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.

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