Sudoku Cafe, developed by BitMango, is a free puzzle game available on the Android platform. It is a logic-based game in which the player must fill a 9x9 grid with numbers from 1 to 9 without repeating any digits. The game has nine 3x3 subregions, and each of these subregions also contains all the digits from 1 to 9 without any duplicate numbers. The game is designed to test your Sudoku skills and challenge you with different difficulty levels.

The game has five levels: Flash, Easy, Normal, Hard, and Expert. The player has to complete each level successfully before moving on to the next one. If the player makes more than three mistakes, they lose the opportunity to advance to the next level. Sudoku Cafe is a great way to improve your logical thinking and problem-solving skills while having fun.