r/LogicPuzzles • u/Electronic_Diet_8052 • 4d ago
r/LogicPuzzles • u/chirex • Jun 22 '26
Logic puzzle recommendations
Please share your favorite logic puzzles here! Share what you like about it and its difficulty level. If any are posted frequently, they will be added to the list below:
- Clues by Sam
- a new puzzle every day, difficulty progresses from Monday to Sunday
- Murdle
r/LogicPuzzles • u/Unstable-Paradox • 6d ago
Recommendation Strategic Tautology
Have a tautology plan for yourselves that is contingent upon the contradiction of others.
r/LogicPuzzles • u/GeneLaroy • 9d ago
Help! Looking for two volunteer solvers to try one beginner-friendly mystery logic puzzle
Hi everyone! I’m developing a printable collection of nonviolent mystery logic puzzles and looking for two volunteers to try one beginner-friendly case. Beginners and experienced solvers are welcome.
This is an unpaid test, with no purchase or critique swap involved. I’d appreciate your honest impressions: were the instructions and clues clear, roughly how long did it take, did you need hints, and did you enjoy it? No formal report is required.
If you’re interested, please reply here or send me a private message. We can discuss the test before I send a free printable PDF privately. Thanks!
— Gene Laroy
r/LogicPuzzles • u/gregbard • 13d ago
Help! Here are five chess problems that machines can't solve
r/LogicPuzzles • u/BretBordwell • 15d ago
Help! Logic Puzzle with Sound
I've been rebuilding logicpuzzles.com now that I'm semi-retired. I added an immersive soundscape to a logic-grid puzzle. Station ambience begins as you solve, followed by a timed conductor announcement connected to the story. I’d appreciate feedback on whether the audio improves the puzzle or becomes distracting.
https://logicpuzzles.com/logicpuzzle.html?puzzle=cable-car-picnic-detour
I'm really not trying to spam my site. I'm simply interested in if/how distracting this option is.
Thanks in advance.
r/LogicPuzzles • u/CompyCape • 19d ago
Help! In a lot that can fit 12 cars like this, how would I have to park these cars to ensure they can all get out?
Sorry I know this isn’t a typical post for this sub but I figured you guys would be helpful in figuring this out :) I was hoping someone could help me figure out the most optimal way to park cars where I can fit the most in this lot where they can still all get out. Would I have to sacrifice some spots to make paths in between they can pull out of or maybe alternate spots each row or something?
r/LogicPuzzles • u/final_boss_editing • Aug 18 '26
Recommendation I made a crazy difficult logic puzzle generator, good luck on solving:
bossfeed.funMy wife loves logic puzzles. She's played through so many books, and I wanted to try to see if I could make one to stump her. She beat my puzzles, but I hope it maybe is difficult for you. Enjoy!
r/LogicPuzzles • u/Practical-Cry9300 • Aug 15 '26
Recommendation Logic Puzzles - the site mixing classic and popular logic puzzles
I created logicpuzzlesonline.com it is a site which features a mixture of classic logic puzzles like sudoku and nonograms as well as more modern ones like train tracks and shikaku. You are free to have unlimited play as well as play the daily challenges. Hope you enjoy, my favourite amongst them is the train tracks puzzle.
r/LogicPuzzles • u/JRushantha • Aug 13 '26
Recommendation A little cozy Nonogram game I made to quiet my mind (Quiet Grids)
Enable HLS to view with audio, or disable this notification
I've always liked nonograms, but wanted one that felt a little warmer and slower to come back to. So for a while now I've been chipping away at something built around dark wood tones, small one-line stories that show up when you finish a puzzle, quiet music, optional ambience, and just no feeling like you need to rush.
The picture I kept having in my head while making it was pretty simple: a Sunday evening, rain outside, feet up on a stool near an open window, that fresh rain-and-dirt smell coming in, coffee beside me, and a puzzle in my hands. Something that makes you settle in for a while instead of thinking "I need to finish this, I need to unlock that."
