Paul's puzzle 52 solution - 28 parts


Here’s my solution (it’s the one from the book):

And here’s the link:

Description: This one is a lot like the solution to puzzle 48, except the routing was a little trickier for me as you have to add to the ‘1’ bit and the ‘4’ bit during each cycle.


Rather than doing A-1, B+4, null, and B+1, you can do A-1, B+2, B+2, B+1, and only use 1 crossover: