#sudoku for beginners
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social-growth-assist · 29 days ago
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In this ebook, you will discover the topics about history and development of Sudoku, be a Sudoku solver and exercise your brain, the math behind Sudoku, rules of playing Sudoku, the easiest way to play Sudoku, Sudoku puzzle tips, tricks and tips for Sudoku puzzles, Sudoku tips and killer moves, 7 careful steps on how to solve Sudoku, facts you need to know about having a printable Sudoku, the best part playing the Sudoku online and so much more!
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heatheniousmaterials · 4 months ago
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⬛7️⃣3️⃣4️⃣⬛1️⃣6️⃣2️⃣⬛5️⃣8️⃣9️⃣⬛
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Can I get a harder one?
surprise! it's a sudoku puzzle
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thewrittingpan · 9 months ago
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Random Head cannons:
Lilia
I firmly believe that he would have a Mountian Dew addiction- sure I think other sodas are possible too like Dr. Pepper but there’s this “dad clock” that has haunted every divorced father I’ve met and it’s a Mountain Dew clock and it always hangs on the wall where the kitchen meets the dinning table. Don’t ask me why it’s a trend in my life that’s between me and my therapist but I feel that Lilia would probably own one in his gamer room.
Speaking of which he’s got a damn gammer room. I’ve admittedly been out of the loop event and plot wise since the release of ignihide’s chapter (I can not spell forgive my dyslexic ass), but it doesn’t matter if it’s just his bedroom, a whole separate room, a streaming room or not. It has a fancy custom built pc, one that lights up and the whole room is themed to match. It’s very well put together and could probably pay my college tuition with the merchandise he may collect.
I personally think that since Lilia is so old, he tends to hoard things. It obviously snuck into my fic Ring of Mushrooms with just the whole house being a cluttered mess of history. Some of it is me trying not to be a hoarder myself but living nicknack because I am just a bird in a human shape, but he just has a lot of things he forgets about.
Call it time blindness, forgetfulness, or sentimentality but he just keeps pictures, books, gifts, random things his sons have drug into the house or stuffed into their pockets. He has jars of buttons that Malleus collected as a toddler, the shiny rocks Silver picked up by the stream, he’s the type of guy to have a full box of the same pencil because it’s his favorite and there was a rumor it was being discontinued.
I also think that he has a soft spot for pinks and pastels especially when the boys were young. Mint/sage greens were a common choice for blankets, hats, and mittens. He also probably color coded the boys. It doesn’t matter if they were the same age or not just for ease and avoiding fights he totally did.
Lilia probably has a bunch of abandoned hobbies. Things he did long enough to have a humans level of decent but not great. if he were to “relearn” it he would appear to be a savant to a real beginner. Some of these hobbies include: Calligraphy, Crochet, Knitting, Fish lure making, Astronomy, Woodworking
Hobbies he would be bad at:
Drawing/Painting, he has a bad understanding of color but a great eye for depth and detail. The forms are always very off putting though.
He tried birdwatching he isn’t bad at it per se, but he often gets interrupted or caught up in something that is not the birds.
He wanted to do quilting and scapbooking, it’s not that he can’t do them either but he always forgets the projects. The scrapbooks mostly the quilts he has a lot more practice with as baby shower gifts for neighbors and for his own kids. Yet his stiches can be sloppy same with the binding.
He has a fondness for spinel gems he likes the wide array of colors like most gems but he likes a lot of the vibrant pinks they come in
Malleus
I think malleus would have a habit of forgetting to eat if not reminded or brought food. I cannot explain why I think this I just have a hunch.
I think Malleus is great at word puzzles and puzzles in general, it’s not inherently that he’s super smart but he just knows patterns more often than not. However he is quite horrible at pop culture references and trivia. For example he is good at Wordle, Sudoku, crosswords, and connections, but since crosswords and connections often have pop culture references those are the ones he struggles with most.
When he was young he collected things. I mean a lot of things, buttons, pins, rocks, pinecones, leaves, he pressed and dried flowers, half of his room was just wall-to-wall collections. This continued on until now but it’s just gotten more mild, though it flares up during stressful times.
He’s very good at quilting if I had to assign a good trade themed hobby. I’m open to other needle crafts like embroidery or cross-stitch but I think quilting is something that gets done during school breaks and he often sews in former button collections to them.