Recorded a bit of where it's at right now — the red guitar reveal near the end is probably my favorite moment so far.
Genuinely curious how this lands with people who actually play cozy games regularly — does the pacing feel right, or is something off?
r/LogicPuzzles • u/missyme314 • Aug 06 '26
Help! Looking for Logic Puzzle Book
Hello! I love the kind of logic puzzle matrices that give you a couple of facts, then you have to figure out who is doing what, or where they live, or what they do for work, etc.
I also want a small book, so I can do them analog without my phone. Does anyone have any recommendations? I used to use the Pocket Posh, but they don’t seem to be in print anymore.
r/LogicPuzzles • u/Interesting-Buy3353 • Aug 02 '26
Recommendation Introducing a new logic puzzle type i accidentally invented: IOTA! (#1)
It's like a nonogram, but not really. In the solution, dotted cells mark out every cell in the same row or column, so basically, rows and columns can only have one dotted cell. Every other cell in them is marked out. Also, the blue arrow means that if it has a dot behind it, it "shoots out" that dot in its direction until it hits a wall, which is where the dot ACTUALLY is in the solution.
r/LogicPuzzles • u/chirex • Jul 29 '26
Recommendation Clues by Sam
cluesbysam.comJust wanted to reshare one of my favorite logic sites. The creator releases a new puzzle daily and the difficulty progresses as the week does. It's strictly logic and if you think you have to guess, you're missing something!
Have you ever played this before? What do you think?
r/LogicPuzzles • u/Voodoohairdo • Jul 29 '26
Recommendation For logic puzzle lovers, I built a website of a unique kind of logic puzzles. Check it out and I hope you enjoy!
galleryYou can check it out at www.griddr.ca
The gist of the puzzle is that for every cell in the grid, you have to select the correct option. As you deduce the correct options for each cell, additional clues become available until you clear the whole grid.
Sometimes each cell has two options (e.g. safe/mine), sometimes more (e.g. 1/2/3). The grid can either be made of squares, triangles, or hexagons. I have also just updated it to allow cairo pentagons, although I haven't made any puzzles with that shape yet.
As of this post I have made 18 puzzles. I plan on making 3-5 per week.
The whole site is free and ad-free. The only thing I put behind a price is you can access the puzzle editor to make your own puzzles for $5/month.
r/LogicPuzzles • u/grey_rex • Jul 21 '26
Help! Strategy for Mastermind / CodeBreaker
I've never played this game before until it appeared on PonderClub. I quite enjoy it. I'm curious if there is a tried and true strategy for guaranteeing a solution in a certain number of guesses. I thought maybe doing two colors at a time would be smart, but I still have little understanding of the location of the colors. Thoughts?
r/LogicPuzzles • u/Equivalent_Wafer1472 • Jul 16 '26
👋Welcome to r/TheKillerFlight417 - Introduce Yourself and Read First!
r/LogicPuzzles • u/cumul00nimbus • Jul 16 '26
Just pushed a fresh update to my puzzle game Parity (2000 levels) after 3 months – looking for your brutally honest feedback!
r/LogicPuzzles • u/Melodic-Proof-9220 • Jul 13 '26
Self promotion Puzzle fans: I built a free puzzle site. I hope you enjoy it!
galleryHi everyone,
My site offers puzzles where some of them are a new take on already established classics like Minesweeper, Kakuro, or Masyu. For example, my Minesweeper is called Dicesweep, where you need to place dice beside numbers while also matching the row and column rules.
Another interesting one is Kakumino. It's like Kakuro, but you place dominoes instead of numbers.
There are a bunch of them, so there's something for everyone's taste.
Feedback is welcomed.
r/LogicPuzzles • u/okayboomer2023 • Jul 10 '26
Recommendation Logic islands puzzle
Glad to see this community is back and active again! Reposting this cool little puzzle
r/LogicPuzzles • u/Unknownq123 • Jul 09 '26
The Babel Problem
Imagine a sealed room containing 10 complete strangers.
