Chess Sudoku: Asterisk, Kropki

SDK Puzzle Games

Contains adsIn-app purchases

About this game

Chess Sudoku: Asterisk, Kropki – Classic Logic Meets Variant Challenges

Explore a wide range of Sudoku puzzles on Android! Whether you’re a Sudoku veteran or a curious puzzle solver, this app offers hundreds of classic and variant Sudoku puzzles. Play Chess Sudoku, King Sudoku, Queen Sudoku, Knight Sudoku, Asterisk Sudoku, Kropki Sudoku, and more—each puzzle brings a unique logic challenge.

CHESS SUDOKU – Logic Meets the Chessboard
Sudoku puzzles inspired by chess piece movements introduce new rules:

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

Chess Sudoku combines logic, pattern recognition, and strategic thinking, offering a fresh challenge for chess enthusiasts and Sudoku fans alike.

EXTRA REGION SUDOKU – Beyond the Classic Grid
Traditional 9x9 Sudoku receives exciting twists with overlapping regions and hidden structures:

• Asterisk Sudoku – A cross-shaped region overlays the grid. All 9 asterisk-marked cells contain digits 1–9 exactly once.
• Center-Dot Sudoku – Central cells in each 3x3 box form a new region with no repeated numbers.
• Girandola Sudoku –Spiral or pinwheel-shaped regions stretch across the grid, creating dynamic logic challenges.

These variants are ideal for players looking for puzzles beyond classic Sudoku.

KROPKI SUDOKU – Logic and Math Combined
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.

Kropki Sudoku blends logic and arithmetic, offering a satisfying challenge for number-focused solvers.

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

COMING SOON
We are adding new Sudoku variants and features, including:

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

OPTIMIZED FOR SUDOKU FANS
Whether you enjoy Chess Sudoku, King Sudoku, Queen Sudoku, Knight Sudoku, Asterisk Sudoku, Kropki Sudoku, or classic Sudoku, this app offers a complete Sudoku experience on Android. Suitable for casual solvers and puzzle enthusiasts alike.

Challenge your mind with a variety of logic puzzles—from chess-inspired 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