The main rule I'm trying to follow is "as random a tiling as possible". So unless absolutely necessary, no picking certain pieces just because it's easier. The

The main rule I'm trying to follow is "as random a tiling as possible". So unless absolutely necessary, no picking certain pieces just because it's easier. The max area I'm having to tile is fairly small (maybe 100x100 at most) so an actual solution could be fairly easily brute-forced in the last step of the process. I just want to avoid having to backtrack as much as possible since it increases the cost substantially.