Some patches were applied to prevent some of the unwanted behavior that gave some advantage on those layouts. ( not because of the advantage but because the game was not intended to work like that)
Scores will be reset soon just to have a better view of the recent patch updates.
PS: what was your score ? do you have a screenshot of your tactic ? i want to know !!!
I was playing the limited time map today and i got 22 ish.