Idea is simple.
What 2hu related things can be identified as the most, least, smallest, largest, first, last, etc... of a certain category?
It doesn't have to be canon. It doesn't have to be part of fiction. It can be anything 2hu related. Just has to be factual to a degree.
Examples being stuff like the first Touhou doujin album, semi-well known to be Stardust Reverie by Popkorn&HaraKara, on Comiket 64, 2003.
Cirno is the character with the largest amount of fanart, at least on Pixiv, with 124,000+ works, beating even Reimu herself by a relatively small margin.
A player named Rurolulu holds the highest amount of world records for Touhou, with 70... and it's all in one game, PoFV.
Yuuhei Satellite, as far as my info goes, has the most amount of Albums and Singles combined released for Touhou, with 51 albums and 34 singles. Not counting collab work. Note that I wouldn't be surprised if people like Maritumix or Someone45356 has made more arranges individually in total, but not albums.
The person that has created the most amount of Touhou animations is most likely the youtuber Ninoseyasunori, now numbering at 142, and counting, as he's still making more.
The character with the most amount of spellcards is Reimu, with 89 spellcards in total.
An obvious one would be the Touhou video with the most views, that being Bad Apple, currently at 108 million views.

Anyone that answers a category cleanly wins over 9000 internetz

I'll be posting some more I know later.

Some other example questions (You) could answer:
Canon (Lore):
- Character that has appeared the most in a manga (probably Reimu, but need a count)
- Character that has appeared the least in a manga/game (separately if you want). Bonus points if its made relative to the amount of time the character has been shown since she's been introduced, as some newhu would be the most obvious answer here.
- The character that has canonically lost the most
- The character that has canonically won the most (probably Reimu?)
- Character with most relations to different characters (most likely Okina)
- Character duo that has fought each other the most on-screen

Canon Game:
- The most broken, non-bugged shottype in any game (counting bugged is probably MarisaB in MoF?)
- Longest Touhou game if everything is timed out, on Lunatic (Phantasmagoria games obviously won't count) (can separate mainline and decimal games)
- Touhou singular boss appearance with the most spellcards on Lunatic (basically only counting one appearance. Not adding up, say, Yuyuko's Spellcards on PCB + TD)
- The spellcard that spews the most amount of bullets in the series, if timed out. Yes, it's nigh impossible to answer, but it is an interesting question. My best guess is Fitful Nightmare, from Remilia in ISB.
- Longest Touhou Timeout Spellcard (this one I'm almost certain is Profound Danmaku Barrier ~Phantasm, Foam, and Shadow~, from PCB via Yukari, but need confirmation)

Doujinshi:
- Circle/Artist that has made the most doujins. Separate r18 and sfw works if you want.
- Character that is part of the most amount of doujins (likely impossible to properly know as most doujins don't get scanned)
- Character that is part of the most 18+ doujins (same problem with above)
- Oldest known doujinshi
- Once (or still) 2hu doujinshi Author that has had success the most in the manga industry (probably Bkub?)

>>49689646
Fangames:
- Oldest known fangame
- Most expensive-to-produce fangame (maybe Koumajou Densetsu 2, as it bankrupt the circle)
- Longest running fangame series
- Longest to beat Touhou fangame OR Touhou fangame with the most content (this one has a few contenders, like Touhou PDP even without the mods, Touhou Labyrinth 2, Gensou Shoujo Taisen Yume, etc)
- Non-Touhou game with the most Touhou mods
- Hardest Touhou fangame (hard to quantify)

Music:
- Person that has arranged or composed the most amount of tracks. I say person not circle, as someone could be part of multiple circles.
- Oldest known Touhou arrange (there are some ideas, like this https://web.archive.org/web/20011117221337/http://www16.big.or.jp/~zun/html/music.html, made in 2001)
- The longest Touhou arrange. I won't be surprised if it's the Touhou Opera piece made by Operadots that I archived years ago, being an hour and 20 minutes in length. Some orchestra could be construed as longer probably, but I don't know if they could count as one arrange.
- Music Circle that has had the most success in the music industry (maybe Unlucky Morpheus or Kishida Kyoudan. Love that both of them still make Touhou music once in a while, even after their success)
- Most and least arranged Touhou music piece

