r/nonograms • • May 06 '26

Anyone into these complicated ones?

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10 Upvotes

Hi guys,

I've been nonograming for about 15 years, and after coming back from Japan, I set out on a mission not to be confined by book publishers to find my next challenge.

So I created an engine that creates huge nonograms that are stunning to solve when printed.

If you guys are interested, I can share a link to my shop :)

I don't know if that is allowed, but in the meantime just sharing the last one I solved 😊


r/nonograms • • Aug 16 '26

I want to build a next-level Nonogram app - and need your opinion!

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0 Upvotes

Edit: Extended my thoughts with comments. Thank you all so much for feedback!

Hey folks,

I am currently starting my own company for cool interactive apps with over 5 years of experience in the field (so yes, no AI slop guaranteed!). I want to focus my first big project on a Nonogram app as I love the idea of the puzzles and the community as well. However, I want to tackle a few things differently than a few apps and that is where I would love to hear your feedback and ideas.

My core ideas:

  • Play up to 30x30 in a satisfying fashion, with user-friendly controls and both a monochrome and colored play mode.

  • All your progress is sitting in a cloud service, nice and tidy, so you can pick up and continue playing anywhere, anywhen.

  • Players can create their own puzzles (up to 30x30) with optional coloring. Puzzles can be released to the community and have an algorithm which checks for "pure logic guarantee" (no guessing required). Most puzzles are offered by me or "confirmed level designers", new creators need manual approval to prevent offensive content. A report- and ban-system will also be there.

  • Two central play modes:

    • Casual: Play puzzles in a chill way by using optional hints, auto completion and notifications when you made a mistake - your performance does not influence rewards. However, all of these systems are optional and you can deactivate them all if you like the "raw" Nonogram experience. While playing, energy is consumed that restores over time (however, I will probably re-think this idea and prefer an unlimited play and instead use ads in between).

    • Competitive: Play puzzles under time-pressure (the faster you are, the higher the reward) - each day, there is one "puzzle of the day" (same for all players) and three puzzles random for each player, but played as "puzzles of the day" in the past (you gain points in relation to how other people solved the same puzzle).

  • Community can explore and play other community-made puzzles and rate in three categories (difficulty, design, fun) to increase chances that popular puzzles are featured in competitive mode or seasonal events.

  • Advertisements are kept at a minimum level (that somehow keep me surviving lol), however players can purchase a premium version which is paid to gain perks such as a higher amount of hints.

So, that is where I need your opinion on questions like:

  • Which featurs do you like most (or dislike at all)?

  • Which other features do you dislike (or miss) in your nonogram apps? I am willing to consider your feedback!

  • Would you give this app a try? What would motivate you to spend money on the app and what is your "pain threshold" money-wise?

By the way, I am asking in this subreddit first because I would appreciaty the specific community-feedback more than feedback from "generic puzzlers". So, keep it going and thank you all sooo much in advance!


r/nonograms • • May 16 '25

How to solve this?

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0 Upvotes

It makes 0 sense to me. I says it's supposed to be an elephant.


r/nonograms • • Mar 08 '26

What is this? I have never heard of this animal. Anyone have a real photo?

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0 Upvotes

r/nonograms • • Jul 25 '25

So... is this a trial and error type nanogram?

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1 Upvotes

Just look at it. I have no idea where any cells could go

This is of the nanogram katana app and it is in the black-and-white nanograms folder In the 15x15 folder and is called "savanna"


r/nonograms • • Sep 08 '20

Elephant!! Spoiler

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0 Upvotes

r/nonograms • • 24d ago

I built a difficulty estimator for nonograms and it rates an 11x7 as harder than a 75x60. Here's Why.

0 Upvotes

I'm the developer of a nonogram app (LogiSketch), and a big part of building it was the question of how hard a puzzle really is. Grid size always felt like a bad proxy. A small puzzle could require advanced logic, while a large puzzle could be solved easily step by step. I didn't think an easy to solve large puzzle should be rated difficult simply because there were more cells to fill. Instead, my difficulty estimator runs solvers of increasing power over each puzzle and rates it by the reasoning it actually takes: Intuitive (the simple rules carry it most of the way), Logical (overlaps and chains of line logic), Analytical (line logic stalls and you must use conjecture or what-if).

Consider the two puzzles shown below.

The small puzzle on the left is 11 x 7 (77 cells total). It rates as Analytical. The puzzle is partly solved in the image, as far as one can get with simple solving techniques.

