One of the most popular variants of Sudoku, which adds clues based on the addition of values in group of cells (
Sites 7
- Daily Killer Sudoku Daily killer and greater-than killer sudoku puzzles that can be played online or printed.
- Killer Sudoku Online Two new killer sudokus each day, solvable online. Also two "greater than" sudoku puzzles, and a "greater than" killer sudoku.
- Killer Sudoku Puzzles by Krazydad Many free printable Killer Sudoku puzzles.
- Daily printable Killer Sudoku One printable Killer Sudoku every day.
- Killer Sudoku Comprehensive site with Killer Sudoku puzzles, variants, and solving strategies.
- Killer Sudoku Solver A daily online Killer Sudoku puzzle, as well as a step-by-step online solver with strategy descriptions.
- Killer Sudoku Two new Killer Sudoku puzzles every day, solvable online.