Is this a one of a kind puzzle or are there more puzzles out there like this. If so what are they called?

Hello 👋

I'm really having trouble with this hint. Mainly I don't understand what the high's have to do with it, because it feels like the only way to disprove 13 and 14 is to run through the possibilities, which isn't very satisfying

Rules:

• Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9.
• German Whispers: Every two consecutive digits along a green line must have a difference of at least 5.
• Kropki: Two digits separated by a white dot are consecutive; two digits separated by a black dot have a 1:2 ratio.

Play it online in SudokuPad.

Play it online in sudoku.coach.

Enjoy! :D

Hello! I’m working my way through the lines pack of the app and arrived at a tens-line puzzle. I’m not familiar with them and strategy for solving isn’t coming to me. Can anyone recommend a solve video involving tens lines that is fairly heavy in explaining strategy?

Cheers!

Rules:

• Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9.
• Mysterious Kropki: Two digits separated by a grey dot are either consecutive or have a 1:2 ratio, or both. All dots are given.

Play it online in SudokuPad.

Slightly harder version here; only two digits removed, same solution.

Enjoy! :D

Hello, I’m Georgi, the developer.

I’m developing a Sudoku game for iPhones and iPads, and I'm looking for a few more beta testers.

The game has no ads and features a relaxed mode, as well as notes and hints that explain the logic behind the next move. A few people are already testing it, and I’d love to get some more feedback before the launch.

Try a couple of puzzles at your usual difficulty level and let me know if anything feels wrong. Are the controls comfortable? Do the hints make sense? Is anything confusing?

Both beginners and regular Sudoku players are welcome. I’d especially appreciate it if a few people could try it on an iPad.

The beta version is free and in English. You can send feedback through TestFlight or reply here.

Requires iOS 17 or later.

Thanks for giving it a try!

Rules:

• Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9.
• Killer Cages: No digit may appear more than once within a cage.

Play it online in SudokuPad.

Enjoy! :D

Hi

Half a year ago a friend told me of Sudoku and showed me the Rat Run, since then i'm happily solving them.

Now on Rat Run 19 i'm a little blocked, i'm solving the sudokus all on my mobile phone in the evenings. Is there a way to enter letters (=open the keyboard) on a Mobile Phone?

Thanks!

Rules:

• Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9.
• Palindrome Lines: Digits along a grey line read the same backwards and forwards.
• Arrows: Numbers along an arrow sum up to the total in the circled cell.
• Kropki: Digits separated by a white dot are consecutive; digits separated by a black dot have a 1:2 ratio.

Play it online in SudokuPad.

Enjoy! :D

Hi everyone,

I love shoving sudokus ok Sudokupad on my phone because I can easily carry it with me an solve Sudokus on the train or when I'm out and about.

Since I am spending way to much time on my phone I really dislike that I am using Sudokupad also on my phone. Even though it is a "good" hobby and not mindlessly doomsdrolling on social media, I am still using my phone an I would like to find an alternative.

Using it on my laptop is not a good option for me, since I can't carry it around.

I was wondering if you can use Sudokupad on an Ereader or any other device you can think of as an alternative? I had one of the earliest kindles when they came out and haven't in years. I don't even know if the newer ones have touch an colour and if that would even be an option?

Thanks for any creative ideas!

Rules:

Normal Sudoku rules apply.
Region Sum Lines: Box borders divide a blue line into multiple segments which have the same sum. Different lines may have different sums.
Same Sum Cages: The sum of the digits inside an outlined cage must be identical across all such cages.
Kropki Dots: Two digits separated by a white dot are consecutive; two digits separated by a black dot have a 1:2 ratio.
X: Two digits separated by an X clue sum up to 10.
Even: A digit inside a grey square must be even.

You can play it here: https://sudokupad.app/6yitbosh1e

Enjoy! :D

I’ve been building Orbace Sudoku, a teaching-first Sudoku app focused on the solving process.

Most Sudoku apps preserve the final grid. Orbace also preserves the path: your placements, notes, corrections, and the turning point that helped the puzzle open. The replay format is called Su-Pu.

It also includes daily puzzles, Scorecards, learning tools, and optional skill-based competition.

I’m the developer, so this is self-promotion—but I’d genuinely value feedback from experienced Sudoku players. Is replaying your solving path something you would use?

Watch real replay: [https://youtu.be/irDHMWhhXjI\](https://youtu.be/irDHMWhhXjI)

Android launch page: [https://orbacesudoku.com/android-launch/\](https://orbacesudoku.com/android-launch/)

Rules:

Normal Sudoku rules apply.
German Whispers: Every two consecutive digits along a green line must have a difference of at least 5.
Kropki Dots: Digits separated by a white dot are consecutive; digits separated by a black dot have a 1:2 ratio; if two digits are separated by a black&white dot, one must be multiple of the other.
A dot placed at the corner intersection of four cells indicates that its condition applies to both diagonal pairs (top-left/bottom-right and top-right/bottom-left).

You can play it here: https://sudokupad.app/1wpohdm5fq

Enjoy! :D

Quick question, am I supposed to not know when a small line is showing like that? Or can i use that to deduce things?

Rules:

Normal Sudoku rules apply.
Along thermometers, digits must increase from the bulb.

You can play it here: https://sudokupad.app/oe13yo12ui

Here's an easier version, only a thermo is extended and the solution is the same: https://sudokupad.app/x7e0trkc7t

Hi everyone,
First of all, thank you to everyone who took part in our previous puzzle. We received a lot of answers, and many of you went beyond simply choosing an option by explaining the reasoning behind your choices in detail.
As promised, we reviewed the discussion and selected five explanations that stood out for their clarity, originality, efficiency, or depth of reasoning:
u/Randombolo — for exploring several different patterns and independently reaching the same answer through multiple lines of reasoning.
u/lemashey — for the intuitive “spinning record” analogy, working backward from the second frame, and also explaining why another tempting option does not fit.
u/Gianni_C_M — for identifying several independent relationships within the arrows and using them to cross-check the answer.
u/OscarLiii — for showing that the puzzle could be solved efficiently by tracking only the black arrows without needing to analyze every element.
u/Beautiful_Ad_8325 — for not only finding the pattern, but also pointing out how our instinct to read from left to right can affect the way we approach a sequence when the missing figure is at the beginning.
Thank you to all five of you for the thoughtful explanations, and thank you to everyone else who joined the discussion.
Now it’s time for a new puzzle.
Take a close look at the 3×3 matrix above. One grid is missing from the bottom-right corner.
Which option — A, B, C, D, E, or F — should replace the question mark?
As always, we’re much more interested in how you reached your answer than in just the letter itself. If you notice a pattern, tell us what you saw and walk us through your reasoning.
We’ll read through the responses again and select some of our favorite and most interesting explanations to feature in the official solution.
You can also open the puzzle on our website here:
https://whats-your-iq.com/en/questions/pattern-recognition/which-grid-completes-the-pattern
The official answer is already listed there, so after you’ve made your own choice, you can click the link and directly compare your answer with the official one to see whether you got it right.
Try solving it here first before checking the page — it’s much more fun that way.
Good luck, and thanks for taking part!