This well known Point Ground Challenge was worked by Pauline Hayton not once, but twice
The first Mat
The second Mat

Pauline says:-
Miss Channer's Mat - two versions. I used Brok 100/3 for these and changed the pattern slightly. I made the first one in 2003, but was not happy with the way the net looked so in 2005 I made the pattern again and I am much happier with the result. When I repeated the mat it took me 2 months - it was my relaxation during the summer months when there were no classes.
Madge says :- this pattern can be borrowed from the library no. 1293 if you want to try to do it quicker!! Please ask me to bring this along as I do not normally include it with the library books.