I think he has an aversion to some kind of food, whether it be things like a texture like he doesn’t like the feeling of bananas or the taste of pees makes him nauseous. I don’t think it’s an allergy or anything just something that physically makes him feel like death is the only solution to the minor inconvenience.
He’s a peridot guy sure emeralds work too but if he’s being honest the peridots are cuter
Silver
One time he had a talking to about throwing sand. He was only three at the time but it had to be revisited after an incident with an ant hill when he was four.
He sleeps in a funeral-showing sort of way. His hands clasped on his chest while he lays on his back. He rarely moves in his sleep, but cheese can cause him to sleep walk.
Speaking of which he has a mild lactose intolerance. He doesn’t care to actively avoid dairy but he often forgets he has it. On many occasions he has eaten too much dairy and was genuinely confused by the way he was having tummy troubles.
He cries at weddings.
He doesn’t cry at funerals.
Silver has this hobby of wanting to bird hunt but falls asleep too often. He does however have some half okay drawing skills. Enough to have an upper hand in Pictionary maybe but a good hand on proportions and the details are messy but it works.
He has a fondness for pearls it’s the type of jewelry he thinks is the most beautiful.
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zolakin · 3 months ago
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Printable Samurai Sudoku Easy - 100 Puzzles PDF | Instant Download
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ramblingsfromthytruly · 3 months ago
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planning ≠ productivity
yesterday i made a daily to-do list for each day til 31st august. i made a monthly plan for september. guess what i did NOT do yesterday? study or be productive in anyway whatsoever. you know that audio that goes something like "i'm a ____. ofc i ____." well for me it goes like, "i'm an intj. ofc i procrastinate by planning." the problem is that i make all these plans and never execute them and instead just update them when more information presents itself. i never do, i just plan. that is a HUGE issue of mine and i cannot go on like this. so i'm challenging myself to a 50-day productivity challenge. basically i want to have high hours of both sleep & studying in the next 50 days and cut down on doom scrolling and bed rotting. i hope i feel the satisfaction of 50 well rested & academically productive days!! also my mid terms are coming up in a month so i n e e d to get my shit together and hit the books full force. my biology teacher is actually going to kill me if i get anything less than 65/70, she actually threatened me 😃.
24/08/2024
woke up at 7 a.m. (i kinda have to for school)
showered 🚿
morning skincare
my physics teacher is so annoying ajdhfdjhsdkjh
finished a poem i had started yesterday in school
solved two sudoku puzzles in school
doom scrolled on tumblr & pinterest :(
ate lunch
recorded a time lapse of time spent studying
studied psychology ch-1: what is psychology?
posted a youtube short
extended duolingo streak to day 148
practiced playing keyboard (i'm very much a beginner & i'm finally properly coordinating with both hands so yay!! still have a long long way to go ofc)
planned for tomorrow
night skincare
finished reading english supplementary reader fully: snapshots
tomorrow is a sunday and i have a lot to do, though luckily monday is a holiday, i don't want that to mean i can slack off. i've already made a list of stuff to do on monday too and each day till the 31st.
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capitalismwasamistake · 1 month ago
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can tou give us fun facfs about sudoku plz i am interested
Anon, I am kissing you on the mouth
Here are five random sudoku fun facts!
(With detailed explanations for absolute beginners under the cut)
1.One of the most famous sudoku variants is called Killer Sudoku
2.Some sudokus have chess moves in them
3.The secret – the sum of the digits one to nine is 45
4.The sixteen digits in the 4x4 corners of a 9x9 sudoku are the same sixteen digits as the ring around the central box
5.One of the simple sudoku techniques is called the X-Wing (Sudoku Star Wars crossover? Not Clickbait??? 😱)
Explanations
First, a bit of notation. In sudoku, the grid is divided into rows, columns, boxes, and cells. Rows are named from top to bottom, and columns from left to right. Boxes are the 3x3 squares – they’re numbered left to right and top to bottom. The small individual squares are called cells. Cells are numbered by their row and column – roll one column three, roll four column seven, etc. You write R2C6 for short. Below you see a standard sudoku 9x9 grid with the rolls, columns and boxes labelled. The red cell is R1C3, the blue cell is R4C7, and the black cell is R2C6.
