/r/Arithmancy

Photograph via snooOG

Welcome to the Harry Potter puzzle subreddit where the students of Hogwarts are asked to work with their houses to decipher clues in order to practice their Arithmancy and curse-breaking skills!

The puzzles will be posted on r/Arithmancy and a link to the puzzle will be posted on Discord.

We are now part of the r/HarryPotter community and we will be awarding House Points to the best solvers!

Check the latest announcement thread for more details and info on how to join your house!

Welcome to r/Arithmancy, the main hub for the new themed puzzles to be run for r/HarryPotter.


Would you like to be tagged when a puzzle is posted? Fill out this form.


Same rules apply as the main sub:

  • Don't be a jerk
  • No modern politics
  • No piracy
  • No pornography
  • Respect users' privacy
  • No monetary exchanges
  • No ticket sales
  • Follow reddit's rules and "reddiquette"

Some new ones will be added for the sake of keeping the integrity of the game:

  • Do not post clues or hints for others
  • No collusion or collaboration with other groups/houses

Please report anyone who breaks any of these rules.


Current schedule

See the stickied announcement thread.


Links

Puzzle Updates Spreadsheet and Current Points Tally

Submission Form

Sign up / Opt out of Reddit Notifications

Official Puzzle Guide


Arithmancy Google Calendar

Add to Your Calendar

 

View the events


Join the Arithmancy Discord Server

The puzzle-solving happens mainly on Discord. Here are links to the posts containing house invite links (you will need access to the common room to view them*):

Ravenclaw: https://redd.it/b9k21w
Gryffindor: https://redd.it/egyyk0
Hufflepuff: https://redd.it/i97dm3
Slytherin: https://redd.it/b9ri5d

*If you would like to join your house’s common room, check here for instructions.

/r/Arithmancy

1,402 Subscribers

1

Puzzle 4 Results - October 31, 2024

Puzzle 4 Results

Link to puzzle: https://redd.it/1gevcbp

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for October

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 1041044
Puzzle 2043490
Puzzle 339474849
Puzzle 40000
Arithmancy Points391319793

Level Results

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

This level was a training puzzle and therefore was not worth any points.

Hints:

Ravenclaw - 0 hints

Slytherin - 0 hints

Solution

The answer was: >!Slughorn!<

Solution: Part 1: >!assign each sweet a colour according to the flavour (the colour the sweets would typically be, more or less) and then hexahue for “bezoar“.!<

Part 2: ?!Flag semaphore the pumpkin stem and leaves for “liquid luck“, then use another name for it for “Felix Felicis“ (the copy to clipboard has “aka“ on it).!<

Part 3: ?!Binary the webs starting at 12 o'clock and moving clockwise, then convert to text for “Slughorn“.!<


Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.


House Points for October

HouseGryffindorHufflepuffRavenclawSlytherin
House Points112200166162
1 Comment
2024/10/31
16:53 UTC

1

Level Four - October 29, 2024

Level Four

“Jus’ beyond the pumpkin patch, I thought,” said Hagrid in a choked voice. “I’ve already dug the — yeh know — grave. Jus’ thought we’d say a few nice things over him — happy memories, yeh know —”

Good luck and remember that the theme this month is HP and the HBP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Thursday, October 31, 10 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/10/29
14:01 UTC

1

Puzzle 3 Results - October 22, 2024

Puzzle 3 Results

Link to puzzle: https://redd.it/1g7trum

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for October

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 1041044
Puzzle 2043490
Puzzle 339474849
Arithmancy Points391319793

Level Results

Speed bonus and Tiebreaker:

First - Slytherin - u/29925001838369 (Solved in 1 hr, 18 min) - 5 + 4 = 9 points

Second - Ravenclaw - u/ShadowOfApollo (Solved in 3 hrs, 30 min) - 5 + 3 = 8 points

Third - Hufflepuff - u/quirkychipmunk (Solved in 7 hrs, 34 min) - 5 + 2 = 7 points

Fourth - Gryffindor - u/Usual-Arugula1317 (Solved in 40 hrs, 6 min) - 0 + 1 = 1 point

Guesses from each house:

Slytherin - 3 Correct, 0 Incorrect

Ravenclaw - 1 Correct, 0 Incorrect

Hufflepuff - 1 Correct, 0 Incorrect

Gryffindor - 1 Correct, 0 Incorrect

Hint Bonus:

Slytherin - 0 hints - 40 points

Ravenclaw - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Gryffindor - 1 hint - 38 points

Solution

The answer was: >!Crystallized Pineapple!<

Solution: Part 1:

!Convert the chemical elements into numbers, then convert the numbers into ascii to get an imgur link.!<

Part 2:

!On dcode (hinted as DeCode) there's an alphabet by Lewis Carroll, author of Alice's Adventures in Wonderland, and creator of the Cheshire Cat character. Decipher the symbols using dcode to get “Tom Riddle Uncle“, with the answer for part 1 on the site being “Morfin Gaunt“.!<

Part 3:

!Gallifreyan, a Doctor Who writing system. Decipher it to get a question/statement leading you to “crystallised pineapple/crystallized pineapple“ (UK and US spelling)!<

Countdown to Puzzle 4

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/10/27
01:36 UTC

1

Level Three - October 20, 2024

Level Three

"-Peruvian Instant Darkness Powder,” said Ron bitterly. “Fred and George’s. I’m going to be having a word with them about who they let buy their products.”

