I'm curious why 1... 14-19 which seems strong isn't also a solution:
lidraughts.org/training/56
Thanks to @BumperBalloonCars for explaining; I mis-evaluated the final position (which is better for Black but not convincingly winning as in the main line).
You're welcome @toadofsky!
Here is the explanation for everyone: lidraughts.org/study/33XVbtn5