Notation

For one, the convention to name the stops is

N,d,s

N - Node number (0,...,9) with (0,...,4) outside and (5,...,9) inside nodes; colour is c(N) with 0=white in meat space we call them A,...,E and a,...,e

d - direction (-2,-1,+1,+2) leading to node of colour c(N+d) in meat space we juts write down A...e where we're moving towards

s - number of stops in that direction this.

More to come

Thank you