>>717207986
Can you tell me which space I can fill in next using only the rule stated (+ the requirement to mark each cell wall/empty) and give your precise reasoning? Note that you cannot use arguments like
>[space] needs to be empty because it's in a 0 row/column
because that's not the rule or
>[space] needs to be empty/a wall because if not then it breaks the rule
because of that icky "if".