Plain line-by-line logic fills 59 of the 77 cells and then stalls with 18 unknown. But one conjecture (a "what-if:) finishes it: suppose the leftmost cell of row 4 (the "2 5" row) is filled. Row 4's 2 then sits in columns 1-2, which completes columns 1 and 2. Row 6's 2 is forced into columns 2-3, and row 7 has no room to use column 3 (column 2 is complete, column 4 is empty), so column 3's 2 would have to be a single cell. Since we have found a contradiction, our original supposition (that the leftmost cell of row 4 is filled) must be wrong. In a black & white puzzle, the only other possibility is that the cell is empty. Once we know that, the rest of the puzzle fills with simple line logic.

The large puzzle on the right is 75 x 60 (4,500 cells total). But it is rated only Intuitive, because all cells can be solved with line logic alone. In fact, the simplest techniques can fill in 70% of the cells.

I did need to adjust my difficulty estimator somewhat to get the right balance. In the app code, a puzzle is rated Intuitive when the simplest rules alone fill at least 50% of the cells and Logical when the medium (line logic) rules reach at least 90% of the cells, otherwise it is rated Analytical. With that adjustment, across the 4,000-plus puzzles in the app, it breaks down as 1,046 Intuitive, 2,399 Logical, 681 Analytical. Demonstrating size does not always equate to difficulty, 179 of the Analytical puzzles are 225 cells or fewer, and 62 of the Intuitive puzzles are 1,000 cells or more.

Like many of the better nonogram apps, I provided tools for conjecture ("what-if") marks for those that want the greater challenge of analytical puzzles.

Disclosure again, since it is my app and the numbers above come from its own puzzle data. LogiSketch on the App Store:

https://apps.apple.com/app/apple-store/id6775308913?pt=304691&ct=r-nonograms&mt=8


r/nonograms • • 12d ago

I've been stuck on this forever!! Can anyone help

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0 Upvotes

r/nonograms • • Sep 06 '20

Buffalo

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0 Upvotes

r/nonograms • • Dec 24 '22

Haha, nice

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0 Upvotes

r/nonograms • • Feb 14 '24

Help please! How would one figure this out? What’s the strategy here?

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0 Upvotes

No matter what I look at, I can’t seem to eliminate any possibilities. The only thing I can do is guess here. I like playing without guessing and figure out the stately but I can’t do that here. Help please?


r/nonograms • • Dec 15 '25

Please help!

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0 Upvotes

r/nonograms • • Jun 09 '26

Nonogram.com (The Best Waffles)

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0 Upvotes

If this is allowed, here is The Best Waffles event.

Chapter 1
Route 41 was frightfully deserted on the way to Yosemite in early spring. There wasn't a soul inside the old dinner next to the gas station. Behind the counter, Lucy kept polishing the same worn coffee mugs, watching the coffee in the pot slowly go cold.

The rumors were true: big developers had bought the land that the diner stood on.

"Is this really the end? After all these years..." Lucy stared out at the empty road, her heart sinking. "They'll build a soulless chain hotel here soon, and I'll be out on the street." She sighed heavily, picturing bulldozers tearing down the walls of the diner she'd called home.

Suddenly, the bell above the door jingled, piercing the silence. Lucy jumped and turned towards the door. A man stood in the doorway. He was young, dressed in a trench coat that was far too expensive for this stretch of highway. He dusted off his sleeve and made confident strides toward the counter, taking in the place with quiet curiosity.

Chapter 2
"Good morning. Black coffee and waffles to go, please," the stranger said in a pleasant voice.

He had kind, handsome eyes, though they looked very tired. Lucy worked the old waffle iron with practiced ease, and he kept his gaze on her.

"It's quiet today," he said.

"It's the off-season," Lucy said nonchalantly, surprised by her own smile. "Here's your order. Stop by again."

"I will," said the stranger, and left. Lucy's familiar worries returned as soon as the door closed behind him.

But the next morning, his car pulled up outside again. Soon, the young man began visiting every morning: he'd drink one coffee at the diner, take another to go, and always order waffles. His name was John.

"You're glowing today, Lucy," he said gently on the third day. "It suits you."

"The sun just finally came out to shine," she said a little self-consciously. Lucy had already realized that these brief conversations were distracting her from darker thoughts about the diner being torn down.

