Level 2

““Now, don’t forget that nice wrist movement we’ve been practicing!” squeaked Professor Flitwick, perched on top of his pile of books as usual. “Swish and flick, remember, swish and flick. And saying the magic words properly is very important, too — never forget Wizard Baruffio, who said ‘s’ instead of ‘f and found himself on the floor with a buffalo on his chest.””

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

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

The deadline is Monday, July 20, 4 PM EDT

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

Puzzle 1 Results

Link to puzzle: https://www.reddit.com/r/Arithmancy/s/vX6pjlsI7N

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

Current Points for July

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 1 hr, 6 min) - 1 ＋ 4 = 5 points

Second - Slytherin - u/29925001838369 (Solved in 1 hr, 43 min) - 0 ＋ 3 = 3 points

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Solution

The answer was: Flagrate

Solution: Part 1: Each nonsense phrase is the name of a character (like the game Mad Gab). After finding the list of names, index the order into each. Final answer: Descendo

Part 2: this puzzle uses Tom Lehrer's song “The Elements“. The numbers correspond to the order of the elements in the song. Keeping the abbreviations gives: AcHArMoFFIErYSKrIPt which is meant to clue Flagrate

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.

Level 1

““Anything else?” he said.

“Yes,” said Harry, tearing his eyes away from the dog’s and dazedly consulting his booklist. “Er — I need Intermediate Transfiguration and The Standard Book of Spells, Grade Three.”

Harry emerged from Flourish and Blotts ten minutes later with his new books under his arms and made his way back to the Leaky Cauldron, hardly noticing where he was going and bumping into several people.”

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

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

The deadline is Tuesday, July 14, 10 AM EDT

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

Puzzle 3 Results

Link to puzzle: https://www.reddit.com/r/Arithmancy/s/EzEyL5ktL1

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

Current Points for May

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/TrajectoryAgreement (Solved in 1 hr, 3 min) - 0 ＋ 4 = 4 points

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Solution

The answer was: Dumbledore

Solution: Part 1: Languages the text is written in's initials spell out 'quibbler'. The capitals of the countries whose call codes are listed make up the encrypted string that gets decrypted with the quibbler key in vigenere. Final answer: Emmeline (Vance)

Part 2: Solve the maze. Markings along the solution path that fall in the 2x3 grey areas make Braille. In the order they are reached in the path spells 'The founder of the order'

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 May

Level 3

“Shacklebolt and Sturgis Podmore were examining the microwave and Hestia Jones was laughing at a potato peeler she had come across while rummaging in the drawers.”

Good luck and remember that the theme this month is Order of the Phoenix!

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

The deadline is Saturday, May 30, 9 AM EDT

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

Puzzle 2 Results

Link to puzzle: https://www.reddit.com/r/Arithmancy/comments/1tidusr/level_2_may_20_2026/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

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

Current Points for May

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/ShadowOfApollo (Solved in 37 hrs, 31 min) - 0 ＋ 4 = 4 points

Guesses from each house:

Ravenclaw - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 1 hint - 38 points

Solution

The answer was: Mad-Eye

Solution: Part 1: Follow the line from one letter to a corresponding letter and shift the first letter by the second. You can use Vigenere to do this or calculate the distance forward in the alphabet and then use a0z25. The shifted letters anagram to 'Arabella Figg'

Part 2: The words in the chart are colors in different languages. Translate the colors then use hexahue to get 'MADEYE'

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.

Level 2

“The three of them looked cautiously over the banisters. The gloomy hallway below was packed with witches and wizards, including all of Harry’s guard. They were whispering excitedly together. In the very center of the group Harry saw the dark, greasy-haired head and prominent nose of his least favorite teacher at Hogwarts, Professor Snape. Harry leaned farther over the banisters. He was very interested in what Snape was doing for the Order of the Phoenix. . .”

Good luck and remember that the theme this month is Order of the Phoenix!

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, May 22, 3 AM EDT|

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

Puzzle 1 Results

Link to puzzle: https://www.reddit.com/r/Arithmancy/comments/1tcis67/level_1_may_13_2026/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

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

Current Points for May

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 13 hrs, 20 min) - 4 ＋ 4 = 8 points

Second - Slytherin - u/Neeshky (Solved in 44 hrs, 7 min) - 0 ＋ 3 = 3 points

Guesses from each house:

Ravenclaw - 1 Correct, 0 Incorrect

Slytherin - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Slytherin - 2 hints - 35 points

Solution

The answer was: Frank and Alice Longbottom

Solution: Part 1: First extract the bolded numbers and slashes to get 16/8/15/5/14/9/24 which gives Phoenix. Then go back to the same string and skip count by 2 to get 22/25/23/17/26/9/18/1/11/4/16/14/11/2 which gives the string Vywqzirakdpnkb. Then using Phoenix as the key, use Vigenere to decipher the text string to get 'Grimmauld Place'

Part 2: Designed to look like an unknown cipher, these are really just ideograms (dots, circles, and lines). These give 20 15 18 20 21 18 5 4 20 15 9 14 19 1 14 9 20 25 2 25 2 5 12 12 1 20 18 9 24 which is 'Tortured to insanity by Bellatrix'. This refers to Neville's parents Frank and Alice Longbottom.