Good luck and remember that the theme this month is HP and the HP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Tuesday, October 22, 4 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/10/20
08:01 UTC

1

Puzzle 2 Results - October 15, 2024

Puzzle 2 Results

Link to puzzle: https://redd.it/1g35kwc

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for October

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 1041044
Puzzle 2043490
Arithmancy Points0844944

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 3 hrs, 10 min) - 5 + 4 = 9 points

Second - Hufflepuff - u/quirkychipmunk (Solved in 46 hrs, 26 min) - 0 + 3 = 3 points

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Hufflepuff - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Solution

The answer was: >!Rosmerta!<

Solution: Part 1:

!“Can't see“ hints at braille. Sort them in a grid by cup and then number. Vowel initials for the names are X, consonants are O, this will spell out Hokey in Braille.!<

Part 2:

!Sort by ascending number of sides. A1Z26 the number of sides for the key to use on the letters yelled out by the shapes. Vigenere for Rosmerta.!<

Countdown to Puzzle 3

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/10/19
12:05 UTC

1

Level Two - October 13, 2024

Level Two

“Well,” said Slughorn, not looking at Riddle, but fiddling with the ribbon on top of his box of crystallised pineapple, “well, it can’t hurt to give you an overview, of course. Just so that you understand the term. A Horcrux is the word used for an object in which a person has concealed part of their soul.”

Good luck and remember that the theme this month is HP and the HP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Wednesday, October 15, 10 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/10/14
02:01 UTC

1

Puzzle 1 Results - October 9, 2024

Puzzle 1 Results

Link to puzzle: https://redd.it/1fyh2f2

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for October

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 1041044
Arithmancy Points041044

Level Results

Speed bonus and Tiebreaker:

First - Slytherin - u/29925001838369 (Solved in 41 hrs, 27 min) - 0 + 4 = 4 points

Second - Hufflepuff - u/quirkychipmunk (Solved in 46 hrs, 22 min) - 0 + 3 = 3 points

Guesses from each house:

Slytherin - 1 Correct, 0 Incorrect

Hufflepuff - 1 Correct, 0 Incorrect

Hint Bonus:

Slytherin - 0 hints - 40 points

Hufflepuff - 1 hint - 38 points

Solution

The answer was: >!Amortentia !<

Solution: Part 1:

!Part 1 was seven segment display. The different segments are labelled a-g, and if you took each of the books the quotes were from (in the three paragraphs) and A1Z26 them, they'd give you 633. Page 633 of HBP, the month's theme, gave the chapter name The White Tomb, which is the answer!<

Part 2:

!Use the years provided to figure out which films to use. All of them had a character played by the amazing Dame Maggie Smith. Indexing the first names of the characters played by Maggie Smith in the chosen films gave an anagram of amortentia.!<

Countdown to Puzzle 2

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/10/12
23:46 UTC

1

Level One - October 7, 2024

Level One

Crookshanks trotted after her, his yellow eyes fixed upon Arnold. Harry turned away from Ron, who did not look like he would be surfacing soon, just as the portrait hole was closing. With a sinking feeling, he thought he saw a mane of bushy brown hair whipping out of sight.

Good luck and remember that the theme this month is HP and the HP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Wednesday, October 9, 4 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/10/07
20:01 UTC

1

October Announcements

Welcome back for the fifty-fifth month of r/Arithmancy! For those of you who are new, welcome to the Harry Potter puzzle subreddit where the students of Hogwarts are asked to work with their houses to decipher clues in order to practice their Arithmancy and curse-breaking skills.

Fill out this form if you would like to sign up for notifications when new puzzles or announcements are posted.

Puzzle Creators Wanted!

Are you interested in creating puzzles, but you don’t want to commit to joining the Arithmancy Professors? Check out our Prefect FAQs our Prefect Guide or our new Prefect Schedule!

Instructions for how to submit your puzzle can be found in the #links-and-resources channel on Discord.

If we choose your puzzle to use, you will be given a special Prefect role in Discord that allows you to talk to the professors while your puzzle is being solved, and to prevent you from helping your House during the puzzle. This is an awesome opportunity to test out being an Artificer without committing, too.

Feedback

We would like to hear your feedback about r/Arithmancy and your suggestions for making it better. Share your thoughts about the types and difficulty of puzzles, the hints system, the points system or anything else you think of below! What did you like about last month's puzzles? What did you dislike? Do you think changes should be made to make it more fun or fair for all houses? Comment below or use our anonymous feedback form.


October Schedule

The theme this month is: HP HBP!

Each level will last 48 hours and there will be a break between each level. The puzzles will be posted on r/Arithmancy and a link to the puzzle will be posted on Discord. The fourth puzzle each month is balanced for beginners, and isn’t worth points.

Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord.

There will be 4 levels this month:*

PuzzleStart TimeDeadline
Puzzle 1Monday, October 7, 4 PM EDTWednesday, October 9, 4 PM EDT
Puzzle 2Sunday, October 13, 10 PM EDTTuesday, October 15, 10 PM EDT
Puzzle 3Sunday, October 20, 4 AM EDTTuesday, October 22, 4 AM EDT
Puzzle 4Saturday, October 26, 10 AM EDTMonday, October 28, 10 AM EDT

*Schedule is subject to change.


How to participate

Puzzles should only be discussed in your house's Arithmancy Discord channel* and your house common room. If you would like to join your house’s common room, check here for instructions.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin (Note that you can only open these if you are a part of your house’s common room.)

