Love's Dozen

Designed by Bruce Love 1987, made by Bill Cutler, level 12, 9 holes.
(Maple, 3 inches)

According to Bruno Curfs' page, Love's dozen has 89 solutions ranging from Level 3 to one of the solutions being level 12; this puzzle made by Bill Cutler has a big D drawn on a pair of the ends that forces the level 12 solution.

Further Reading
Curfs' Page, from: