Fifteen
played
I tried this last weekend on my Garmin 450, but it was cold and I didn't realize it was a puzzle too. Logged a failure then, so tried again tonight in a neighborhood park and learned that there are different types of WIGs. Solved the puzzle and played the grid for a successful final coordinates in Loveland, CO. Will have to check out some of the other states when I can.
Thanks for a fun one!