For a puzzle of this sort I would expect to be able to create multiple path segments and connect them later. I would be able to do this with paper and pencil. For instance on the first puzzle you can deduce the way 2 and 3 must be connected without knowing how to connect 1 and 2.
Related? https://www.t3x.org/files/floodfill.pdf
Basic interpreter for the code:
https://www.t3x.org/nmhbasic/index.html
For a puzzle of this sort I would expect to be able to create multiple path segments and connect them later. I would be able to do this with paper and pencil. For instance on the first puzzle you can deduce the way 2 and 3 must be connected without knowing how to connect 1 and 2.