Sudoku: Brain-teaser is a free-to-play logic-based combinatorial number puzzle game for Android users. The objective of the game is to fill a 9x9 grid with digits in such a way that each column, each row, and each of the nine 3x3 sub-grids contains all the digits from 1 to 9.

With 4 different difficulty levels and over 1000 brain-teasing puzzles, Sudoku: Brain-teaser is the perfect game to improve your skills and learn this classic puzzle game. The game has an intuitive interface and smooth controls, making it easy to play on both phones and tablets. Additionally, the game features pencil marks (notes), automatic error detection, and a clean interface.