Microsoft Sudoku is a free-to-install puzzle game developed by Microsoft Corporation for mobile. This stimulating sudoku game is available to play in two game modes: Classic and Irregular. In Classic mode, you’ll be able to play the usual sudoku game you always love, while the Irregular mode is on a different scale—even though it still contains the same rule. However, the major twist is its blocks are in an irregular shape. Furthermore, it offers daily challenges that consist of three different sudoku game modes—classic, irregular, and ice breaker. Ice breaker mode allows you to place correct numbers that can send shockwaves into your board.