(Some people use lowercase letters in labelling cells, it’s a matter of personal preference.)
There are small digits in three cells in box 8. The centre digits in R7C6 indicate that this cell can only contain the digits one or two, but we don’t yet know which one – this gives us information about the individual cell only. The corner digits in R9C4 and R9C6 indicate that the digit three can only be in those two cells within the box – this gives us information about the box only, as each of those two individual cells may have other possible digits.
(This is a somewhat “standard” but by no means universal usage of centre and corner small digits)
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With the jargon out of the way, let’s get into the neat sudoku details!
1.Killer sudoku
Funny name, right? Sounds dangerous!
Killer sudoku follows normal sudoku rules (the digits one to nine must be placed once each in every roll, column, and box of the grid), but adds “killer cages” – groups of cells outlined in a striped line. At the corner of the killer cage you can see a number, which represents the sum of the cells within the cage. Digits cannot repeat in a killer cage.
This doesn’t seem like a lot, but it actually gives you plenty of information – like in the example below, where you see R5C5 and R5C6 in a cage whose total is 17 – there is only one way to make two cells add up to 17 in sudoku, and that is 8+9=17. Therefore you now know that those two cells contain the digits eight and nine in some order.
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With killer cages it’s easy to make a grid that doesn’t have a single given digit yet still has a unique solution!
2.Chess constraints
Another popular subsection of sudoku variants is the so-called chess move constraints. The most popular is the knight’s move constraint – a sudoku having a knight’s move constraint means that, if you imagine the grid as a chess board, no digit can be placed within a knight’s move from itself. In the below example, the digit in the red cell (R5C5) cannot be placed in any of the blue cells under a knight’s move constraint.
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The other two chess move constraints are the king’s move – a digit may not be placed in any of the surrounding eight cells; and the queen’s move constraint.
Bonus mini fun fact! Queen’s move constraints are used sparingly in sudoku, and for good reason – when you see them, they’re usually applied only to a single cell in the grid. That is because you cannot build a sudoku grid where every cell and digit is subjected to the constraint – try it yourself! Open Sudoku Setter and you’ll see that you can’t even make a single digit satisfy this constraint. Knight and king’s move’s constraints are much more forgiving, and you could build a sudoku that satisfies them relatively easily.
3.The Secret
That one’s easy: 1+2+3+4+5+6+7+8+9=45
But why do you need to know it? Well, the Secret can help you in a lot of sum-based sudoku variants, such as killer, sandwich, or skyscraper. It can also help with geometry-based sudokus that use sudoku set theory, but that’s a topic for another day.
In the bellow example, which uses killer cages, you can see that one of the cages in box 4 extends by one cell into box 1. You know the total of the box (45), and you know the total of all four cages – 50. You know, therefore, that the single extra cell in box 1 must account for the difference between the box total and the cages total. So now you know that R3C3 is exactly 5!
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Bonus mini fun fact! We call it “the secret” after two prominent figures in the sudoku community – the hosts of the YouTube channel Cracking the Cryptic, Simon Anthony and Mark Goodliffe. The two of them started calling it that a while back and it caught on. I greatly recommend their channel if you want to learn more about sudoku – they post two sudoku solving videos every single day and allow you to use their very comfortable solving software Sudoku Pad to try to solve the puzzles along with them! They got me into variant sudoku in the first place and I cannot sing them enough praises!
4.The Phistomefel ring
Another geometry-based sudoku technique, the Phistomefel ring is named after the sudoku setter Phistomefel, who first used it. It says that the four digits in each of the grid corners (highlighted in yellow bellow) correspond to the sixteen digits around the central box (highlighted in blue). This is true for all 9x9 grids that abide by normal classical sudoku rules! Isn’t that neat?
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Here's Simon from Cracking the Cryptic giving a simple geometry explanation for why that is!
This technique comes up in sudokus with medium to high difficulty and it’s a bit situational, but can really crack open a puzzle. I included it mostly because it’s a cool property of sudoku grids!
