Such an enjoyable search. It took me 3 tries. In the 1st I was 40 off :O :)), then found an 18 off and right after that got it. Really nice path, here (the 153)!
EDIT: Wooow, wow, wow. The 139 surprized me, a lot!
This level has sooo many options, and most of my previous tries were ending in 150 (or even 160) + steps.
Really a nice one!
Insights