I've made it to the Library on 2F and have found the blue and green book clues, but I can't figure it out. I'm certain it relates to the Blue NoteBook in my inventory and the clue within it, but I'm stumped.

that I'm on the tutorial

I never found any clues for blue or green books apart from inside the notebook, nor did I find anywhere to place it, nor anywhere where there's only blue or greeen books. And I've unlocked everywhere and checked everything, even found the fallen painting inside a nook.

the letters (ie: symbols) bigger when they're different between green and blue.
ie: blue shows crescent/full/etc, and green shows crescent/empty/etc, then the 2nd one should be pulled out.

On entering, you immediately get a cutscene involving a choice. Below the next spoiler block are spoilers for the immediate effects of the second choice ("Have no idea").

Soooo apparently owls are known to eat snakes. Who knew, right?

it can be confusing to figure out where you are just by looking at the main screen - e.g. the hallways just outside the very first room (when you're looking back at the first door) looks very similar to a scene on the very next floor, except there is now a small ladies' room sign looking thing on the door.

So that could get frustrating, if you aren't paying attention to the map so much.

My inventory contains: 6 keys which I've placed in the wall panel and then taken out again, 11 puzzle pieces so I'm missing at least one for the palette puzzle, a wheel that doesn't fit into the statue by the pool, a hammer, a wood key, a bronze coin, and a metal plate that says Ga.

I just want to know what the next small step should be, no solutions. It seems to me that I'm supposed to do the calculation puzzle in the art room since I don't have enough puzzle pieces for the palette puzzle, but there are four groves and I have nothing to put in them. I thought I was supposed to use 5s in the calculation, as the painting has two 5s, but that doesn't work.

So have I missed an item somewhere? What is my next step?

I'm trying to draw the face on the blackboard from the two faces on the other side of the equation. But there are already painted some squares that shouldn't be there. Am I supposed to find an eraser, or how else do I erase them?

I found five colored keys: Orange, Red, Yellow, Blue, Green, as well as a panel to put them in, but I'm missing a sixth key for that panel. I couldn't find any door that the keys open except one door with the orange key.

I also found a 'secret path' that moves a section of hallway after I installed a battery in a button panel, but other than a metal rectangle with "Ga" on it, it was a dead end.

I've noticed near the door that needed the orange key the switches cause sinks in the two bathrooms I can visit turn on and off, but I have no idea how to use that knowledge.

There's a lot of panels I can input numbers into, but I've only found two numbers on the back of the bathroom doors so far and everything is 3 or more for their passwords.

In the very same room where the key panel is, you should look on top of the bookshelf.

For the Art Room calculation puzzle, nested spoilers of increasing bluntness, InvisiClues-style:

Concerning being one piece short for the Art Room palette puzzle:

Though, on path D, I found a Black piece....somewhere. I can't remember specifically where. Still short for pieces for the palette puzzle though even with that simple one. Unless I just leave that one spot empty.

I also happen to find ANOTHER puzzle piece, a white one near the pool area and it allowed me to climb those stairs. I'll have to look again if there's puzzle piece up top.

An eraser is exactly what you need. It's lying in plain sight (rather than behind an arrowless subview or something).

If there doesn't seem to be another puzzle available to solve, I suspect you need to

The only Aquarius sign I've seen is a green one on a sign by a hall door. The only x I've seen is the one that releases a trapdoor into 1F, Class One, Grade One. I don't see any eraser anywhere in plain sight.

On 2F, I have access to Class One: Grade Two, Class Two, Grade Two, Digital Reading Room and East Corner.

From your clues I figure I'm supposed to solve one of the puzzles in one of the five rooms, but I can't match any of the clues with any of the puzzles. In the 1F room there's a five digit lock, and on the blackboard there's a base 4 equation where each number has 5 digits, but the result has 6 digits, so they don't match.

So which puzzle am I supposed to solve next to progress, since it's not the faces on the blackboard?

I haven't actually found any numbered tiles for the calculation puzzle in the art room, I was referring to the two black squares that are on the puzzle itself, and I apparently can't remove them. So it seems that puzzle is to be solved later, and I thus don't need hints for that right now.

