8/21 dn - 9 or10
14 dn - 6
26 dn - 6
1 above 31 dn - 6
That makes 42 or 43 cells!
Where have I gone wrong?