Finlip#1imgur.com/a/VBqlCuOIsn't 14x23 also possible?Well, the same captcha appeared here again and both solutions are indeed accepted.
RoepStoep#2Both solutions are good in this case, as they are equal length, 13x24 would be wrong though
Finlip#3There are no inboard coordinates in captcha though. Did I get the numbers right. So the captcha doesn't have a unique solution.