42Genius42 Slowsolve (2 days!) Christ on a bike! And far too many instructions atm... did have something with 42 instructions but unfortunately, that just made chiral inputs of the 3 atoms rather than alternating the bonds and so sadly only worked for 1 test case! Totally outdone by what Team42 (mostly Biggie tbf) eventually ended up with (which I an optimistically predicting a top 3...) - I challenged Biggie to try to get it to equal or lower than what I got for a vaguely similar in some aspects (Instructions) puzzle last year, Blazing Cathode, where I got 29 :-)