A link to the submission form will be included with each puzzle posted. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

If you are caught breaking these rules, you will be removed from the game.

##Points

Here is the entirety of the points calculations as they stand:

Points will be awarded based on the speed of each house to solve each puzzle, and based on the number of hints they use to solve it. All 5 hints will be available for the duration of each puzzle, and for each hint they request, the hint bonus will be decreased accordingly:

  • 0 hints - 40 point bonus
  • 1 hint - 38 points
  • 2 hints - 35 points
  • 3 hints - 31 points
  • 4 hints - 26 points
  • 5 hints - 20 points

Houses will also be awarded a number of points based on how quickly they solve their puzzle as follows: an inverted sigmoid function, 5 / ( 1 + e^(10x/a-5) ) where a is the amount of time it took for the last house to solve the puzzle, will be used to calculate the bonus each house gets for their speed, relative to the speed of the other houses that solved. Here's a link to an interactive graph on Desmos, where you can see the resulting curve. This bonus has a maximum of 5 points.

There will also be a tiebreaker added to every score based on the order of who solves first. First place will earn 4 points, second: 3, third: 2, and fourth: 1 point.

Each house’s score will be calculated using Hint Bonus + Speed Bonus + Tiebreaker = Final Score

House points will be awarded at the end of the month, based on how many Arithmancy Points each house earned in total. House point calculations are based on the new proposal in HP Meta.

2 Comments
2024/10/03
23:46 UTC

1

Puzzle 4 Results - August 30, 2024

Puzzle 4 Results

Link to puzzle: https://redd.it/1f39lhz

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for August

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 103500
Puzzle 243454641
Puzzle 30414940
Puzzle 40000
Arithmancy Points431219581

Level Results

Guesses from each house:

This level was a training puzzle and therefore was not worth any points.

Hints:

Solution

The answer was: >!Kreacher!<

Solution: Part 1: >!The morse symbols are bacon cipher. The AB is morse. The numbers are ascii. They give you nosebleed, fainting, and puking. That hints at the answer - skiving snackbox.!<

Part 2: >!Solve the cryptogram. Subtract the a1z26 values of the solved letters of the last word from the a1z26 values of the encrypted letters of the last word.!<


Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.


House Points for August

HouseGryffindorHufflepuffRavenclawSlytherin
House Points122200174160
1 Comment
2024/09/02
23:45 UTC

1

Level Four - August 28, 2024

Level Four

'Don’t put it away, idiot boy!' she shrieked. 'What if there are more of them around? Oh, I’m going to kill Mundungus Fletcher!'

Good luck and remember that the theme this month is HP and the OotP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Friday, August 30, 9 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/08/28
13:01 UTC

1

Puzzle 3 Results - August 24, 2024

Puzzle 3 Results

Link to puzzle: https://redd.it/1eycw26

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for August

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 103500
Puzzle 243454641
Puzzle 30414940
Arithmancy Points431219581

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/Lancelot_Thunderthud (Solved in 10 hrs, 36 min) - 5 + 4 = 9 points

Second - Hufflepuff - u/quirkychipmunk (Solved in 31 hrs, 8 min) - 0 + 3 = 3 points

Third - Slytherin - u/29925001838369 (Solved in 38 hrs, 8 min) - 0 + 2 = 2 points

Guesses from each house:

Ravenclaw - 1 Correct, 2 Incorrect

Hufflepuff - 2 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Hufflepuff - 1 hint - 38 points

Slytherin - 1 hint - 38 points

Solution

The answer was: >!centaurs!<

Solution: Part 1: >! Mix the two columns to make a new word. Column B's words remain whole in the middle of Column A. The red dashes anagram to “discipline“, the green dashes anagram to “hearing“, and the blue dashes anagram to “room“. The answer is courtroom ten.!<

Part 2: >! Solve the wordsearch (on the sheet), then count the frequency of each of the leftover letters, and A1Z26 to get “centaurs“.!<

Countdown to Puzzle 4

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/08/25
14:53 UTC

1

Level Three - August 22, 2024

Level Three

“Who overheard us?” Harry demanded. “Mundungus, of course,” said Sirius, and when they all looked puzzled he laughed. “He was the witch under the veil.”

Good luck and remember that the theme this month is HP and the OotP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Saturday, August 24, 3 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/08/22
07:01 UTC

1

Puzzle 2 Results - August 16, 2024

Puzzle 2 Results

Link to puzzle: https://redd.it/1esi4aw

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for August

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 103500
Puzzle 243454641
Arithmancy Points43804641

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 12 hrs, 6 min, 7 sec) - 2 + 4 = 6 points

Second - Hufflepuff - u/quirkychipmunk (Solved in 12 hrs, 6 min, 48 sec) - 2 + 3 = 5 points

Third - Gryffindor - u/Moonyandpadfoot (Solved in 14 hrs, 16 min) - 1 + 2 = 3 points

Fourth - Slytherin - u/29925001838369 (Solved in 21 hrs, 56 min) - 0 + 1 = 1 point

Guesses from each house:

Ravenclaw - 1 Correct, 0 Incorrect

Hufflepuff - 2 Correct, 0 Incorrect

Gryffindor - 3 Correct, 0 Incorrect

Slytherin - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Gryffindor - 0 hints - 40 points