5.The X-Wing
Let’s end it all by highlighting that we’re actually massive nerds. The X-Wing is one of the easiest to learn sudoku techniques. It’s easiest to illustrate with an example, so look at the image below:
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The situation is this: the two cells in box 4 are a one-two pair – meaning that those two cells contain the digits one and two in some order. In box 6, the two digits are a one-eight pair – they contain the digits one and eight in some order. You’ll notice that those two pairs share rolls – both are in rows four and five. And both of them contain the digit 1. Classic sudoku rules tell us that the digit 1 must appear once in row 4, and once in row 5. The pairs each have a one, therefore they account for two instances of the digit 1.
So two situations are possible now. Option one: R4C3 is a one – in which case R4C8 can no longer be a one and will be an eight – and therefore R5C8 is also a one. This is the “yellow” state of affairs, as per out highlighting. Option two: R5C3 is a one – in which case R5C8 can no longer be a one and will be an eight – and therefore R4C8 is also a one. This is the “green” state of affairs.” In either state of affairs, the instances of the digit 1 in rolls 4 and 5 are accounted for by the two pairs.
You may notice that the “yellow” and “green” options cross – forming something like an X shape, which some nerd decided reminded them of the X-Wing ship from Star Wars. So we now say that those two pairs form an X-Wing of the digit 1.
Why is an X-wing useful? Look at the central cell, R5C5 – at some point we’ve deduced that it can only either be a one or a four. Now look back at the X-Wing: it only gives us two sets of affairs: “yellow” and “green”. What happens if we have the “yellow” state of affairs? R5C8 is a one, meaning that R5C5 cannot be a one and must be a four. Switch to the “green” state of affairs: R5C3 is a 1, meaning that R5C5 cannot be a 1 and must be a 4. Conclusion: the X-Wing tells us that R5C5 is always a 4! It gives us a digit for free!
This is true for all cells within the X-Wing – once you have it, you can remove 1 as an option from all the cells between R4C4 and R4C7, as well as between R5C4 and R5C7!
Anon, I’m sorry, or maybe you’re welcome.
All example images created with F-Puzzles Sudoku Setter.
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saepiae · 3 months ago
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you know i recognize that some books are written more complexly and are deemed ‘inaccessible’ for it but like if youre beginning reader or not the strongest reader, it’s still accessible isn’t it? you just read it slower and with a dictionary. it’s like hard sudoku isnt inaccessible to a beginner sudoku player it’s just going to take you longer and you might need a bit of help. and some practice and time to build to
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cloakat · 4 months ago
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🦇 Welcome to Cloakats! 🦇 As the official Lorekeeper site launch in May, we have now decided to have a beginner's bag for anyone who joins! When you sign up for the site, you can get a starter bag that includes various currencies, a random item to edit a MYO with, and a Cloakat MYO, itself! Please note due to the lore and story involving battle and weapons, the species is best suggested for 16+ members.
Please feel free to review all info here: 🌳 What are Cloakat? 🌳 https://www.cloakat.com/info/CloakatInfo
🧬 Traits: 🧬 https://www.cloakat.com/world/species/1/traits
⛺ Join the Discord If you'd like to! ⛺ (Not needed, just a good community perk! All news is announced on the site!) https://discord.com/invite/xtaVFtcgTm
🏕️ Get a MYO for free: 🏕️ First, sign up and verify your email in your settings. https://www.cloakat.com/info/about Then you can get the bag with items, currency and a MYO for free, here: https://www.cloakat.com/shops/4
🐌Other species in the Cloakat world: 🐦 (More to release; TBA) https://www.cloakat.com/world/species
🎮 Monthly Activities: 🎮 Cloakats has monthly "festivals" where many activities are released to the player who can earn currencies without the necessary need of drawing for currency. We are a very community-focused species, and thus so, we love to keep our bats entertained!
Some of these include: - Monthly Art/Writing Prompt - Monthly Festival-Related Art/Writing Prompt (Exclusive Item earned when completing) - Art Challenge - Palette Challenge - WordSearch - Crossword - Maze - Jigsaw Puzzle - Guess Who? - Word Scramble - Sudoku - Species Quiz
🌳 Here are some of the extensions/onsite activities included on our site: 🌳 - Crafting - Foraging - Dailies (Free daily currency with a chance for other items randomly implemented monthly) - Yearly Birthday Rewards (MYO and items + currency) - Higher or Lower game - Donations Shop - Award system with a turn-in system for currency - Collectibles with backstories, some longer stories than others. - Collectible Pets (They can level up and be bonded with and give monthly gifts) - Fetch Quests/Activities - Etc.
