Three, sir!
I don’t think it’s possible to fail in JD, not sure though.
Maybe the games are just following instructions:
Then, shalt thou count to three, no more, no less.
Three shalt be the number thou shalt count, and the number of the counting shall be three.
Four shalt thou not count, nor either count thou two, excepting that thou then proceed to three.
Five is right out.
Once the number three, being the third number, be reached, …
Quell (and its sequel Quell Reflect) give you a two-star rating of sorts. If you complete a board perfectly, you get a gold check. If you complete the board anything less than perfect, you get a silver check. I’m sure there’s other games that break it down between “Found a Solution” and “Found the Perfect Solution” with no scaling for “Sorta Perfect” or “Barely Completed”.