Slytherin - 1 hint - 38 points

Solution

The answer was: >!centaurs!<

Solution: Part 1: >! Mix the two columns to make a new word. Column B's words remain whole in the middle of Column A. The red dashes anagram to “discipline“, the green dashes anagram to “hearing“, and the blue dashes anagram to “room“. The answer is courtroom ten.!<

Part 2: >! Solve the wordsearch (on the sheet), then count the frequency of each of the leftover letters, and A1Z26 to get “centaurs“.!<

Countdown to Puzzle 3

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/08/17
01:17 UTC

2

Level Two - August 14, 2024

Level Two

“He left!” said Mrs. Figg, wringing her hands. “Left to see someone about a batch of cauldrons that fell off the back of a broom! I told him I’d flay him alive if he went, and now look! Dementors! It’s just lucky I put Mr. Tibbies on the case! But we haven’t got time to stand around! Hurry, now, we’ve got to get you back! Oh, the trouble this is going to cause! I will kill him!”

Good luck and remember that the theme this month is HP and the OotP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Saturday, August 16, 9 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/08/15
01:00 UTC

2

Puzzle 1 Results - August 10, 2024

Puzzle 1 Results

Link to puzzle: https://redd.it/1enea63

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for August

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 103500
Arithmancy Points03500

Level Results

Speed bonus and Tiebreaker:

First - Hufflepuff - u/OoAnevor (Solved in 47 hrs, 55 min) - 0 + 4 = 4 points

Guesses from each house:

Hufflepuff - 1 Correct, 1 Incorrect

Hint Bonus:

Hufflepuff - 3 hints - 31 points

Solution

The answer was: >!Sneak/Marietta Edgecombe!<

Solution: Part 1: >!Make digits of the missing segments of a 7-segment display. The flavour mentions 'read' and it gives a 13 digit long number, which is ISBN for The BFG, which is GRAWP !<

Part 2: >!Arrange the plot points chronologically and number them. Then find the plot points with corresponding elements (by atomical number) from the given table. Then create plottable (on a graph) points with the book as X and the nth point per book as Y. Simply plotting each point on a graph gave you SNEAK.!<

Countdown to Puzzle 2

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/08/12
23:35 UTC

1

Level One - August 8, 2024

Level One

The tapestry looked immensely old; it was faded and looked as though doxies had gnawed it in places; nevertheless, the golden thread with which it was embroidered still glinted brightly enough to show them a sprawling family tree dating back (as far as Harry could tell) to the Middle Ages. Large words at the very top of the tapestry read:

The Noble and Most Ancient House of Black “Toujours Pur”

“You’re not on here!” said Harry, after scanning the bottom of the tree.

“I used to be there,” said Sirius, pointing at a small, round, charred hole in the tapestry, rather like a cigarette burn. “My sweet old mother blasted me off after I ran away from home — Kreacher’s quite fond of muttering the story under his breath.”

Good luck and remember that the theme this month is HP and the OotP!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Saturday, August 10, 3 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/08/08
19:01 UTC

1

August Announcements

Welcome back for the fifty-fourth month of r/Arithmancy! For those of you who are new, welcome to the Harry Potter puzzle subreddit where the students of Hogwarts are asked to work with their houses to decipher clues in order to practice their Arithmancy and curse-breaking skills.

Fill out [**this form**](https://docs.google.com/forms/d/e/1FAIpQLSexzdmni3rVswAxjrVGq7tYYEDYekVDqLy-QGy7btHOqluhwA/viewform?usp=sf\_link) if you would like to sign up for notifications when new puzzles or announcements are posted.

## Puzzle Creators Wanted!

Are you interested in creating puzzles, but you don’t want to commit to joining the Arithmancy Professors? Check out our [Prefect FAQs](https://www.reddit.com/r/arithmancy/wiki/prefect-faqs) our [Prefect Guide](https://www.reddit.com/r/arithmancy/wiki/prefect-guide) or our new [Prefect Schedule](https://www.reddit.com/r/arithmancy/wiki/prefect-schedule)!

Instructions for how to submit your puzzle can be found in the #links-and-resources channel on [Discord](https://www.reddit.com/r/Arithmancy/wiki/discord).

If we choose your puzzle to use, you will be given a special Prefect role in Discord that allows you to talk to the professors while your puzzle is being solved, and to prevent you from helping your House during the puzzle. This is an awesome opportunity to test out being an Artificer without committing, too.

## Feedback

We would like to hear your feedback about r/Arithmancy and your suggestions for making it better. Share your thoughts about the types and difficulty of puzzles, the hints system, the points system or anything else you think of below! What did you like about last month's puzzles? What did you dislike? Do you think changes should be made to make it more fun or fair for all houses? Comment below or use our [anonymous feedback form](https://forms.gle/oaribUJceGWDPhe98).

***

## August Schedule

## The theme this month is: HP OotP!

Each level will last 48 hours and there will be a break between each level. The puzzles will be posted on r/Arithmancy and a link to the puzzle will be posted on Discord. The fourth puzzle each month is balanced for beginners, and isn’t worth points.

Hints will be given in the private channels on [Discord](https://www.reddit.com/r/Arithmancy/wiki/discord) upon request. Tag `@hint` if your house is stuck and needs a hint to proceed. All hint requests will be logged in the `#room-of-requirehint` channel on Discord.