🦇Thank you so much for reading! 🦇
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candycryptids · 9 months ago
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Full name: Ishi’li Jusumhi (Sometimes referred to as Hideki by One Person)
Nickname: Ishi, Warrior Of Lights Little Shadow, Beloved Sapling
Jobs: Scholar, Ninja, Samurai, Astrologian, Arcanist (beginner), Fisher (casual), Culinarian (badly), One Of the Warriors of Light
Gender: Boy, but also a girl, so- (He/She) [I use They when the placement on the timeline isn’t clear, since he starts out masc and then slowly slides Fem, and then ends up bi-gender- it is a mess.]
Race: Miqo’te
Age: 25
Origin: Isekai’d, originally from Japan. (Eorzean origin: Ala Mhigo)
Religion: Prays to all 12, favors Rhalgr up to HW, then favors Menphina with increasing intensity through Heavensward till the Pantheon Raids (where shit gets kind 😳😵‍💫 for religion and Ishi)
Sexuality: Men, Masculine presenting People, occasionally also Physically Strong Women (Self identified as Gay/Queer)
Relationships: Kizuna [Husbands Oc!] (Co-WoL, Complicated Romantic Feelings)
Keathan [also Husbands Oc lol] (Mentor in Aether, FWB, party member)
Unique Physical Traits: Covered in freckles, has a scar on his lip
Likes: Travel, Colorful drinks (boozed or not), The Golden Saucer, Soft and comfy clothes, rice bowls, Sudoku, Sparring, racing, Chocobo racing, Triple Triad, Rain, Fat Cat Anything, Blue (the color), Parkour, Gambling, Mahjong
Dislikes: Bitter drinks, Mud, being completely Alone, Aetheryte Travel, being Cold, Archon Loaf, Mother Mionne, and The Company Of Heroes.
Can often be found: In the Gold Saucer, at the Moonfire Faire, and Revenants Toll (in the Rising Stones).
Character Tags: #Ishi’li Jusumhi #FFXIV Ishi
Playlists: [Dazzling Eorzean Adventurer In Purple]
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hypnagogics · 1 month ago
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you’ve got me feeling like a beginner at sudoku—a bit confused, but excited to dive in -💕
does this even work? lol
HELP 😭😭😭 it does work and ill be stealing it thank you
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Level Hard
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aphrogeneias · 3 months ago
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Hii, im upsidedownbunnyy (this is my main) bringing you some sudoku tips!
This is probably going to be very generic and very much targeted to absolute beginners since i dont know for example in which parts you get stuck, but hopefully some of the following yapping will be of help<3
I’ll try to explain the best i can because without showing you is gonna be kinda hard hehe hope it makes sense!
So i guess my strategy playing sudoku is through elimination process, since you know that you have a max of 9 possibilities to write down in each square.
I think the easiest way is to start by going through each of the big squares. Start with the one that has the most numbers on it already (its usually the easiest to fill out! AND it helps you fill the other squares next to it :)
So you can go through each of the big squares going through 1-9 on each one, and see if you can fill any of the empty spaces. After i go through all the big squares, i usually do it again if i’ve filled out any blank spaces, since you have more information you could probably see a number you can write down now that you couldnt before, or you may have missed something, which honestly happens a lot.
After that, go individually through each row and column.
What i do first is i go looking for the obvious and easy ones first.
For me, that looks like focusing on either a row or column of the big squares. And I sort of scan or go through the numbers. If there are 2 out of the 3 possibilities of the same number (since im looking at an entire row of the big squares, that means im looking at 3 normal rows), then I focus on that and see if i can write it down.
-> one important tip is that if there are 2 numbers that can only go in 2 places in the same row/column/big square and they cant ho any other place, then those 2 spaces are reserved for those 2 numbers only. No other number can possibly go there.
It feels kinda obvious if you think about it, but someone had to point it out to me, and that was a complete game changer!