However, for the palette puzzle, I actually have the black top piece, along with all three yellow pieces and all three cyan pieces, plus the two topmost magenta pieces and a white middle piece and a gray bottom piece. So I figure I'm missing the bottom magenta piece, but I can't find that anywhere.

I forgot that the trapdoor has the red Aquarius mark. So I've already fallen through the trapdoor into the 1F room as you wanted me to. Still can't figure out the puzzle in that room though.

There is a bifurcation. You, and other posters, may have chosen either branch without realizing it. Reading Line D spoilers therefore runs the risk of spoiling the other branch.

I'm calling the two branches "Century" and "Papyrus", which are cryptic enough not to be hints. If you didn't notice a bifurcation, you can assume you're on Century. If you did, you're probably on Papyrus.

If you want to be sure which branch you're on, the following spoiler-block will tell you how to identify your current branch. This will necessarily give a hint as to what causes the bifurcation but should not outright reveal it.

More detailed spoilers for exactly how to select each branch:

The puzzles are different. Several puzzles on Papyrus are not accessible on Century. I don't yet know if the converse is true, because I'm stuck on Papyrus.

The five-digit lock.

You're on the Century branch.

I'm pretty sure you're on the Century branch too, in which case my answer to ThemePark applies.

If you are on Papyrus, I have to ask you how you got to the Art Room at all, because I'm stuck.

It never occurred to me to do that, I've been adding this whole time, but it took me a little while to try out reading those digits from another direction, as in my game two of them are in the same column and another column has none. But I figured out the password now. So thank you for that big help.

I must confess that I don't see how I can do the calculation puzzle. The four groves hint that I'm supposed to place four items in them, but I have no square items at all, with or without numbers. The two fives also made me think that I had to think of the equation containing four 5s, but that doesn't work either. And finally, because the two squares on the wall are of different sizes, I thought of reading them as 55, and using that in each part of the calculation, but that didn't work either.

Also, for all the above methods, I've tried doing the calculation both left to right, and with multiplication before addition and subtraction, but I still haven't got it.

I found the wall where the Aries sign had been before. Given Tina's talk about the 5 rows and 5 columns, I'm pretty sure it's related to the equation I just used from the blackboard, with its small and big digits. So I tried pressing the corresponding places of the small digits only, the big digits only, and even tried making the plus sign from the blackboard since it turned out not to be an equation. But no luck.

Since I haven't seen anything else in a 5x5 grid, I'm stuck again.

You were on the right track. You tried only the small digits, then only the big digits....

If you're on Papyrus, I really must urge you to choose what zodiac symbols you activate CAREFULLY. If you don't, then you'll just end up making the whole place go boom, like it says on the computer.

I can tell you that you can deactivate one of the symbols at a certain point, but only one. Otherwise, you'll probably be stuck in an unwinnable state, as I was until just now.

the door on 4F

The calculation on the blackboard is 5x5, so is the wall. If I'm supposed to click all 25 bricks, why would there be a reference to another 5x5 grid in what Tina says? Anyway, I did try that and nothing happened.

Since the wall resets when I turn away from it, I'm expecting the wall to move once I click the right bricks, but I don't see how it correlates with the blackboard equation, since I tried either all 20 big digits, all 5 small digits, or all 25 digits with no result. And there are only 25 bricks that can be clicked anyway.

When I found out from your clue that there are two branches from branch D, I went back and made a save game for both. So yes, the calculation problem I'm having is in Century, I'm so far not stuck in Papyrus. But I still don't see how two wall tiles with a number each can be combined with four square groves. Like I said in a previous comment I have tried all combinations I can think of.

How exactly are you clicking the tiles? You should be clicking the tiles the number of times that is indicated by the "addition problem." For instance, if the first line goes like "00312" then you should click the first row of tiles like this: first tile 0 times, second 0 times, third, three times, etc.

So, uh, about that door on floor 4...

That's actually kind of the end goal for that branch...

You can put the palette tiles in the grooves.

I actually thought the clue was in the font size, and not in the digits themselves, so I didn't understand why using them all was the solution.

