Killer Sudoku

Killer Sudoku, also known as Sumoku or Addoku, is a compelling puzzle app that ingeniously blends classic sudoku with elements of kakuro. The app challenges you to fill a grid with numbers from 1 to 9 while adhering to specific rules: each row, column, nonet (3x3 segment of the grid), and cage must contain each number exactly once, and the sum of the numbers in each cage must equate to the small number shown in its corner. No number may appear more than once within any given cage, adding an interesting twist to the traditional sudoku puzzle.

Whether you’re new to sudoku or an expert puzzle solver, the game offers a range of difficulty levels, from easy puzzles that help you get your feet wet to extremely hard challenges that could take hours to resolve. This range makes it suitable for players at any skill level, allowing progressive mastery in problem-solving and mental arithmetic.

Additionally, its design includes an intuitive, user-friendly interface that features minimal advertising for an uncluttered experience, automatic progress saving, and an undo function for those more challenging puzzles. For enhanced readability, it allows highlighting of selected numbers, and for advanced solvers, it includes functions like automatic conflict elimination and remarking tools.

Designed to be lightweight and efficient, it ensures minimal power usage and includes conveniences like a dark mode for nighttime play. New puzzles are available daily, providing endless content for avid puzzlers eager for a daily challenge. Start playing now on your Android device for a brainstorming session that blends fun with intellectual rigor.