Chess Sudoku: Asterisk, Kropki

Let's solve the best and free Chess Sudoku Puzzles: King, Queen, Knight Sudoku.

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!