I knew I was making the game unwinnable, but I kept playing in order to try to get some hints on what I should have done. Spoilers for late Papyrus(?):

I also don't see how it can be done with only one symbol; I was expecting two. Spoiler for symbol objectives:

The lock on the fourth floor has me utterly baffled:

Have I missed a crucial clue for it, possibly in one of the other Lines? I've played them all, although in Line C

You'll notice that the first symbol is locked in. You should look at the number, the letter, and the symbol -- they all have something in common.

Yes, it is related to the 4th floor lock, and your suspicions on where it leads is correct. The 4th Floor Lock is a clue to the combination for this lock.

There's a way to get around the Scorpio symbol, via the Capricorn symbol right next door. It involves that big honking circle in the room.

I didn't get a main ending either. I don't think you get one for that.

I just don't see how the puzzle pieces can be used in the equation puzzle. I don't see how they represent a value. The only way I can see is that it's the number of either ins or outs (in lack of a better word), but there's not enough to get the equation to match what I think it must.

I restarted the game, so now I have 2 black squares, each with a 6 inside, one square is slightly bigger than the other. The way they're positioned makes the background look like a 2, so I figure I'm either supposed to make the equation equal 266 or 66. But I do not see how to turn the puzzle pieces into values. And I can't think of any of the clues I've found that have to do with that puzzle. :(

I thought the reference to puzzle pieces was to some numbered squared pieces that I'd have to find and not to jigsaw puzzle pieces.

There is no main ending for branch C. Since there's three slots, there should be one for A, B and D then.

On the Century branch to be exact. I solved the calculation puzzle and got the metal key. Thing is, I can't find anywhere to use it, and I can't remember where I used it on branch C.

If the answer is in the art puzzle, well since I'm missing the bottom magenta piece and can't remember where I found that in branch C, I'm still stuck.

I know the key of metal specifically opens that one door in the men's changing room, the one you get to by the pool. Though, to get into the men's changing room, I know you need another key, but I don't remember which one...I feel like you are supposed to finish the palette puzzle, but unfortunately, I can't help you very much with where to find specific items.

Well, the key I need to get access to the metal door, is the water key. That key is inside the palette puzzle. The puzzle piece I'm missing, was lying on the floor in one of the classrooms in branch C, a classroom I don't have access to in branch D. So I'm at quite the impasse.

auditorium puzzle on floor 3. I think I get which seats to take the symbols from [for the panel just outside the auditorium], but I can't seem to figure out the proper order.

Dark to light.

It appears to me that you haven't solved the bathroom puzzle. On the 1st Floor, near the fire exit doors, you've probably seen a panel with green buttons. You should solve that.

I wrote down which faucets are activated by which switches and tried deducing how it's solved from the green number on the first switch which in this case is a 6.

I tried looking at the position of the faucets as bits, but for the leftmost button, all three positions have faucets that are running which would give me a 7.

Then I thought all switches turned on 3 faucets, one in each position but that doesn't go for all the switches.

I've also tried adding the numbers of the bathrooms doors that have faucets running for each switch and divide by 2 (since the leftmost switch gives me a total of 12 that way), but some of the totals are odd so that doesn't work.

And finally, since one faucet at most at each position is turned on for each switch, I tried looking at them like numbers, so for the leftmost button which turns on 5L, 4M and 3R, I read it as the number 543. But there's no obvious way to get 6 from that.

You actually only need one bathroom for each switch.

The graticule puzzle clue refers to what should be lit up on the lock.

Horizontally, each square is 60 degrees. Vertically, each square is 15 degrees.

Looking back I realized I hadn't completed Papyrus. I'm pretty sure what my next step is supposed to be, opening the Cancer door with a 5 digit code and two puzzle pieces.

Thing is, I don't see how the puzzle pieces can be made into a code. This time there's no extra numbers, and I haven't seen any code that can be used for that particular door. I have opened all the doors that need the heart key, and taken pictures of anything that stands out, but I'm still stuck there regardless.

You get a code from a different object, though you do need to put the black and gray puzzle pieces in it too. At this point, you've probably seen the Ga plate before, right? You will need that for the code.

