Chess Sudoku: Asterisk, Kropki

SDK Puzzle Games

Contains adsIn-app purchases

About this game

Welcome to the Chess Sudoku: Asterisk, Kropki – Classic Logic Meets Bold Variants

Get ready to explore the most advanced and diverse Sudoku app on Android! Whether you’re a seasoned Sudoku solver or a curious puzzle explorer, this app is your new go-to destination for endless brain training. Featuring classic and cutting-edge variants like Chess Sudoku, Extra Region Sudoku, and Kropki Sudoku, every puzzle is a new adventure!

CHESS SUDOKU – Logic Meets the Chessboard
Put your skills to the test with Sudoku puzzles inspired by chess piece movements. These exciting variants add new rules based on how chess pieces move and interact:

• King Sudoku – Numbers can’t repeat in any cell a King can attack.
• Queen Sudoku – Each number must not appear in the path of a Queen.
• Knight Sudoku – Avoid placing duplicate numbers in Knight-move positions.

With Chess Sudoku, you get a powerful blend of logic, pattern recognition, and strategic depth. A must-play for chess lovers and Sudoku veterans.

EXTRA REGION SUDOKU – Break the Box Boundaries
Traditional 9x9 Sudoku gets an exciting twist with overlapping regions and hidden structures that add new layers of logic:

• Asterisk Sudoku – A cross-shaped region overlays the grid. All 9 asterisk-marked cells must contain digits 1–9 exactly once.
• Center-Dot Sudoku – The central cell of each 3x3 box forms a new region with no repeated digits.
• Girandola Sudoku – A spiral or pinwheel-shaped region stretches across the grid, creating a visually dynamic and logical challenge.

These variants are perfect for players who have mastered classic Sudoku and want a new level of difficulty.

KROPKI SUDOKU – Connected by Logic and Math
Explore numeric relationships in Kropki Sudoku, where dots between cells indicate special conditions:

• Black Dot – Adjacent numbers are in a 1:2 ratio (e.g., 2 and 4).
• White Dot – Adjacent numbers differ by 1 (e.g., 5 and 6).
• No Dot – No specific relationship applies.

This elegant mode blends logic and arithmetic, making it a favorite for players who love number theory and deduction.

FEATURES
• Hundreds of handcrafted puzzles across all variants
• Clean, minimalist interface with dark/light themes
• Full offline play – enjoy puzzles anytime, anywhere
• Built-in notes, hints, and undo/redo support
• Step-by-step tutorials for every Sudoku type
• Track your progress and unlock increasing difficulties
• Daily challenges and regular puzzle updates

COMING SOON
We’re constantly expanding with new Sudoku types and features! Upcoming modes include:

• Thermo Sudoku
• Diagonal Sudoku
• Arrow Sudoku
• XV Sudoku
• Hybrid rule combinations and more

OPTIMIZED FOR SUDOKU FANS
Whether you're looking for Chess Sudoku, King Sudoku, Queen Sudoku, Knight Sudoku, Asterisk Sudoku, or Kropki Sudoku, you've found the most complete Sudoku app on Android. Perfect for both casual solvers and puzzle enthusiasts!

Download now and challenge your mind with the most innovative Sudoku variants ever created. Explore new logic dimensions—from chess movements to hidden regions and mathematical patterns!

Ratings and reviews

While the concept is nice, several of the games (for an obvious one, take a look at the first 'baubles' game for Queen Sudoku) start off with numbers in places that break the rules of the game. Some of the puzzles are simply unsolvable. They have an auto-generated feel to them, and thus don't have much about logical riddles. The features are nice, if the bugs are worked out, I'd be happy to revise my rating.

Pretty good, missing some key features! Missing the ability to resume a puzzle, exited out of the game once and lost a 30 minute puzzle, also missing the ability to chose difficulty and the option to remove the shading (when you click on a number it shows the canceled squares, I would to disable that) but there's no option for it. Besides that, its pretty good 4/5 cuz missing what I feel are key features Update! They added i difficulty choice! Adding to just making the app better once again!

It was a great app but recently I've been experiencing problems where I can't check the puzzle for mistakes and the puzzle won't finish if I completed it. Another problem is I keep getting the same sudokus. If these problems are fixed this is a 5 star app.

What’s new

Old but gold! We added Classic Sudoku—your chill pill when the wild variants break your brain