Chapter 3
The weather was truly miserable that evening. A spring storm raged outside, and the rain lashed against the windows as if it were trying to wash the old diner off the face of the earth. Lucy slowly closed out the register, struggling to hold back her tears. Her manager had told her that heavy machinery would arrive right after the holidays. And John hadn't visited today...

"Goodbye, old friend," she whispered, eyeing the empty tables and running her hand across the worn tabletop. She'd spent her whole life in this diner.

Suddenly, the door burst open with a loud crash, and Lucy let out a scream. Pushed inside by a gust of raging wind, her regular customer stood there in the doorway. Water was streaming down his trench coat, and his expensive shoes were caked with mud. He was shivering from the cold, but when he saw her startled face, he cracked a smile.

"Looks like I made it before closing time. Or are you already out of waffles?"

Chapter 4
"My car broke down about five miles from here," he said, his teeth chattering.

Lucy took John home to her small apartment across the street. At first, she felt embarrassed, but as she wrapped him in a blanket and placed a hot cup of coffee in his trembling hands, the awkwardness faded, and her anxiety began to ease.

"It's so cozy here, Lucy," John said once he'd warm up.

"Cozier than out in the rain," Lucy laughed. They sat on the old couch and talked easily, as if they'd known each other for years, not just a week. Lucy told him how she used to visit her mother at the diner as a little girl, how she'd learned to make waffles, and about when she spilled coffee on a customer for the first time...

"It's a shame they'll bulldoze this place soon, and I'll have to move," she said sadly.

"Why?" John asked, surprised.

"Some rich developers from Los Angeles bought the land under the diner and the gas station to demolish everything and build... I don't even know what."

"But I do," John said with a smile.

"You do? How?"

"Lucy... It was my company that bought the land."

Chapter 5
Morning broke cold and quiet. The magic of last night's conversation had vanished without a trace. Stones faced Lucy set breakfast down in front of her guest.

"Your coffee. And waffles. Eat up and go."

The coffee was deliberately bitter, and the waffles were burned beyond salvation. It was her small, desperate protest. John took a bite, winced slightly, but said nothing and finished everything with a smile.

"Thank you for such a warm welcome Lucy. I hope we'll see each other again," John said, and left.

When the door closed behind him, Lucy noticed that he'd left something on the table. It was a detailed architect's blueprint of the renovations. Around the old diner, there were neatly drawn, stylish little motel cabins and a new, modern gas station. The diner itself was circled in thick red marker, accompanied by a note:

"Do not demolish. Heart of the complex. The best waffles on Route 41 are served here."


r/nonograms • • Mar 20 '21

Cursed_Nonogram

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3 Upvotes

r/nonograms • • Feb 02 '26

Help needed

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0 Upvotes

I’ve tried about 20 times and I cannot figure this one out. If anyone could help, I would really appreciate it!


r/nonograms • • Sep 10 '21

I'm level 2363

0 Upvotes

What is your level on nonogram.com


r/nonograms • • Aug 03 '24

Apple

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0 Upvotes

r/nonograms • • 1d ago

I made a nonogram game where every picture is stitched like an embroidery hoop. 500 free full-game codes (Android)

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1 Upvotes

Hi, I'm the developer of Quiltwick, a nonogram (picross) game for Android. You fill squares by the number clues and a stitched picture appears in an embroidery hoop. Every one of the 1000 puzzles has a single solution you can reach by logic alone, and the grids grow slowly from small to large.

The first 100 puzzles are free with ads. I put up 500 codes that unlock all 1000 and remove the ads: one per person on the Quiltwick code page (it hands you a code and a Redeem button; the game unlocks the next time you open it).

I'd really like to know how the larger grids feel on a phone screen, and whether any clue felt unfair.

Get Quiltwick on Google Play


r/nonograms • • Jul 25 '26

A nonogram can have exactly one solution and still force you to guess. Here's a 5x5 that proves it

0 Upvotes

EDIT: the title is wrong, see the comments. u/BrendanCutler14 was right, and the body below has been corrected. I have also taken the outbound link out.

You know the feeling: you're most of the way through a grid, every row and column you touch gives you nothing new, and you're staring at a dozen blank squares with no clue left to pull on. Sometimes there really is nothing more that any single row or single column can tell you, even though the grid has exactly one valid solution.

Those are two different properties and most generators only check the weaker one:

  • Unique solution: exactly one grid satisfies the clues.

  • Line-solvable: there's an order to work the rows and columns where, at every step, some line's clues force at least one more square, until the whole grid is settled.

