Greg Strong wrote on Wed, Jun 24, 2020 11:20 PM UTC:
Yes: mpafA
The 'a' means again, so two A steps. The 'mp' means the first square can either be empty, or occupied and passed over. In other words, doesn't matter what's there, so the two steps are glued together. And the 'f' restricts the second step to the same direction as the first (forward, relatively speaking).
It would be nice to be able to use (4,4) in place of an atom to specify an arbitrary step.
Yes: mpafA
The 'a' means again, so two A steps. The 'mp' means the first square can either be empty, or occupied and passed over. In other words, doesn't matter what's there, so the two steps are glued together. And the 'f' restricts the second step to the same direction as the first (forward, relatively speaking).
It would be nice to be able to use (4,4) in place of an atom to specify an arbitrary step.