Play sudoku on your apple watch with a twist! numbers are replaced with emojis in this classic puzzle game. - play on your apple watch. great for killing a few spare minutes. - randomly generated puzzles create an endless challenge. - customize your emoji with force touch. find the perfect four for any mood. - time yourself and improve your pace. sudoku is a simple game from japan (just like emojis). your goal is to fill the 4x4 grid so that each column, row, and block contain each emoji only once. tap a cell to change the emoji. force touch at any time to customize the emoji or to restart your game.