...? Afaik, no.

I have my ways to fall into every possible missing fixed test/trap... That doesn't help...

I'd tend to think this is also an issue about missing fixed tests (problem was with roomGetter with s[0] kind of stuff).

oh... I see what the problem is...

just say "the suspicious room should have its occupant not always in sight". No need for a drawing, just an unambiguous sentence.

Seriously it became boring. I won't even search for it.

[[0,0,0,1,1],[0,0,0,0,0],[1,0,0,1,0],[0,0,3,0,0],[0,1,0,0,0],[0,0,0,0,0],[0,0,0,0,1],[0,1,0,3,0],[0,3,0,0,1],[0,1,0,1,1],[3,0,0,0,0],[0,1,0,0,0],[3,1,0,0,0]]

Observations:
[["6C",1],["9D",3],["12C",2],["2E",1],["3E",1],["8A",1],["12A",1],["4A",3],["11D",2],["2C",2],["5E",3],["13A",1],["5E",2],["1A",0],["4C",2],["1D",1],["4B",2],["10E",1]]

: expected [ '2C', '3A', '4C', '5B', '6D', '10C' ] to deeply equal [ '2C', '3A', '4C', '5B', '6D', '10C', '12C' ]

-------------------------------

[[0,0,0,3,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,1,3,3,0,0,0],[1,0,0,0,2,0,0,0,0,0,0,0,0,0,0],[0,0,1,0,0,1,0,0,0,0,0,0,0,0,0],[0,0,1,0,0,0,0,0,0,0,0,0,0,0,1],[0,3,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,3,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,1,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,3,0,0,3,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]

Observations:
[["6C",1],["6C",0],["6C",1],["6C",0],["6C",1],["6A",1],["6A",0],["6A",1],["6A",0],["6A",1],["5B",1],["5B",0],["5B",1],["5B",0],["10I",1],["5B",1],["7B",2],["7B",0],["8I",3],["7B",1],["14E",1],["9D",1],["2C",2],["10I",2],["6G",1],["14O",3],["7B",0],["9G",1],["1G",1],["7B",1],["6B",2]]

: expected [ '3E', '3H', '5A', '5C', '6B', '8D', '9B', '12E', '13K', '13L', '14D' ] to deeply equal [ '2C', '3E', '3H', '5A', '5C', '6B', '8D', '9B', '12E', '13K', '13L', '14D' ]

-------------------------------

Block:
[[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,1,0,1,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,1,0],[0,0,0,0,1,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,1,1,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,1,0,0,0,1,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,3],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,1,0,0,0,0,0],[0,0,0,0,0,0,0,0,0,0,0,1,3,0],[0,0,0,0,0,0,0,0,0,0,0,0,0,0]]

Observations:
[["17N",1],["11F",2],["16F",2],["11J",3],["8G",2],["14A",1],["11E",3],["9K",1],["2C",2]]

: expected [ '2C', '2D', '2M', '6N', '8G' ] to deeply equal [ '2C', '2M', '6N', '8G', '11F', '16F' ]

-------------------------------

Block:
[[0,0,0,0,1,0,0,0,0,0,0,3,1,1,1],[0,1,0,0,1,0,0,1,0,0,1,0,0,0,0],[1,3,0,0,2,3,0,0,1,3,0,0,0,0,0],[0,0,1,0,0,0,0,2,0,0,0,0,0,3,0],[0,0,0,0,0,0,0,0,0,0,3,0,0,0,0],[0,1,0,0,0,0,0,1,2,0,0,0,0,0,0],[0,0,0,0,0,0,0,0,1,0,0,0,1,0,0],[0,0,0,0,0,3,0,0,3,0,0,0,0,0,0],[0,0,1,0,2,3,1,3,0,0,3,0,0,1,0],[0,0,0,3,0,1,0,0,1,0,0,0,0,0,0],[3,0,0,0,0,0,0,0,0,3,0,0,0,0,0],[0,0,1,0,0,3,0,0,1,0,0,0,1,3,0],[1,0,0,0,0,3,0,0,0,0,0,1,0,1,0],[3,0,1,0,1,0,0,3,0,3,0,1,0,0,0]]

Observations:
[["6J",3],["13J",1],["5E",3],["14M",0],["10O",1],["9G",1],["2F",0],["7N",2],["10O",1],["7C",3],["4B",1],["3G",3],["7H",1],["6C",2],["12A",0],["5N",1],["6C",3],["3G",1],["10B",2],["7B",2],["12A",2],["1M",2],["2M",3],["2D",2],["3D",1],["9O",1],["1J",2],["12F",0],["2K",2],["14G",1],["9K",3],["4L",2],["5I",2],["12D",2],["4O",1],["3C",2],["6M",1],["9M",2]]

: expected [ '1A', '1H', '1M', '2D', '2K', '3F', '4A', '4J', '4L', '5D', '6E', '6F', '6H', '6K', '7B', '7F', '7I', '7N', '9I', '9M', '10K', '11H', '11N', '12B', '12E', '12F', '12J', '14L' ] to deeply equal [ '1A', '1H', '1M', '2D', '2K', '3F', '3N', '4A', '4J', '4L', '5D', '6E', '6F', '6H', '6K', '7B', '7F', '7I', '7N', '9I', '9M', '10B', '10K', '11H', '11N', '12B', '12D', '12E', '12J', '14L' ]

And I even got a timeout on one batch (I suspect it's the generatorbut maybe it's a server artifact, dunno)

missing fixed test: somehting leading to this: [ '12B', '13B', '14C', '7C' ] to deeply equal [ '7C', '12B', '13B', '14C' ]

so the wording is definitely wrong not clear enough:

while the occupant of the apartment in question wasn't consistently in sight that night.

WHICH ONE? The last appartment talked about is the neighbouring one. so I expected THIS ONE to have someone always in sight. But looks like it's the SUSPUCIOUS appartment that is actually referred to, here...?

edit: and even with that, I still get 2 failed tests. Please, get your specs straight... -> missing fixed test

there is still a problem with 4E: this one is always in sight, switching only between 3 and 2. It's never 0. Which still discards the neighbouring room as suspicious.

visible in sight ?

I think it should be clear that I mentioned "At least two neighbouring apartments", so the occupant is the one with neighbouring apartments.

not necessarily. You should also clarify this, imo.

Then the definition of "visible" is totally flawed... Considering the context, "occupant visible" means "occupant present". Otherwise, nobody could get the information with state "no light + person present".

Block:
[[0,0,0,0,3],[0,3,0,0,3],[0,0,1,0,0],[0,0,0,0,0]]

Observations:
[["4E",2],["4E",3],["4E",2],["4E",3],["4E",2],["4C",1],["4C",0],["4C",1],["4C",0],["4C",1],["3D",1],["3D",0],["3D",1],["1B",2],["1D",3],["3A",1]]

: expected [ '1B', '3B', '3E' ] to deeply equal [ '1B', '3B', '3E', '4D' ]

Why 4D?

• 4C matches (toggles 5x and not always visible/present) => +1
• 4E is always visible => +0
• 3D toggles only 3 times => +0

=> doesn't match the third rule, as far as I can see, and none of the others match either.

EDIT:

while the occupant wasn't consistently visible through the window that night

the occupant of which one of the rooms?

you obviously know what you're talking about, yeah.

Just look at the rank suggestions, it should never have been approved at 7 kyu.
And any 8 kyu ranking is outright trolling, so the balance is totally obvious.