Sudoku :)

Sudoku :) is the classic Japanese logic puzzle game with numbers - suitable for all ages and levels. Play easier levels to exercise your brain or challenge yourself with expert/advanced difficulty to give your mind a real workout. Sudoku on mobile is just as good as with a pencil and paper so take your favorite game wherever you go. Train your brain anytime and anywhere with Sudoku :), the classic logic number puzzle game. FREE on Android! Game Features: - Endless Sudoku games in 4 different difficulty settings (Easy, Medium, Hard & Expert). - Highlight duplicates to avoid repeating numbers in a row, column and block. - Unlimited Undo/Redo buttons. - Autosave feature so you can stop and resume the game anytime. - Game Center support for leaderboards and achievements. - Note-taking feature to track possible numbers in grid. - Track quickest completion times from top Sudoku players in Leaderboards. - Useful statistics track progress...