Nice short puzzle, with many two offs, IMO. The 2 offs, here, HUH! :))) Not exactly easy to see how to get the 50.
I had all sorts of path variations, before finding it. Enjoyed this one!
******************************************************************************************* Gosh, it took me very long to see **********************. :D For some reason the 64 was very hard to see, for me. Was stuck at 72, for a few days. I had three 2 offs, before solving.
This is a great puzzle, IMO.