There will be 4 levels this month:*

Puzzle|Start Time|Deadline|

:-:|:-:|:-:|

Puzzle 1|[Thursday, August 8, 3 PM EDT](http://arithmancy.ueuo.com/?d=20240808T1500&tz=-4&msg=Countdown%20to%20Puzzle%201&font=Luxurious%20Roman)|\[Saturday, August 10, 3 PM EDT](http://arithmancy.ueuo.com/?d=20240810T1500&tz=-4&msg=Puzzle%201%20Deadline&font=Luxurious%20Roman)|

Puzzle 2|[Wednesday, August 14, 9 PM EDT](http://arithmancy.ueuo.com/?d=20240814T2100&tz=-4&msg=Countdown%20to%20Puzzle%202&font=Luxurious%20Roman)|\[Friday, August 16, 9 PM EDT](http://arithmancy.ueuo.com/?d=20240816T2100&tz=-4&msg=Puzzle%202%20Deadline&font=Luxurious%20Roman)|

Puzzle 3|[Wednesday, August 21, 3 AM EDT](http://arithmancy.ueuo.com/?d=20240821T0300&tz=-4&msg=Countdown%20to%20Puzzle%203&font=Luxurious%20Roman)|\[Friday, August 23, 3 AM EDT](http://arithmancy.ueuo.com/?d=20240823T0300&tz=-4&msg=Puzzle%203%20Deadline&font=Luxurious%20Roman)|

Puzzle 4|[Tuesday, August 27, 9 AM EDT](http://arithmancy.ueuo.com/?d=20240827T0900&tz=-4&msg=Countdown%20to%20Puzzle%204&font=Luxurious%20Roman)|\[Thursday, August 29, 9 AM EDT](http://arithmancy.ueuo.com/?d=20240829T0900&tz=-4&msg=Puzzle%204%20Deadline&font=Luxurious%20Roman)|

\**Schedule is subject to change.*

***

## How to participate

Puzzles should only be discussed in your house's Arithmancy Discord channel\* and your house common room. If you would like to join your house’s common room, [check here for instructions](https://www.reddit.com/r/harrypotter/wiki/megathread#wiki\_join\_your\_house\_common\_room).

Links to the Reddit threads with your house’s Discord invite link: [Gryffindor](https://www.reddit.com/r/Gryffindor/comments/egyyk0/), [Hufflepuff](https://www.reddit.com/r/Hufflepuff/comments/i97dm3/), [Ravenclaw](https://www.reddit.com/r/ravenclaw/comments/b9k21w/), [Slytherin](https://www.reddit.com/r/Slytherin/comments/b9ri5d/) (*Note that you can only open these if you are a part of your house’s common room.*)

A link to the [submission form](https://docs.google.com/forms/d/e/1FAIpQLSdIQ2uTkhqgLQy0hReyiAifFN4tzlbYyCw\_l3yJVTl\_bjF3HA/viewform?usp=sf\_link) will be included with each puzzle posted. Each student may submit only ONE guess per level and may have only **one** Reddit account used for participating. You may only submit for your own house.

If you are caught breaking these rules, you will be removed from the game.

##Points

Here is the entirety of the points calculations as they stand:

Points will be awarded based on the speed of each house to solve each puzzle, and based on the number of hints they use to solve it. All 5 hints will be available for the duration of each puzzle, and for each hint they request, the **hint bonus** will be decreased accordingly:

- 0 hints - 40 point bonus

- 1 hint - 38 points

- 2 hints - 35 points

- 3 hints - 31 points

- 4 hints - 26 points

- 5 hints - 20 points

Houses will also be awarded a number of points based on how quickly they solve their puzzle as follows: an inverted sigmoid function, 5 / ( 1 + e^(10x/a-5) ) where *a* is the amount of time it took for the last house to solve the puzzle, will be used to calculate the bonus each house gets for their speed, relative to the speed of the other houses that solved. Here's a link to an interactive graph on [Desmos, where you can see the resulting curve](https://www.desmos.com/calculator/gvpehsoesn). This bonus has a maximum of 5 points.

There will also be a **tiebreaker** added to every score based on the order of who solves first. First place will earn 4 points, second: 3, third: 2, and fourth: 1 point.

Each house’s score will be calculated using **Hint Bonus** + **Speed Bonus** + **Tiebreaker** = *Final Score*

House points will be awarded at the end of the month, based on how many Arithmancy Points each house earned in total. House point calculations are based on [the new proposal in HP Meta](https://www.reddit.com/r/harrypottermeta/comments/nxrzwb/point_system_discussion).

2 Comments
2024/08/04
04:32 UTC

1

Puzzle 3 Results - May 22, 2024

Puzzle 3 Results

Link to puzzle: https://redd.it/1cw8ioi

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for May

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 13739380
Puzzle 239484947
Puzzle 347484941
Arithmancy Points12313513688

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 0 hrs, 27 min) - 5 + 4 = 9 points

Second - Hufflepuff - u/SkyMiner2243 (Solved in 9 hrs, 26 min, 10 sec) - 5 + 3 = 8 points

Third - Gryffindor - u/halle_nxfg (Solved in 9 hrs, 26 min, 50 sec) - 5 + 2 = 7 points

Fourth - Slytherin - u/permagrinfalcon (Solved in 36 hrs, 37 min) - 0 + 1 = 1 point

Guesses from each house:

Ravenclaw - 1 Correct, 1 Incorrect

Hufflepuff - 3 Correct, 0 Incorrect

Gryffindor - 6 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Gryffindor - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Solution

The answer was: >!Sphinx!<

Solution: Part 1: >!Look up the meanings of each flower. The right hand signifies the answer has those traits, and the left hand signifies that the answer does not have those traits. Find the person who has all of the traits lited which is BARTY CROUCH SNR. !<

Part 2: >!The HITS when put on a grid form letters in BRAILLE. They spell out SPHINX which is the answer.!<

Countdown to Puzzle 4

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/05/22
06:01 UTC

1

Level Three - May 20, 2024

Level Three

Trying not to think about Moaning Myrtle zooming down a pipe to the lake with the contents of a toilet, Harry said, “Well, does anything in there have a human voice? Hang on —”

Good luck and remember that the theme this month is HP and the GoF!