Again, the Papyrus route depends on making sure to do things properly and not getting yourself into a situation that will make everything go boom. There are probably even puzzles on the fourth floor you didn't realize were puzzles. I'll probably need a little more information about your progress before being able to help you significantly.

There are 6 possible Routes in the game, denoted as Lines in the map screen. They are labelled A to F. Route F is only available in the Freshman Trial, which serves as a warmup to the main game. The remaining 5 all depend on your actions in the very first room of the normal game. Each route has you start in a different location, which vastly changes what puzzles and events you will encounter. They also change what endings you will be able to access, since several starting points will leave you unable to fulfil the conditions for particular endings.

It's important to note that even after you pick a route, it's still possible to lock yourself into unwinnable situations or to close off possible puzzles or endings. Routes D and E are particularly notable in this regard.

To access Routes A through D:

To access Route E:

Heart Key

Club Key

Spade Key

Diamond Key

Wood Key

Metal Key

Water Key

Earth Key

Fire Key

Moon Key

Sun Key

Orange Key

Red Key

Bronze Coin

Silver Coin

Gold Coin

Main Endings
1.

2.

3.

Branch Endings
1.

2.

3.

4.

5.

Other Endings
1.

2.

3.

4.

5.

Chest Ending B cannot be done on Route D, for reasons that should become apparent while progressing along that path. It can only be done on Routes C and E.

I didn't realize there was another way to get the Gold Coin outside of the A/B routes -- does that mean that it's actually possible to go through the three-coin door? I kind of assumed that it was a red herring. (I also decided that the earth key and the fire key were red herrings, but that might have also just been me not being able to remember the very few times you get to use them.)

I literally just got the heart key and have unlocked all possible doors with it. So I only have access to 1F and 2F. I don't have any object to put the pieces into either.

I have the 6 colour keys, the heart key, a hammer, a bronze coin, a beaker, a battery, a notebook and the two puzzle pieces.

Huhm... you said you'd finished the game... going through the 3-coin door is the very last action you take for Main Ending #2. Though granted, that ending was the last one I did, so if there's a difference in it that only occurs if you've seen the other two endings first, then I wouldn't know of that.

Cancer is not your next objective. In fact, you will not be able to activate Cancer before Libra.

You should have access to the third and fourth floor, because no matter which slot you put the puzzle piece in (the one you get at the beginning of the game), you will see the code that lowers the barrier blocking the stairs.

Whups! Then it's probably just a case of me having poor memory! Route E was actually the first route I finished, stumbling on it by chance, so it's the one that is probably the most foggy in terms of order of actions and what items I picked up and so on.

I just encountered the Control Room, but now seem to be stuck? According to TFMurphy, I can't get the Gold Coin since I solved the monitor puzzle so I'm not sure how I get into the Secret Room in B2. Do I have to go through the B2 Water Key door? I don't have enough color pieces to fill in the "volume" lock; I'm missing at least one bottom piece.

No, you do need to fill in the volume lock. There are a number of puzzle pieces that you might have missed; I believe if you've collected them all you should actually have one extra.

It's been a while, but I'm going to guess that the ones you're missing are from

I was pretty sure I couldn't do the Chemistry puzzle with the three reagents I have available (yellow, blue, water). But the numbers might be different for this line? I'll check.

And yeah, unless the synth puzzle involves the school chime I don't think I've seen anything about it.

The three reagents you start with (#3, Tap Water and Unknown Reagent) are all you need to solve the puzzle, no matter which end reagents it asks for. However, while the first part of the puzzle only requires two beakers, the second part will always require three beakers. All three beakers are available in this route, but just in case, their locations are:

The synth puzzle has nothing to do with the school chime. The ingame hint is annoying to get for it, since it requires you to have finished up elsewhere, then messing with the synth while Penny's in your group. However, from the sounds of it, you don't need to solve it, since you've picked a path that gets you an alternative top puzzle piece. If you're really curious, the ingame hint is simply this:

And it's possible to collect 11 puzzle pieces altogether on this route, with just the Purple bottom piece being unavailable. How many you can get exactly does depend on what route you take into the basement.

