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