“Mr. Diggory’s head rolled its eyes. “Says he heard an intruder in his yard. Says he was creeping toward the house, but was ambushed by his [dustbins].(https://arithmancy.ueuo.com/dustbins)”

Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Wednesday, May 22, 2 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/05/20
06:01 UTC

1

Puzzle 2 Results - May 15, 2024

Puzzle 2 Results

Link to puzzle: https://redd.it/1cregsd

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for May

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 13739380
Puzzle 239484947
Arithmancy Points76878747

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 1 hr, 54 min) - 5 + 4 = 9 points

Second - Hufflepuff - u/quirkychipmunk (Solved in 1 hr, 59 min) - 5 + 3 = 8 points

Third - Slytherin - u/AllThingsDark (Solved in 4 hrs, 33 min) - 5 + 2 = 7 points

Fourth - Gryffindor - u/Moonyandpadfoot (Solved in 28 hrs, 40 min) - 0 + 1 = 1 point

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Hufflepuff - 1 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Gryffindor - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Gryffindor - 1 hint - 38 points

Solution

The answer was: >!Pine Fresh!<

Solution: Part 1: >!Starting from the top of the maze, follow the path to the exit. Each symbol you come across is pigpen, but you must read it as you would if you were walking the maze. This spells out FLEURS DRAGON, which would be a COMMON GREEN WELSH!<

Part 2: >!Each dish is from a different country. Ring from the flavor text points toward Internation Calling Codes. Find the code for each country and then convert to a1z26, which spells out the answer of PINE FRESH!<

Countdown to Puzzle 3

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/05/16
00:01 UTC

1

Level Two - May 13, 2024

Level Two

Picking up the golden egg and his Firebolt, feeling more elated than he would have believed possible an hour ago, Harry ducked out of the tent, Ron by his side, talking fast.

Good luck and remember that the theme this month is HP and the GoF!


“Mr. Diggory’s head rolled its eyes. “Says he heard an intruder in his yard. Says he was creeping toward the house, but was ambushed by his [dustbins].(https://arithmancy.ueuo.com/dustbins)”

Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Wednesday, May 15, 8 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/05/14
00:01 UTC

1

Puzzle 1 Results - May 9, 2024

Puzzle 1 Results

Link to puzzle: https://redd.it/1cmk336

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for May

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 13739380
Arithmancy Points3739380

Level Results

Speed bonus and Tiebreaker:

First - Hufflepuff - u/quirkychipmunk (Solved in 45 hrs, 53 min) - 0 + 4 = 4 points

Second - Ravenclaw - u/stepsword (Solved in 46 hrs, 5 min) - 0 + 3 = 3 points

Third - Gryffindor - u/cleftalhorizon (Solved in 47 hrs, 59 min) - 0 + 2 = 2 points

Guesses from each house:

Hufflepuff - 1 Correct, 0 Incorrect

Ravenclaw - 1 Correct, 0 Incorrect

Gryffindor - 2 Correct, 2 Incorrect

Hint Bonus:

Hufflepuff - 2 hints - 35 points

Ravenclaw - 2 hints - 35 points

Gryffindor - 2 hints - 35 points

Solution

The answer was: >!Goblet of fire!<

Solution: Part 1: >!Overlay the scratches from the cups to get the knight's templar for Viktor Krum.!<

Part 3: >!This was harder than I expected. The flavour had the word 'number' and a string of letters in italics. Translating those letters into T9 numbers gave you the number for the London zoo. The word 'skip' was in bold, and skipping by the numbers gave you words that all described the goblet of fire.!<

Countdown to Puzzle 2

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/05/12
18:59 UTC

1

Level One - May 7, 2024

# Level One

  • Good luck and remember that the theme this month is **HP and the GoF**!

-----

“Mr. Diggory’s head rolled its eyes. “Says he heard an intruder in

his yard. Says he was creeping toward the house, but was ambushed

by his [dustbins](https://arithmancy.ueuo.com/dustbins).”

Hints will be given in the private channels on Discord upon request. Tag `@hint` if your house is stuck and needs a hint to proceed. All hint requests will be logged in the `#room-of-requirehint` channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: [Gryffindor](https://www.reddit.com/r/Gryffindor/comments/egyyk0/), [Hufflepuff](https://www.reddit.com/r/Hufflepuff/comments/i97dm3/), [Ravenclaw](https://www.reddit.com/r/ravenclaw/comments/b9k21w/), [Slytherin](https://www.reddit.com/r/Slytherin/comments/b9ri5d/). (_Note that you can only open these if you are a part of your house’s common room._\*)

\* If you would like to join your house’s common room, [check here for instructions](https://www.reddit.com/r/harrypotter/wiki/megathread#wiki\_join\_your\_house\_common\_room).