Use the notes if you can, sudoku is easier if you dont add memorization to tue mix haha. I personally like to only write down notes when i have only 2 numbers that can only go in 2 possible places (what i tried to explain above) max i do it with 3, because if you start writing down every single possibility you find it can get overwhelming😅
Overall if you feel like you are stuck try looking from somewhere else, and have patience! It does get easier with time
Let me know if this made sense! If you need help with sudoku in some other way or anything i’ll be happy to help :)
omg hi, baby!!! that was so sweet of you to type this whole thing out for me, and it was really helpful! especially the two number tip, i wouldn't have thought of that by myself either :')
i get intimidated by anything that is number related even though, like you and others pointed out, it isn't really about math but about logic, and those little pieces of advice will help a lot
thank you ❣️❣️❣️
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raccoonfallsharder · 8 months ago
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Hello, dear friend. I’d be interested in hearing your take on any of these questions. I always love hearing your thoughts.
A: Of the fanfic you’ve written, which is your favorite and why?
E: What character do you identify with most?  Is there a certain fic of yours that captures these qualities particularly well?
F: Is there a song or a playlist to associate with [insert fic]?
H: How would you describe your writing style?
K:  Do you have a guilty pleasures in fic (reading or writing)?
L:  Which of your fanfics was the most emotionally challenging to write?
Q: Do you like getting prompts from your readers?
R: Which writers (fanfic or otherwise) do you consider the biggest influence on you and your writing?
X: How would you categorize your fanfic reading?  Are you a voracious reader?  Do you carefully pick and choose?  Something in between?
so many questions!!! you sure do know how to indulge a girl ♡ thank you, dear friend. you are my favorite daffodil full of sunshine.
A. window across the galaxy and adorations are my favorites. i think window’s the best longform piece i’ve ever written (and probably ever will) and i poured so much of myself into it. it was everything i wanted for rocket and it was healing for me, and i love and identify with jo so much. and adorations just makes me happy. ohhh you know what? i also really like ugly sweater and traditions. and machinery from prompt week. and triptych, sunshine, sweatshirt girl, and reconnaissance for beginners. and some of headcanons & imagines. shit.
E. i put a lot of myself in every oc and reader tbh. sweatshirt girl and jo are probably the most transparent self-inserts so far and came from places where they were 100% what i wanted to give rocket + the comfort i needed (sweatshirt girl was very much a reflection on my life at the time). well, and reader from tomorrow, which was 100% my attempt at self-comfort after a bad day at work. i reflected a lot of my real-life experiences through those characters, and i based the way they interact with others almost entirely on how i try to move through the world. i also expect to identify with noa at least as much as jo (oc from other duties as assigned, which might be why it’s so hard to write it). and honestly? i identify with rocket a lot. he wears his pain differently than i do but we both have skeletons that are not doing what we want them to do, chronic pain, and buckets of survivor’s guilt. plus i headcanon rocket has a sequencing disorder like me (ꈍᴗꈍ) i allude to it a lot in cicatrix and certain headcanons (like the sudoku one!) and some other things and i'm trying to write a fanfic about it lol
F. the only fic i have a mental playlist for is the very boring adventures of space pilot & sweatshirt girl, and it’s mostly chillhop essentials winter 2019 and aviino’s plush and cocoon albums but the thing is it HAS to be on vinyl because that’s the whole sweatshirt girl vibe
H. my writing style is chaotic, exists entirely outside the bounds of space & time (mostly because of the sequencing disorder) and is more about feeling than making sense. my word choice is self-indulgent and erratic and based more on what tastes right to me than anything else. emotions are way easier to write than plot. (huh. maybe that’s the sequencing disorder too.)
K. do i have any guilty pleasures in fic-writing or -reading?? girl i write raccoon porn. it would all be a guilty pleasure if i believed in guilty pleasures. but i don’t. i try really hard not to feel guilt about any of my pleasures. life is short. capitalism sucks. write about raccoon dick
L. it’s hard to say which piece of fanfiction was the most emotionally challenging for me to write because i think writing is actually a way of organizing and processing emotions for me. if anything, writing emotional scenes feels cathartic — a relief. but finishing things always feels risky. endings rarely satisfy people. so the more people like a piece of mind (blackmail material, window, windfall), the harder it is to end. it's more about trying to manage imposter syndrome than anything else i guess
Q. GIVE ME ALL THE PROMPTS
R. markus zusak has been one of the most influential writers for me. i love that every character in his books has their own story, their own value and journey, independent of the main narrative. jonathan safran foer writes the sentences i want to write. the read like a gut-punch. (he gets quoted a lot in other duties.) both of these writers would probably be horrified by this because im fairly certain they do not write smut, especially not featuring raccoons
X. how do i characterize my fanfic reading? it really depends on what is going on in life. we all have to ration our time and i hate having to choose between reading and writing and drawing, but here we are. if it’s a fic by an author i like, i prioritize it. it can be really hard for me to read things that are released chapter-by-chapter over an extended period, so i am more apt to read things that are short-run or that are close to being finished. but i especially like to support writers i know — which is why i always ask folks to add me if they have a taglist ♡
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Mmm. Haven't been feeling very sociable the last few days. I've mostly been doing duolingo, sudoku and even beginner chess lessons for some reason. (I don't really have the gist of it yet in terms of, like, winning a match, but at least now I know how the pieces move and stuff.)
