Used the following
manual method:
For each of the nine points evaluated a (B,D) couple of digits defining the # of beginings and ends accordingly:
3,0 4,1 3,1
3,1 5,0 2,3
1,2 1,3 0,3
Created a short list for the number of appearances of the first and last letters of the 20 words from the list, like:
D...3,2
T...5,3
L...0,1 ETC
First entered the "must" : like T is the only one qualified
as the central point, L - only FITS the right bottom point etc
Then little fill-in of possible candidates and it's done.