Killer Sudoku by Sudoku.com

Killer Sudoku offers a fresh twist on the classic number puzzle, blending the familiar grid of Sudoku with the arithmetic challenge of Kakuro. In this game, you fill rows, columns, and 3x3 blocks with digits 1-9, but with an added twist: dotted-line cages require the sum of their numbers to match a given clue. It's a perfect mental workout that sharpens logic and concentration.

Designed for all skill levels, the game provides multiple difficulty settings from easy to expert, ensuring both beginners and seasoned solvers find an engaging challenge. Daily challenges and seasonal events keep the experience rewarding, with opportunities to earn medals and compete for awards. The app also includes helpful features like auto-check, notes, and hints to assist when needed.

Beyond the core gameplay, Killer Sudoku includes convenient tools such as unlimited undo, auto-save, and customizable color themes. Track your progress with detailed statistics, and enjoy a seamless experience on most phones and tablets. Whether you're a Sudoku fan or new to number puzzles, this game promises endless fun and brain training.