The original Sudoku was originally developed for the Japanese version of the game, called Mahjong, back in the early 1900's. In recent years it has become popular in the U.S. and Canada to play Sudoku online. Sudoku is a simple game of solving crossword puzzles by making a grid on which you place the letters. In the game, each letter represents a number. You have to make certain that you place the correct numbers in your grid, otherwise you won't be able to move on to the next puzzle.
Since the game is so simple and straightforward, it is easy for even the youngest of players to play it without a lot of training. For many people, they are attracted to the fact that this type of puzzle is also fun and can be done from the comfort of their own home. However, as most Sudoku games are played against a computer, they need to have a strong Internet connection and high-speed internet speed. However, a good phone or tablet will allow the player to play the game without being concerned about a slow connection.
Sudoku Portable on the other hand is a portable implementation of the classic game Sudoku, packaged as an easy to use portable app, meaning you can play it anywhere and at any time. It has multiple difficulty settings and an integrated solver so all Sudoku puzzles have a single solution. It is compatible with iPhones and iPad and the instructions are even available in the app. The app can be downloaded for free from the iTunes store and then installed. There is no need to buy the application as there is no charge to use it.