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.

# Level 1

• ““Yeah?” said Harry, raising his eyebrows. “Have either of you been attacked by dementors this summer?”
• “Well, no — but that’s why he’s had people from the [Order](https://arithmancy.ueuo.com/order) of the Phoenix tailing you all the time — ”
• Harry felt a great jolt in his guts as though he had just missed a step going downstairs. So everyone had known he was being followed except him.”

Good luck and remember that the theme this month is **Order of the Phoenix**!

-----

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 [Friday, May 15, 9 PM EDT](http://arithmancy.ueuo.com/?d=20260515T2100&tz=-4&msg=Puzzle%201%20Deadline&font=Luxurious%20Roman|

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

Puzzle 3 Results (BETTER LATE THAN NEVER)

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

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

Current Points for April

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 39 hrs, 7 min) - 0 ＋ 4 = 4 points

Guesses from each house:

Ravenclaw - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Solution

The answer was: Atrium

Solution: Part 1: Follow the branch path to each flower and use morse code (left for dot and right for dash) to get 'Level five department' Which is the department of International Magical Cooperation

Part 2: Take the first letter of each language/cipher. Order them by alphabetizing the translated/ciphered phrase to get 'Wizengamot'

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 April

Welcome back for the sixty-seventh 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: Order of the Phoenix!

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 3 levels this month:*

*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.

Level 3

“Jostled slightly by the crowd, Harry followed Mr. Weasley through the gates into the smaller hall beyond, where at least twenty lifts stood behind wrought golden grilles. Harry and Mr. Weasley joined the crowd around one of them. A big, bearded wizard holding a large cardboard box stood nearby. The box was emitting rasping noises.”

Good luck and remember that the theme this month is Ministry of Magic Departments!

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, April 25, 8 AM EDT|

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

Puzzle 2 Results

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

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

Current Points for April

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in -1 hrs, -51 min) - 0 ＋ 4 = 4 points

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Solution

The answer was: Atrium

Solution: Part 1: hours are the order, minutes are a1z26 for 'Perkins department

Part 2: It's Rosicrucian cipher that just goes in a spiral so you turn 90 degrees right every time you get to a red. You will get “CHAMBEROFPULSEFLOOR“ which leads to the Atrium

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.

Level 2

“Just Interdepartmental memos,” Mr. Weasley muttered to him. “We used to use owls, but the mess was unbelievable . . . droppings all over the desks . . .”

Good luck and remember that the theme this month is Ministry of Magic Departments!

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 Sunday, April 19, 2 AM ET

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

Puzzle 1 Results

Link to puzzle: https://www.reddit.com/r/Arithmancy/comments/1si3hrh/level_1_april_10_2026/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

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

Current Points for April

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 29 hrs, 43 min) - 0 ＋ 4 = 4 points

Guesses from each house:

Ravenclaw - 1 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Solution

The answer was: Floo Network Authority

Solution: Part 1: Use Friderici Window cipher to encode text. Keeping arrangment of the letters, you get a grid that creates a QR code. When scanned, the QR code gives 'Department of Mysteries'

Part 2: Each of the 13 cards per suit corresponds to one of the 13 notes in an octave (including half-steps). The order of the suits is spades-diamonds-clubs-hearts. Note length is designated by card size - i.e. the smaller cards are eighth notes. Then use the music sheet cipher found here: https://www.dcode.fr/music-sheet-cipher to get Floo Network Authority.

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.

Level 1

The farther they walked, the smaller and less imposing the buildings became, until finally they reached a street that contained several rather shabby-looking offices, a pub, and an overflowing dumpster. Harry had expected a rather more impressive location for the Ministry of Magic.

“Here we are,” said Mr. Weasley brightly, pointing at an old red telephone box, which was missing several panes of glass and stood before a heavily graffittied wall. “After you, Harry.”

Good luck and remember that the theme this month is Ministry of Magic Departments!

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 Sunday, April 12, 8 PM ET

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

Welcome back for the sixty-sixth 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.

April Schedule

The theme this month is: Ministry of Magic Departments!

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 3 levels this month:*

*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.

