Sudoku for Google Chrome is an innovative and fully featured sudoku game with the following features:

  1. Hundreds of thousands of puzzles, so you will never run out of puzzles!
  2. Four levels of difficulty.  Easy to approach for beginners.  Challenging for sudoku experts.
  3. Note taking -- take notes in the cells to help you figure out the puzzles.
  4. Hints mode -- if you are just starting out, you can have the game show you which values are possible in each cell.
  5. Keyboard interactions -- you can play the game completely with the keyboard -- keep your times low!