Killer Sudoku is a game based on our most requested variant. It's a variant that adds extra information to the puzzles that makes them more interesting and challenging to solve. The puzzles in Killer Sudoku have all been designed by the same team that created the puzzles in our other games. 

The Killer Sudoku is not the same as our other games. You will also find hints throughout the game. The hints are written in a very special way so the host and the players can read them.