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using ****[this Google form](**https://docs.google.com/forms/d/e/1FAIpQLSdIQ2uTkhqgLQy0hReyiAifFN4tzlbYyCw\_l3yJVTl\_bjF3HA/viewform?entry.1253212384=Puzzle+1****)\*\*. Each student may submit only ONE guess per level and may have only *one* Reddit account used for participating. You may only submit for your own house.

Every *FIVE* guesses, the current number of correct and incorrect guesses will be updated in **[this spreadsheet](https://docs.google.com/spreadsheets/u/1/d/1458kHgZ79lLF0FaLKj9pe_E1iIEcgMlEeJBoLZ5hXWk/edit?usp=drive_web&ouid=105546088462877019997)**

The deadline is [Thursday, May 9, 2 PM ET](https://arithmancy.ueuo.com/?d=20240509T1400&tz=-4&msg=Puzzle%201%20Deadline&font=Luxurious%20Roman)

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/05/07
19:17 UTC

1

May Announcements

Welcome back for the fifty-third month of r/Arithmancy! For those of you who are new, welcome to the Harry Potter puzzle subreddit where the students of Hogwarts are asked to work with their houses to decipher clues in order to practice their Arithmancy and curse-breaking skills.

Fill out this form if you would like to sign up for notifications when new puzzles or announcements are posted.

Puzzle Creators Wanted!

Are you interested in creating puzzles, but you don’t want to commit to joining the Arithmancy Professors? Check out our Prefect FAQs our Prefect Guide or our new Prefect Schedule!

Instructions for how to submit your puzzle can be found in the #links-and-resources channel on Discord.

If we choose your puzzle to use, you will be given a special Prefect role in Discord that allows you to talk to the professors while your puzzle is being solved, and to prevent you from helping your House during the puzzle. This is an awesome opportunity to test out being an Artificer without committing, too.

Feedback

We would like to hear your feedback about r/Arithmancy and your suggestions for making it better. Share your thoughts about the types and difficulty of puzzles, the hints system, the points system or anything else you think of below! What did you like about last month's puzzles? What did you dislike? Do you think changes should be made to make it more fun or fair for all houses? Comment below or use our anonymous feedback form.


May Schedule

The theme this month is: HP GoF!

Each level will last 48 hours and there will be a break between each level. The puzzles will be posted on r/Arithmancy and a link to the puzzle will be posted on Discord. The fourth puzzle each month is balanced for beginners, and isn’t worth points.

Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord.

There will be 4 levels this month:*

PuzzleStart TimeDeadline
Puzzle 1Tuesday, May 7, 2 PM EDTThursday, May 9, 2 PM EDT
Puzzle 2Monday, May 13, 8 PM EDTWednesday, May 15, 8 PM EDT
Puzzle 3Monday, May 20, 2 AM EDTWednesday, May 22, 2 AM EDT
Puzzle 4Sunday, May 26, 8 AM EDTTuesday, May 28, 8 AM EDT

*Schedule is subject to change.


How to participate

Puzzles should only be discussed in your house's Arithmancy Discord channel* and your house common room. If you would like to join your house’s common room, check here for instructions.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin (Note that you can only open these if you are a part of your house’s common room.)

A link to the submission form will be included with each puzzle posted. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

If you are caught breaking these rules, you will be removed from the game.

##Points

Here is the entirety of the points calculations as they stand:

Points will be awarded based on the speed of each house to solve each puzzle, and based on the number of hints they use to solve it. All 5 hints will be available for the duration of each puzzle, and for each hint they request, the hint bonus will be decreased accordingly:

  • 0 hints - 40 point bonus
  • 1 hint - 38 points
  • 2 hints - 35 points
  • 3 hints - 31 points
  • 4 hints - 26 points
  • 5 hints - 20 points

Houses will also be awarded a number of points based on how quickly they solve their puzzle as follows: an inverted sigmoid function, 5 / ( 1 + e^(10x/a-5) ) where a is the amount of time it took for the last house to solve the puzzle, will be used to calculate the bonus each house gets for their speed, relative to the speed of the other houses that solved. Here's a link to an interactive graph on Desmos, where you can see the resulting curve. This bonus has a maximum of 5 points.

There will also be a tiebreaker added to every score based on the order of who solves first. First place will earn 4 points, second: 3, third: 2, and fourth: 1 point.

Each house’s score will be calculated using Hint Bonus + Speed Bonus + Tiebreaker = Final Score

House points will be awarded at the end of the month, based on how many Arithmancy Points each house earned in total. House point calculations are based on the new proposal in HP Meta.

2 Comments
2024/05/03
23:38 UTC

1

Puzzle 3 Results - April 22, 2024

Puzzle 3 Results

Link to puzzle: https://redd.it/1c8goww

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for April

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 100440
Puzzle 246494841
Puzzle 3042430
Arithmancy Points469113541

Level Results

Speed bonus and Tiebreaker:

First - Hufflepuff - u/pezes (Solved in 19 hrs, 23 min) - 0 + 4 = 4 points

Second - Ravenclaw - u/su-yun (Solved in 20 hrs, 19 min) - 0 + 3 = 3 points

Guesses from each house:

Hufflepuff - 2 Correct, 0 Incorrect

Ravenclaw - 2 Correct, 0 Incorrect

Hint Bonus:

Hufflepuff - 1 hint - 38 points

Ravenclaw - 0 hints - 40 points

Solution

The answer was: >!Ron Weasley!<

Solution: Part 1 and 2: >!Solutions for parts 1 and 2 can be found here

Part 3: >!There are 7 columns, hinting at the seven days of the week. Sorting the dates by days of the week, oldest to most recent, the letters next to them will line up to read “fourteen inch willow unicorn hair who own“, which was Ron's second wand.!<

Countdown to Puzzle 4

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/04/22
13:44 UTC

1

Level Three- April 20, 2024

Level Three

“Setting dementors around a school,” she muttered, pushing back Harry’s hair and feeling his forehead. “He won’t be the last one who collapses. Yes, he’s all clammy. Terrible things, they are, and the effect they have on people who are already delicate —”

“I’m not delicate!” said Harry crossly.