Now bedtime, gotta recharge for the new week :')
You guys take care, stay hydrated and have a good night/day ^-^
All the hugs <3 <3
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capitalismwasamistake · 1 month ago
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More sudoku! @two-hundred-percent-trash asked for an explanation on the Y-Wing! Here you go, bestie ^_^
If you missed my previous sudoku post, you might want to check it out for the sake of notation and a primer on the X-Wing, since we'll be comparing the two.
The Y-Wing is a beginner technique slightly harder than the X-Wing that uses three cells instead of four, but in return is less versatile. Let's look at the example:
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Here the green cell R4C3, is the "body" of our Y-Wing, and the yellow cell R4C7 and the red cell R7C3 are our "wings" (those are not their actual names, but exact terminology is less intuitive imo). The plain cell, R7C7, is our target cell.
How do we identify a Y-Wing? With the X-Wing it was easy, you had two pairs that contained the same digit. Here it's a bit more complicated. To have a Y-Wing, the following needs to be true: each wing has a digit in common with the body, and the wings have a digit in common with each other. As you can see, here the green and yellow cell both have a 1, and the green and red cell both have a 2. The yellow and red cell both have a 5.
So what does a Y-Wing tell us? First, you identify your target cell - that's the cell that both wings "see", in which case R7C7. Once we have the target cell, we start thinking about the state of affairs.
Let's imagine the green cell is a 1. What happens then? Well, if that happens, the yellow cell is a 5. Which means that the target cell cannot be a 5 and must be a 7.
Now about the other possibility - the green cell is a two. If that happens, the red cell is a 5. Therefore the target cell once again cannot be a 5 and must be a 7.
Therefore, not matter the "yellow" or "red" state of affairs, our target cell cannot be a 5.
So what the Y-Wing tells us is that the target cell cannot contain the digit common to both wings!
Why is it less versatile? If you remember the X-Wing clears up a digit from all cells between your two pairs - the Y-Wing only affects the target cell. Nevertheless, you're more likely to encounter a Y-Wing in a sudoku than an X-Wing (because it requires less cells), even though it's harder to identify.
Bonus: you could think about it backwards! Let's focus on the target cell instead of the body of the Y-Wing. We start thinking of those states of affairs. If the target cell is 7, nothing happens to the coloured cells. But if the target cell is 5, disaster! The yellow cell is a 1, and the red cell is a 2. But then the green cell can be neither a 1 nor a 2, therefore it cannot be anything! So now you can claim that the plain cell cannot be 5. This is a less optimal way to do it, because the target cell may contain more than only 2 options, so you have more to get through, and also requires you to actually do the "state of affairs" contemplation, whereas once you're proficient with the Y-Wing you can just remember to eliminate the digit common to the wings from the target cell. Still, to some people the reverse method may be more intuitive!
Hope that makes it clear!
Example image created with F-Puzzles Sudoku Setter
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breathofthebloodlily · 9 months ago
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mekt, 16
16 (What is your character's favorite leisure activity?)
She enjoys cooking+baking, and also loves Games (more the physical precision ones than board games. An absolute murderer at pétanque. Only beaten in shooting at festivals by Porop)
Speedruns whatever the local dwarven newspaper's version of sudoku is.
In a modern au she'd probably be the mystery gamer who just wrecks everyone and helps beginners and people are like WHO IS HE and then it's Someone's Mom. (Alternatively: the arcade regular)
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