Fanart:
- Character with the most amount of fanart relative to low amount of r18 fanart. I think there's a graph about this (alongside the opposite), but I don't have it
- I'm afraid to even ask this, but character with the most amount of fanart... in relation to a specific fetish (ex. maybe Reimu has the most fanart related to Armpit fetish). Separate each fetish, of course.
- Character that has the most variation of Gyates
- Character drawn the most as a Yukkuri
- Character with the most amount of fanart that has high amount of bookmarks (lets go with at least 5000+) on Pixiv
- Series that has the most crossover fanart with Touhou
- Character with the least amount of fanart

Fan animation:
- Touhou fan anime that has sold the most. Probably impossible to neatly get the numbers on this one, but there might be some hints scattered around places.
- Touhou character... that has the most animated porn. Bonus points if we're not counting MMD dance videos.
- Longest Touhou animation. Probably a MMD movie somewhere.
- Video parodied the most by Touhou animation

Misc:
- The most popular confirmed Touhou fan, could be a celebrity or something
- Oldest known post on the internet about Touhou, good luck finding this one
- The most sold Touhou merch. If it's a fumo, the most sold Touhou fumo.
- Youtuber that has the most videos posted about Touhou. Quality doesn't matter, as long as it's Touhou related.
- Largest known Touhou event, that's NOT a convention. Something like a concert, maybe.

Again, could be about any superlative question, don't have to be stuck to these questions, but some examples to get the juices flowing.

The oldest known Touhou fan animation is this https://www.nicovideo.jp/watch/sm1483, made by Shiobi for Touhou Saimoe to support Yuyuko for the second Touhou Saimoe, in 2005. Yuyuko did not win, sadly.
The most popular meme is Touhou Yukkuri. So popular it has become that it has transcended the series itself, spawning as its own genre, with even random japanese grandmas and preschoolers knowing what it is, even if just by osmosis. You can find thousands of videos made with Yukkuris daily on Youtube, just search "ゆっくり".
Not counting endings, Reimu has technically appeared in more games than Marisa, with her appearing HRtP and Gold Rush but Reimu only didn't appear in GFW... but Gold Rush is most likely non-canon, so actually, Reimu and Marisa are tied in game appearances. Counting endings however, yes, Reimu does appear more than Marisa, as Reimu appears as a cameo in GFW.
Marisa, of course, is the icon of every mainline Touhou windows game, making her the character used most as the .exe icon. Surprisingly, she also appears as an icon for Shoot the Bullet, for some reason.
Marisa and Reimu are tied as the character with the most themes, both with eight.

More to come when I feel like posting more.

>>49689649
>- Non-Touhou game with the most Touhou mods
For 2D games, Terraria. For 3D games, GTA: San Andreas

I don't know anything, but I will be watching this thread to see what I learn! Would be nice to see more links to the works mentioned, too...

>>49689769
>touhou 9 imperishable night
say what now

>>49689924
You didn't know? There was a different Touhou 8, but ZUN got drunk, lost the source code, and then just decided to retcon it and demote Imperishable Night to TH8.

>>49689634 (OP)
2hu who has the highest number of sexual partners is Hatate (16384 men) and lowest is Iku (0).

The hardest pattern in Touhou game history is Gengetsu's Final Timeout Phase, aptly named "Gengetsu Rape Time", in Lotus Land Story. So difficult the pattern is in fact that no one has ever beat it without using tools. Here's everyone's favorite LoLK hater Jaimers going with a 15FPS hack.
https://www.youtube.com/watch?v=v0FkEZXVqjk
The most popular OST in the 2hu is UN Owen was Her. It has won 1st 10 times since the inception of the Popularity Poll. Second place, not as far behind as some might think, is Septette for the Dead Princess, winning 1st 7 times. The last time UN Owen has lost 1st place was 2019.
Honorable Mention, the track that has won 1st the least in the popularity poll is Phantom Ensemble, winning once back in 2003. It and Yuyuko's Theme (won twice) are the only tracks that have won the poll that are not the Scarlet Sisters' themes.
More well known, the most popular character is Reimu, winning 1st 11 times in the popularity poll in total. 2nd is Marisa, pretty far behind with 4 wins.

Unrelated but I like the word superlative, I will be using that now

strongest touhou: cirno.

>>49690543
There are dozens of touhous sharing that zero, but anyway we know the most isTewi who as a rabbit has no taboo against incest and appears in the family tree of every earth rabbit, many times in fact.