Puzzle 3 Results

Link to puzzle: https://redd.it/1rc9jto

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

Current Points for February

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 0 hrs, 36 min) - 5 ＋ 4 = 9 points

Second - Slytherin - u/29925001838369 (Solved in 2 hrs, 10 min) - 5 ＋ 3 = 8 points

Third - Hufflepuff - u/eburos87 (Solved in 33 hrs, 20 min) - 1 ＋ 2 = 3 points

Fourth - Gryffindor - u/Usual-Arugula1317 (Solved in 47 hrs, 22 min) - 0 ＋ 1 = 1 point

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hufflepuff - 4 Correct, 0 Incorrect

Gryffindor - 1 Correct, 1 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Hufflepuff - 0 hints - 40 points

Gryffindor - 2 hints - 35 points

Solution

The answer was: Reginald Cattermole

Solution: Part 1: Spot the difference between the grids, then find the midpoints between those letters to get 'Shacklebolt'

Part 2: Find the rank and sport of each athlete in the 2026 Winter Olympics. Then index their rank into their sport to get Reg Cattermole

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 February

Level 3

“Don’t be silly, Dawlish,” said Dumbledore kindly. “I’m sure you are an excellent Auror, I seem to remember that you achieved ‘Outstanding’ in all your N.E.W.T.s, but if you attempt to — er — ‘bring me in’ by force, I will have to hurt you.”

Good luck and remember that the theme this month is Ministry of Magic Employees!

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, February 25, 1 AM ET

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

Puzzle 2 Results

Link to puzzle: https://redd.it/1r6qfwj

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

Current Points for February

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/ShadowOfApollo (Solved in 0 hrs, 20 min) - 5 ＋ 4 = 9 points

Second - Slytherin - u/CuriousChurro_2005 (Solved in 15 hrs, 9 min) - 0 ＋ 3 = 3 points

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Slytherin - 3 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - 0 hints - 40 points

Slytherin - 0 hints - 40 points

Solution

The answer was: Dirk Cresswell

Solution: Part 1: Flavor indicates bullpen puzzle in which you solve so that each row, column, and “pen” has one bull. Bulls cannot be in adjacent cells (on sides or diagonally). The bull placements of the solved puzzle give the scrambled letters for Scrimgeour.

Part 2: Title and description point to 7-segment display. Notes are grouped by slur markings (the curved lines) to indicate each new number for display. The rests show where to put spaces between numbers. So, the first few are bcfg abcdfg bc-abcdefg which give 4 9 18. After a1z26 it spells out Dirk Cresswell

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.

Level 2

“He’s retired, used to work at the Ministry,” said Charlie. “I met him once when Dad took me into work with him. He was an Auror — one of the best . . . a Dark wizard catcher,” he added, seeing Harry’s blank look.

Good luck and remember that the theme this month is Ministry of Magic Employees!

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, February 18, 6 PM ET

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

Puzzle 1 Results

Link to puzzle: https://redd.it/1p1mswz

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

Current Points for February

Level Results

Speed bonus and Tiebreaker:

First - Ravenclaw - u/stepsword (Solved in 0 hrs, 28 min) - 5 ＋ 4 = 9 points

Second - Hufflepuff - u/eburos87 (Solved in 0 hrs, 56 min) - 5 ＋ 3 = 8 points

Third - Gryffindor - u/Usual-Arugula1317 (Solved in 47 hrs, 38 min) - 0 ＋ 2 = 2 points

Fourth - Slytherin - u/AllThingsDark (Solved in 47 hrs, 52 min) - 0 ＋ 1 = 1 point

Guesses from each house:

Ravenclaw - 2 Correct, 0 Incorrect

Hufflepuff - 4 Correct, 0 Incorrect

Gryffindor - 1 Correct, 0 Incorrect

Slytherin - 2 Correct, 0 Incorrect

Hint Bonus:

Ravenclaw - hints - 40 points

Hufflepuff - hints - 40 points

Gryffindor - 2 hints - 35 points

Slytherin - 2 hints - 35 points

Solution

The answer was: Amelia Bones

Solution: Part 1: Each section is a word ladder, the four letter words change by one letter each time. Use the letters that changed to get 'the toad face'. The answer is 'Dolores Umbridge'.

Part 2: The flavour mentions 'jetlag', if you work out the time differences between each location (it's February for the DST places) and then shift the bolded 'A' in the flavour forwards and backwards by the time zone jumps accordingly, you got 'AmeliaBones'

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.

Level 1

“Enjoying it?” said Ron darkly. “I don’t reckon he’d come home if Dad didn’t make him. He’s obsessed. Just don’t get him onto the subject of his boss. According to Mr. Crouch . . . as I was saying to Mr. Crouch . . . Mr. Crouch is of the opinion . . . Mr. Crouch was telling me . . . They’ll be announcing their engagement any day now.”

Good luck and remember that the theme this month is ministry of Magic Employees!

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, February 12, 1 PM ET

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

Welcome back for the sixty-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.

February Schedule

The theme this month is: Ministry of Magic Employees!

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 3 levels this month:*

*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.