Brain Age Express: Sudoku

Solve a variety of sudoku puzzles in three different skill levels in
this sudoku-focused version of Brain Age.
Sudoku takes center
stage in this edition of the popular Brain Age series. Solve a variety
of puzzles in three different skill levels using the Touch Screen and an
intuitive interface. You'll effectively work your brain, but you'll be
having enough fun that you won't even realize it. Never fear though: you
can always track your progress by completing three tests and finding out
your Brain Age. The unique charm of the Brain Age series and the
challenge of sudoku make for an enjoyable combination. Prepare for
another round of training your brain in minutes a day!