I hadn't seen that the number was also displayed behind the painting in the bathroom, after I took the eye. For some reason I had registered the black void as being completely black.

This bathroom sink lock is stumping me. My fixed number is a four and two other buttons give the same result, but brute-forcing the other two digits did nothing.

No, I've got all six bathrooms open. I just don't see the relationship between the numbers and the sinks. :\

Turn on one button at a time. There are numbers on all the doors, and each button will only turn on certain sinks in certain bathrooms. The code comes from the relationship between the bathroom number and the sink that happens to be on. It should also be noted that although each button may turn on multiple sinks in multiple bathrooms, you only really need to see how it affects one bathroom to figure out the code.

As there are two possible ways for any faucet, two bathrooms are needed.

WTF is this Umbrella puzzle? I know I need to solve it to avoid opening the wrong door, but the only umbrella I've ever seen (noticed) was on the "don't do this or you'll die" PC monitor.

You're right on the money with your observation -- the umbrella has to do with the computer. You should also notice something about the computer and several of the pictures you've seen around the building.

(This conversation may end up spoiling you unless you've finished the whole game, not just Line A. Please double-spoiler your reply if so.)

I have done the umbrella puzzle, which just lead me into the neighbour room where there are no items to be had, and since I have no club key I can't open any of the other doors in either room. I have no more doors left to open, and no puzzles I have enough information to solve.

I want to open Libra as that seems to be the next step, but I can't because I then get the explosion ending as I have Taurus activated. But I had to open the Taurus door with the heart key in order to get to the rest of the paintings so I could do the umbrella puzzle.

What am I missing here?

Yes, I've already noticed that the same picture is in both dorm 401 and 403, and that the green ring on one of them signifies a part that's been removed. I also noticed the 5 rings on one of the doors when I turn off the light in one of the two rooms. So I figure they are linked.

The only place I can think of where the 5 circle cross figure can be used is in the Main Hallway on 2F where there are 7 pictures, 5 of which make that cross shape. But since there is only one copy of each picture so far in the game, I don't see what the puzzle is supposed to be.

Just found out by accident that the 5 green circles can be moved. But I'm still not sure what I am supposed to point them at.

I figured it out now. It's a game of Find 5 changes (or whatever it's called in English, Find 5 Fejl in Danish.)

I can tell you that you really did need to activate Tauros. Right now, you need to figure out a way to deactivate it...Try figuring some of the other locks that are around.

I got access to the vending machine, turned Taurus off as MalkyTop told me to, so now I can't return to the starting area. I assume this is on purpose, because the only other way would require me to activate Leo, which then would eventually end in an explosion. So I can't do that.

I used my keys everywhere I could find, and got access to the area that has the playing card lock. But there just doesn't seem to be any hints for that or any of the remaining locks. The only hint I have is that two of the puzzles use letters, numbers and symbols, so I'm expecting that I'm to solve them with information from the other of them. But I will figure that out (hopefully) when I get there.

I also got a lighter now, but I have no idea what I'm supposed to do with that or any of my many other items, some of which have already been used.

So I just can't figure out where I'm supposed to go now, or which puzzle I'm supposed to solve next, or where to find hints for that puzzle. Sigh, my head is gonna explode soon.

If don't have the Moon Key yet, I think that's your next priority.

If you already have it, your next step is activating Cancer.

But I don't have access to the pool. To activate the zodiac sign needed for that (don't remember which one) I need the wood key, and I got that by putting the jigsaw piece in one of the painting in the classroom. But on Papyrus I put it inside the painting in the bathroom instead.

I could've activated it at the vending machine, but according to MalkyTop I should deactivate the Taurus sign which I did.

So I don't see how to activate the zodiac sign needed for gaining access to the pool.

Did you not open the playing card lock?

Oh, I guess you haven't solved the playing card lock.

You should compare the buttons to what the playing cards look like.

I'd also noticed the hole in the hallway very early on but could never do anything with it. Had totally forgotten about it by the time it actually came into play.

Have you checked the showers? Well... obviously you have, since you got the box in the first place. But maybe check them again?