Killer Sudoku – Sudoku Puzzles

Killer Sudoku is a free, offline, and fully-featured logical reasoning number puzzle game that is perfect for anyone who loves classic Sudoku or is looking for a challenging maths puzzle. The game combines elements of Sudoku, Sumdoku, Kenken, Addoku, Kakuro, etc., and offers 10,000+ Killer Sudoku puzzles with 4 difficulty levels ranging from Easy to Extreme.

The objective of the game is to fill all rows, columns, and 3×3 blocks with numbers 1-9, ensuring the sum of numbers in each cage is equal to the number in the upper left corner of the cage. The sum of all numbers in each 3×3 block, row, or column always equals 45, and numbers cannot repeat within cages, a single row, column, or 3×3 region.

Killer Sudoku has an intuitive interface, easy control, clear layout, and well-balanced difficulty levels for novice and advanced players. The app also offers daily challenges, tracker, auto-solver, notes, eraser, unlimited undo option, achievements and leaderboards, statistics, multiple different themes and helper features. Enjoy the game and improve your logical reasoning and memory skills.