Sudoku Killer - Sudoku Game
About the Game
"Sudoku Killer" is a combination of two puzzles "Sudoku" and "Kakuro". Also known as sumsudoku or killerdoku. Outwardly, it is similar to Sudoku, but there are additional areas in which the sum of numbers must equal a given number, as in Kakuro. The game develops logic and mathematical abilities. There are 1500 levels of varying difficulty. There are many settings that will allow you to adapt the game interface to your gaming style. Control is available using mouse, keyboard and touchscreen.
Game Mechanics
Sudoku is a logic‑based number puzzle played on a 9×9 grid, subdivided into nine 3×3 boxes. The goal is to fill every row, column, and 3×3 box with digits from 1 to 9, without repeating any number in the same row, column, or box. The puzzle starts with some cells pre‑filled as clues; you must deduce the remaining numbers through elimination and logic only — no math or guessing required. Core mechanics include pencil marks (noting possible candidates in a cell), single candidates (only one number fits), hidden singles (a number appears only once in a row/column/box), and advanced techniques like pairs, triples, X‑Wing, or coloring for harder puzzles. Difficulty increases with fewer starting clues and more complex deductions needed. Most digital versions offer auto‑check (invalid moves highlighted), undo/redo, hints, and timer or move counter for challenge. Unlike action or word games, Sudoku rewards pattern recognition, working memory, and systematic elimination. The satisfaction comes from the gradual uncovering of the solution and the final "click" when all numbers align. Perfect for players who enjoy calm, focused brain training and pure logical deduction
