Sudoku Handheld Game
The best puzzle for the mind since the crossword puzzle
The Sudoku Handheld game is the perfect way to flex your brain muscles at home or on vacation. It’s just about the size of your hand so it fits comfortably in a purse or pocket.
It has three difficulty levels, for the novice player to the expert, with each level having millions of different puzzles each.
It keeps track of your solving time so you can challenge yourself each time you play. The hint feature provides an easy way to get unstuck. You can even create your own puzzles or program puzzles from the newspaper for solving later.
Popularity: 2%

I have found out that playing sudoku has helped me become quicker in simple math problems.