2udoku adds a new dimension to Sudoku: it lets you play together with a friend! The two of you will be playing the same Sudoku and your challenge is to be the first one to complete the game.THE FEATURES? Multiplayer Sudoku: you can play it by yourself or with one of your friends.? There are four levels of games to choose from: easy, medium, hard and expert.? All games are high quality, with only one solution.? When playing by yourself, you can pause a game and resume the same game later.? You can invite your friends to join you in a game of 2udoku by searching for them by name, by email address or by Twitter username.? In your contact list you can see whom of your friends is available for a game of 2udoku.? 2udoku lets you determine whether other players can find you by name, by email address or by Twitter username, or not at all.? You can chat with your opponent while you are playing.? 2udoku tracks your scores.ANY QUESTIONS OR COMMENTS?Please contact us, we will be happy to answer any questions you may have in relation to 2udoku.NOTE:An internet connection is required for playing in multiplayer mode.