Killer Sudoku Rules
Load a new Killer Sudoku puzzle and start solving.
- Sudokus available
Difficulty
Easy, Normal
Variant
Classic + Killer
Presets
para guardar tus modos de juego favoritos
- Sudokus available
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Load a new Killer Sudoku puzzle and start solving.
Killer Sudoku completion rate
74%
Available Killer Sudoku difficulty levels
4
Killer Sudoku games played today
0
New Killer Sudoku puzzles this week
0
Use Academy when you want examples of how Killer Sudoku works before jumping into a puzzle.
Total Sudoku games played
1,600+
Available Sudoku variants
22
Playable Sudoku pages
4M+
Sudoku Academy lessons
3+
The timer tracks how long your solve takes. Some players use it to measure progress, compare attempts or simply see how quickly they can complete a puzzle.
Yes. Clear marks removes notes and visual markings when the grid becomes crowded, helping you reorganize your thinking without resetting the puzzle.
No. Notes are optional. Some players rely on them heavily, while others prefer solving directly from the information already visible in the grid.
Sudoku variants keep the familiar Sudoku grid but introduce an extra rule. That extra rule might involve sums, lines, diagonals, outside clues or special regions, creating a different solving experience.
Yes. Most Sudoku variants still rely on the same row, column and box logic used in Classic Sudoku. The extra rule changes the puzzle, but the core solving skills remain valuable.