Close, but not quite. PC stands for paper cassette, e.g. the tray you load the paper into. You're right about it referring to the paper size, though. PC LOAD LETTER just means "Put more letter-size paper into the tray."
The official answer is that you cannot promote a pawn to a king, so this situation would never arise. However, this is Anarchy Chess, so let's set that aside.
If this situation did happen, and it is Black's turn, it is not checkmate, because Black's bishop takes the queen. It could not be White's turn, because there is no way to arrive at this board state on Black's turn without one or both kings being in check at the beginning of the turn, and so Black's move would have needed to remove their king from check.
Period flow can happen without warning, and even if there is a warning, it's not usually something that girls are comfortable enough with to want to announce the reason in front of a classroom.
Most of what you read online is incorrect, then, or at least misleading. Willpower isn't actually a stat in D&D. When your character asserts their will, they succeed at doing so, full stop. The save is for whether or not the character has an opportunity to do so.
What you have instead are Intelligence, Wisdom, and Charisma.
Intelligence saves are how much your character knows. An example here is illusion magic. Illusions are imperfect, and better understanding of nuance lets a character see an illusion as false, and then exert their will to disregard it.
Wisdom saves are about how much you can perceive and intuit. When someone attempts to control you, it's subtle, and the saving throw is about noticing that something is wrong. Once you notice it, your character exerts their will and shrugs it off.
Charisma saves are about your force of personality and sense of identity. When someone attempts to possess your body, they are attempting to change who you are, and is directly opposed by how strongly you believe in yourself, and how strongly you believe in who you are. Once you resist the attempt, you then exert your will and drive the spirit out.
You would simply say "The spellcasting ability modifier for this spell is Wisdom."
Wisdom is the stat that represents your willpower, your experience, and your ability to perceive the world around you. If something attacks your mind, it is most often resisted with Wisdom for this reason.
Realistically, it probably shouldn't be a spell, and it definitely shouldn't be this complicated. Spells used to have this level of granularity in earlier editions, and 5e specifically moved away from that for clarity and speed of play.
My recommendation is to decide if the person this item was created for (not necessarily the PC using it) is supposed to die or not when using it. If they are, then the item just kills them. If not, they fall unconscious at 0 HP, then suffer one failed death save as normal when the item detonates. Don't mess about with charging it with death saves or exhaustion levels, just have it do some damage.
One thing to mention: The saving throw type should match the means used to resist the effects.
Charisma represents your force of personality, your sense of identity, and your ability to interact with the world around you. This effect targets none of those things, nor can it be reasonably assumed to be counteracted by any of those things. Thus, this should not be a Charisma save.
Examples of effects with Charisma saves are possession (resisted by your own ability to be in control of yourself), Zone of Truth (resisted by your ability to interact with others), and forced planar travel (This makes sense with a longer explanation, but can't really be summarized.)
This should be resisted with Constitution. It withers the bodies of those trapped within it, so naturally should be resisted by how healthy that creature is to begin with. Dexterity is an option, too, but that's typically represented by effects that can be dodged with a split-second reaction without leaving your space.
Unfortunately, voting democratically on an issue, however invalid, doesn't make one an insurrectionist. An insurrection is a violent uprising, and a democratic vote is about as far away from that as you can get.
I started cradling him when he was just old enough to be adopted. Every time we crossed paths, I would say "Scoop!", scoop him up with a hand under his chest, roll him over backwards with my other hand on his butt, and lay him down on my arm like that. Then I'd scratch his tummy and give him kisses, then let him go after a little bit.
For SSD's, it's 100% a logical table, because data is stored all over the place for load balancing purposes, so it already uses a logical table to keep track of what each block is for at any given point in time.
For HDD's, historically they were physically separated, and they mostly are still, but there's still a logical table, and there's no reason the logical table can't say "Blocks 0 through 1234 and 2000 are part of partition 1" if you have something somewhere else that you want on that partition.
I think the idea comes from "HDD slow," as he was impressed with the speed it was happening at, especially if you think of it as requiring data to be moved around on the disk. It's not really intuitive to think of it as just a table on the disk somewhere that says which regions belong to which partition, and having those regions be anywhere on the disk.
The best part is, while researching that rupture point, I found an academic paper comparing the relative squishiness of various animal eyeballs. Science!
Well, the human eye ruptures at around 50 PSI. I'll spare you the math, but if you can throw it at a wall so it hits over 45 mph, it'll splat. Otherwise, it'll bounce.
I think it's mostly an unintended benefit. These scams are usually run out of countries with English as a second language, so you get some grammatical errors in translation. It does increase the conversion rate, though, so they don't bother spending extra money getting a native English speaker to copy edit.
I just make sure there are some consequences, even if it's something like "There are other things that live in this dungeon you're camping in, and they just found the pile of bodies you've left strewn about and have raised the alarm."
Close, but not quite. PC stands for paper cassette, e.g. the tray you load the paper into. You're right about it referring to the paper size, though. PC LOAD LETTER just means "Put more letter-size paper into the tray."