Cracking the Cryptic

In-app purchases
4.1
836 reviews
50K+
Downloads
Content rating
Everyone
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About this game

Line Sudoku

Line Sudoku is a pack devoted to sudokus involving… LINES! Each puzzle features one or more of the popular “lines constraints” that often feature in variant puzzles on Cracking The Cryptic, including Renban, German Whispers, Palindromes, Region Sum and Ten Lines!

We’re thrilled that Line Sudoku includes puzzles by Phistomefel, Qodec, Clover, zetamath, Jay Dyer, Tallcat, Mr Menace, Peter Veenis, Joseph Nehme, Richard Stolk, Prasanna Seshadri, Tyrgannus and Full Deck & Missing A Few Cards! In addition, Mark and Simon have written hints for the challenging puzzles themselves so these hints are meaningful and, above all, educational.

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Welcome to the brand new Sudoku app from the most popular Sudoku channel, Cracking The Cryptic.

Unlike other Sudoku apps, we feature handcrafted and curated puzzles from the world’s best Sudoku constructors. Each collection features puzzles made by various authors that are now familiar names to those who follow the channel. Authors like Phistomefel, Clover, Sam Cappleman-Lynes, Christoph Seeliger, Richard Stolk, jovi_al, Qodec, Prasanna Seshadri and of course, Simon and Mark!

Downloading Cracking the Cryptic will give you access to our two launch packs. Our first free collection is a variety pack by Prasanna Seshadri featuring 7 puzzles inspired from our previous Sudoku apps; Sandwich, Classic, Chess, Thermo, Miracle, Killer and Arrow Sudoku. Our first paid collection is Domino Sudoku, a new variant not featured in our previous apps with puzzles from our amazing constructors.

We’ll be releasing more free and paid packs in the future so keep an eye on the app for more Sudoku content from Cracking The Cryptic!

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Domino Sudoku

Domino Sudoku is named after its domino-like appearance with X's, V's, white dots and black dots placed between cells on the grid. Each puzzle features one or more of these domino types with them all having a different effect: an X means digits in the two cells in the domino must sum to 10; a V means they sum to 5; a white dot means the digits are consecutive; and, finally, a black dot means the digits must be in a 1:2 ratio (ie one of the digits must be double the other).

As you can imagine, when you allow the world’s best Sudoku makers to use these rules they are in their element and they’ve made another set of masterpieces for this collection with a huge amount of variety! We’re thrilled that Domino Sudoku includes puzzles by Christoph Seeliger, Sam Cappleman-Lynes, Richard Stolk, Prasanna Seshadri, Phistomefel, Qodec, Clover and jovi_al. In addition, Mark and Simon have written hints for the challenging puzzles themselves so these hints are meaningful and, above all, educational.

As a bonus, Studio Goya has curated 10 generated beginner puzzles so that players of all skill levels can enjoy Domino Sudoku!

In Cracking The Cryptic’s games, players start with zero stars and earn stars by solving puzzles. The more puzzles you solve, the more stars you earn and the more puzzles you get to play. Only the most dedicated (and cleverest) sudoku players will finish all the puzzles. Of course the difficulty is carefully calibrated to ensure lots of puzzles at every level (from easy through to extreme).

So do join us as we continue to try to revolutionize Sudoku app genre.
Updated on
Apr 3, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.1
768 reviews
Dan Newt
February 8, 2025
Very nice collections of fun variant Sudokus. Just a few annoyances that prevent it from being 5 stars: No way to autofill cells with candidates; you have to select them all, click 1-9, and then eliminate conflicts. Placing a number in a blank cell eliminates conflicts, but givens don't. Harder puzzles are locked until you solve enough easier ones. As someone who already plays medium to hard variants, the easier ones can be tedious (see also above issue with autofill). Battery usage. No more chr
1 person found this review helpful
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Ricardo Ribeiro
November 19, 2024
The app is very good for it's purpose, which is sudoku solving. There is a good level of customization to adapt to your personal preferences. A minor annoyance is that some colored cells may be hard to see with cell selection. The biggest thing that developers should look into is battery drain. I get that the screen is always on but it drains battery very quickly.
1 person found this review helpful
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Andrew Blackburn
January 10, 2025
Love the game, but the lag in the menu is getting pretty long, once you've got a lot of puzzles completed. Also, don't know where else to leave feedback, but some puzzles aren't communicating all of the logic needed. For example, Fog #32 appears to have an anti-knight restriction (see Hint #5 needing it and it being stated explicitly in the final hint), but it's not listed in the rules. *EDIT* Has been corrected.
4 people found this review helpful
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What’s new

5 more Fog puzzles!