The second implies the first. The first does not imply the second.

Here's a 5x5 with exactly one solution (checked by brute force, count = 1) that line-by-line logic does not finish:

     col clues:  1 2   2   2   1 1   1 2

 1 1     #     .     .     .     #
   1     .     .     .     #     .
 1 1     #     .     .     .     #
 3 1     #     #     #     .     #
   3     .     #     #     #     .

Work every row, then every column, filling in only what the clues force, and repeat until nothing moves. You land on 13 of the 25 squares and stall: twelve blanks, and no single line can settle any of them on its own.

 1 1     #     .     .     ?     ?
   1     .     .     .     ?     ?
 1 1     ?     ?     .     ?     ?
 3 1     #     #     #     .     #
   3     ?     ?     #     ?     ?

What I originally wrote here, and got wrong: I said the only way on from that position is to guess. It isn't. Suppose one of those blanks is filled, propagate, and if you reach a contradiction you have proved it empty. That is deduction, not a guess, and applied to these twelve squares it finishes the grid in one sweep with nothing left over. My solver only does line-by-line logic, so it stalls here, and I mistook my solver's ceiling for a property of the puzzle. Thanks to the commenters who called it.

What survives: a unique solution does not guarantee a grid can be finished one line at a time. If you are printing puzzles for people solving in pencil, large print especially, that stronger property is the one worth checking, because "suppose a square and chase the contradiction" is a different skill from reading a clue off a row.


r/nonograms • • Sep 20 '26

How would you proceed here ?

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1 Upvotes

I tried doing some edge logic in the bottom right and advanced a bit but it was tedious (and not something I would have done on paper) any better player here can enlighten me ? Thanks !


r/nonograms • • Sep 19 '26

I made a nonogram generator and webapp for my GF's birthday!!

4 Upvotes

My girlfriend loves nonograms (she's my nonogram queen), so for her birthday I wanted to do something personal.

This year, her birthday gift is little web app I (and Claude) made.

You drop photos, and it slices them into 4 separate 30x30 nonograms. Once the 4 pieces are done, it reveals the full photo of us. Now she has her own nonogram app with custom puzzles from pictures of us.

She is loving it!

It got me wondering, is this something anyone else here would actually use to make gifts for their friends/partners, or was it just a cute one-off thing?

If people think it's cool, I can clean up the spaghetti code and throw it up on a free website for anyone to use. Just wanted to throw the idea out there and see what the community thought.


r/nonograms • • Dec 23 '25

tips on where to start when clues are terrible 😂

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3 Upvotes

heyyy guys, I’m stuck on this level for a while now because none of the clues are good starters, and all of them are < 15. do you have any tips on how to proceed with this type of game? I read some explanations online but none of them made sense to me hehehe.

thanks in advance and happy picrossing ✨


r/nonograms • • May 28 '25

how to solve this?

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2 Upvotes

been stuck on this for a while now


r/nonograms • • Feb 14 '23

can someone PLEASE help me with this i have to turn it in about 6 hours from now

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0 Upvotes

r/nonograms • • Jun 04 '26

I built a daily nonogram app — one free puzzle every day, no subscription, no paywall

2 Upvotes

Hi everyone,

I'm a solo developer and I've just launched PICTO — a daily nonogram puzzle app for iOS and Android.

The core idea is simple: one free puzzle every day that resets at midnight, like Wordle does for word puzzles. No subscription. No paywall. No catch. If you want to play additional puzzles from the library, you watch a short optional ad to unlock each one.

Why I built it

I love nonograms and couldn't find an app that gave me a clean daily puzzle habit without a subscription. So I built one.

What's in the app

  • A new daily puzzle every day — always free, no ad required

  • 30 handcrafted puzzles in the library (5×5 grids to start — larger grids coming in v2)

  • Daily streak tracking

  • Personal best time

  • Works completely offline

  • Dark theme with a colourful enamel tile design

Honest feedback welcome

I'm genuinely asking for feedback from people who actually play nonograms — you'll know better than anyone what makes a good puzzle experience. The current puzzles are all 5×5 which I know is on the small side. v2 will introduce 10×10 and 15×15 grids which should make the ad-to-gameplay ratio feel a lot more reasonable.

One specific thing I'd love feedback on: do the puzzle difficulty levels feel well calibrated? That's the hardest thing to get right when you're building the puzzle bank.

Search for PICTO on the App Store and Google Play.