>>49689649
>- Character with the least amount of fanart
I feel like thats her if you only count the bishoujos

>>49689649
>- Oldest known Touhou arrange (there are some ideas, like this https://web.archive.org/web/20011117221337/http://www16.big.or.jp/~zun/html/music.html, made in 2001)
Should ZUN's own stuff count? If not, it's probably the album Prizm Light Fragments, and early stuff by Colorful Cube in general, at least that's the common belief

>>49693426
Despite the post you replied to being a shitpost, there is actually probably a proper answer to be found.
Who has the most amount of confirmed children out of every Touhou?
Tewi is a decent answer, but as an old as fuck rabbit, she could just be related to every earth rabbit because she's just one of the oldest, basically being the omega great grandma of every rabbit. She could have just birthed once and her lineage just descended from that litter.
We do know there's some canon 2hus that has children even without resorting to myth textbooks, like the Watatsukis and Suwako.

Which Touhou is the gayest?

>>49693895
Miko was so gay that he came back as a girl, so there's that

>>49693895
Mary & Renko

>>49693923
Nothing's straighter than being genderbent into a woman simply so you can make a couple lesbians your wives.

>>49689672
>The most popular meme is Touhou Yukkuri. So popular it has become that it has transcended the series itself, spawning as its own genre, with even random japanese grandmas and preschoolers knowing what it is, even if just by osmosis. You can find thousands of videos made with Yukkuris daily on Youtube, just search "ゆっくり".
That'd be so only within Japan, isn't it? Fumos are more popular worldwide, for example.

>>49694211
The catch being that Touhou is and will always be more popular in Japan and in Asia in general. The west doesn't make up any significant percentage of fans, yes, even when counting toddlers that only know Touhou through Fumo memes.
For every 1 western person making Fumo memes, Fumo videos, etc, there are 15 Japanese/Chinese guys doing the same but with Yukkuri.

>>49693492
Prizm Light Fragments, while old, is pretty far from the oldest arrange. Stardust Reverie, the oldest known entire ALBUM, is older than that by 4 months, as Prizm released on Dec 2003, while Stardust Reverie released on August 2003.
I also wouldn't count ZUN's own arranges, personally speaking. Really, this and stuff like questions of "oldest fanart" and "oldest fan animation" is more of a question of:

"When did phenomena of Touhou fan dedication start?"
Because, while NND is definitely the catapulting point for it, it started somewhere before that.

The first Touhou uploaded to danbooru. ID #29. May 24th, 2005.

bump

>>49703114
flan wins again

Somewhat related to the anon above, Keine's the first Touhou to be uploaded to Pixiv on September 13, 2007. 3 days after the website launched.

>>49692596

bump

>>49703114
Flan's butt

>>49689634 (OP)
>Dat cunnilingus
Merry is such a lucky girl for having their pussy licked by another lucky girl, Renko
Absol/u/te kino OP pic

>>49689649
>I think there's a graph about this (alongside the opposite), but I don't have it
I think this one is outdated, it doesn't have the newest of the newhus and

>>49689649
>The most popular confirmed Touhou fan, could be a celebrity or something
Toby Fox, almost certainly. He is upfront about how much Touhou inspired Undertale and Deltarune's fighting style. He's even linked up with ZUN at least a few times. Hundreds of thousands of people all over the world worship that man, I'd even argue it's more intense than ZUN worship because ZUN doesn't directly interact with the community through social media as much, and Undertale/Deltarune fans are younger and more impressionable in general

https://www.youtube.com/watch?v=LfUVpqr3aHs
https://www.youtube.com/watch?v=XIv8MSJW4nQ

>>49715806
>makes American touhou
>fills it with furries
What did he mean by this?

>>49698009
I wonder if there are pre-EoSD Touhou fanworks

most smelliest 2hou?

>>49719346
Yukari.
Confirmed by ZUN

>>49719368
hot

>>49715884
Jackalman has been drawing since 1997

Another measure we can look for is oldest dedicated fan site. Can probably do western and eastern spheres. I found the listed copyright on the archive of the old Maidens of the Kaleidoscope domain is listed as 2006. That dates it to before Mountain of Faith.

Least promiscuous Touhou: Sanae

Best wife: Yoshika

>>49692596
Is it not supposed to be beatable without hacks, or did ZUN fuck up when programming it?

>>49736480
It's a punishment for not beating Gengetsu fast enough, so it's technically supposed to be unbeatable of sorts.
Note that when I say "unbeatable", I mean uncapturable. Many have done it by bombspamming.

>>49737375
And to expand on this, it being capturable in 15fps means theoretically some human out there must be capable of capturing the spellcard. That human just hasn't played Touhou yet, whether said human is alive today or still to be born in the future.

>>49689634 (OP)