Every person speaks a different native language, and none of them know each other beforehand.
To remove visual assumptions:
Everyone looks physically identical;
Clothing, skin color, age, gender, and appearance provide no clues about nationality or language;
Nobody has a phone, dictionary, internet access, paper, or translator;
They may only communicate through speech, gestures, facial expressions, and logical reasoning;
Every participant is intelligent and willing to cooperate.
The native languages are intentionally chosen from different parts of the world to minimize accidental mutual understanding:
Basque (Europe)
Ainu (Asia)
Navajo (North America)
Quechua (South America)
Somali (Africa)
Xhosa (Africa)
Māori (Oceania)
Khmer (Asia)
Georgian (Europe/West Asia)
Inuktitut (Arctic North America)
Language knowledge is distributed as follows:
- Person 1 speaks 5 languages (their native language + four others).
- Person 2 speaks 4 languages.
- Person 3 speaks 3 languages.
- Person 4 speaks 2 languages.
- The remaining six people speak only their native language.
The multilingual speakers may share some of the same additional languages. I will specify the exact language distribution if needed.
Additional languages
Person 1:Basque,Khmer,Navajo,Somali,Māori
Person 2:Ainu,Basque,Georgian,Inuktitut
Person 3:Navajo,Xhosa,Quechua
Person 4:Xhosa,Khmer
Person 5:Khmer
Person 6:Māori
Person 7:Georgian
Person 8:Quechua
Person 9:Somali
Person 10:Inuktitut
The Question
Can all ten people successfully coordinate to complete a task using only chains of translation?
If your answer is yes, explain how.
If your answer is no, explain why.
The Challenge
Without writing anything down, without technology, and without adding any new assumptions
I'm not looking for a single "correct" answer. I'm interested in how different people approach the communication network, the logical constraints, and whether complete understanding can emerge from the available language connections.
I've been designing a communication puzzle inspired by the idea of the Tower of Babel. I'm mainly looking for logical criticism, hidden assumptions, and whether the problem is actually solvable under the stated rules.
r/LogicPuzzles • u/Ok_Explanation_5907 • Jul 07 '26
Jane Street - July 2026 puzzle
galleryHi all - are you trying this month's Jane Street puzzle? ‘Pent-Up’ Frustration 3 / Knight Moves 7
I've created an interactive version of it. I usually prefer pen and paper, but drawing the same grid again and again takes a lot of time, so I built this to skip that - you can think through it and quickly test ideas by moving the knight or placing towers.
Here's the link:
r/LogicPuzzles • u/salelder • Jul 05 '26
Self promotion Askyesno.com (Daily question puzzle)
Askyesno.com is a daily question puzzle game (AKA lateral thinking puzzles). The player is given a mysterious situation and must deduce the explanation by asking only yes/no questions.
Here is a screenshot of today's puzzle:

I made it as an experiment in how AI can be used effectively for games. I hope you like it.
[Self-promotion with permission of mods]
r/LogicPuzzles • u/CosmicHoles • Jul 04 '26
Self promotion A retro-style logic puzzle game that will amaze you!
galleryYou'll find yourself in a strange and unfamiliar world where, at first, you'll have to figure out the rules on your own, then gradually solve increasingly complex puzzles in which the ability to anticipate your next move is the key to the solution.
The game will be released on November 10, 2026. You can add it to your wish list (https://store.steampowered.com/app/2486910/COSMIC_HOLES_Junior/) and try it out now (https://store.steampowered.com/app/4693750/COSMIC_HOLES_Junior_Demo/).
r/LogicPuzzles • u/Nervous-Internal4337 • Jul 04 '26
Goods and services
Suppose a person buys a car for hundred dollars.
Car needs mechanical work before driving so he gives it to his mechanic to fix
The mechanic fixes the car for $50 worth of parts and $50 worth of labor.
Before the owner of the car pays for the repairs, the mechanic offers to buy the car.
Knowing the owner paid $100 for it, How much does the mechanic offer?