Good luck and remember that the theme this month is HP and the PoA!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Monday, April 22, 12 AM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/04/20
04:02 UTC

1

Puzzle 2 Results - April 15, 2024

Puzzle 2 Results

Link to puzzle: https://redd.it/1c3dfnf

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for April

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 100440
Puzzle 246494841
Arithmancy Points46499241

Level Results

Speed bonus and Tiebreaker:

First - Hufflepuff - u/quirkychipmunk (Solved in 0 hrs, 46 min) - 5 + 4 = 9 points

Second - Ravenclaw - u/ShadowOfApollo (Solved in 1 hr, 40 min) - 5 + 3 = 8 points

Third - Gryffindor - u/Usual-Arugula1317 (Solved in 5 hrs, 7 min) - 4 + 2 = 6 points

Fourth - Slytherin - u/Dissendium (Solved in 12 hrs, 51 min) - 0 + 1 = 1 point

Guesses from each house:

Hufflepuff - 2 Correct, 0 Incorrect

Ravenclaw - 2 Correct, 0 Incorrect

Gryffindor - 1 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hint Bonus:

Hufflepuff - 0 hints - 40 points

Ravenclaw - 0 hints - 40 points

Gryffindor - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Solution

The answer was: >!Dissendium!<

Solution: Part 1: >!Googling the two people referenced gives you Ismail Mahomed and Florence Ribeiro. Further investigation leads you towards street names. These two streets intersect with a University Rd before they merge together. In the space between the three roads there is a park named Magnolia Dell. The riddle points towards a beautiful arch, which could also be a Crescent. The street where Harry is picked up by the Knight Bus in PoA is MAGNOLIA CRESCENT!<

Part 2: >!This is a basic cryptogram. Solving it gives you “The tiniest speech bubble had appeared next to his figure. The word inside said“ leading to the answer of DISSENDIUM!<

Countdown to Puzzle 3

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/04/17
03:32 UTC

1

Level Two- April 13, 2024

Level Two

“Promise me, Harry,” said Mr. Weasley, talking more quickly still, “that whatever happens —”

“Why would I go looking for someone I know wants to kill me?” said Harry blankly.

“Swear to me that whatever you might hear —”

Good luck and remember that the theme this month is HP and the PoA!


Hints will be given in the private channels on Discord upon request. Tag @hint if your house is stuck and needs a hint to proceed. All hint requests will be logged in the #room-of-requirehint channel on Discord. Using hints will decrease your house’s hint bonus.

Work with your house to solve this puzzle. Puzzles should only be discussed in your house's Arithmancy Discord channel.

Links to the Reddit threads with your house’s Discord invite link: Gryffindor, Hufflepuff, Ravenclaw, Slytherin. (Note that you can only open these if you are a part of your house’s common room.*)

* If you would like to join your house’s common room, check here for instructions.

All students may participate even if you have not yet joined a common room. If a discussion has not yet been started in your common room, feel free to start one.

The answer will be a word or phrase. Submit your answer using this Google form. Each student may submit only ONE guess per level and may have only one Reddit account used for participating. You may only submit for your own house.

Every FIVE guesses, the current number of correct and incorrect guesses will be updated in this spreadsheet

The deadline is Monday, April 15, 6 PM ET

See the stickied announcements post for the full schedule and details on the scoring system.

2 Comments
2024/04/13
22:01 UTC

1

Puzzle 1 Results - April 9, 2024

Puzzle 1 Results

Link to puzzle: https://redd.it/1by7yux

Link to puzzle feedback form: https://forms.gle/bpy44CMZ2ca3z4wy6

Current Points for April

LevelGryffindorHufflepuffRavenclawSlytherin
Puzzle 100440
Arithmancy Points00440

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/XanCanStand (Solved in 7 hrs, 2 min) - 0 + 4 = 4 points

Guesses from each house:

Ravenclaw - 3 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Solution

The answer was: >!Firebolt!<

Solution: Part 1: >!Morse code is hinted at by title and subtitle - Samuel Morse and di dah. The eighth notes (the shorter ones) are the dots and the dotted quarters/tied notes (the longer ones) are dashes. The notes that represent the dashes are three times as long as the ones that represent the dots (per the conventional lengths of morse). The notes translate to “Harry falls from his broom during a match against them“. This gives solution HUFFLEPUFF!<

Part 2: >!First step is to figure out the three letter words that go with each clue. Then, assigning each of those letters an order (i.e. 123) and using whatever order they are in the word to the right. for example BAD in BRIDGED gives 133. Then using that as triliteral cipher gives FIREBOLT!<

Countdown to Puzzle 2

Note: “Arithmancy Points” are not the same as House Points. House Points will be awarded at the end of the month based on the combined total of “Arithmancy Points” earned.

1 Comment
2024/04/09
22:59 UTC

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