Sudoku Plus 16x16 is a free Android game developed by PoSheng. It is the most popular logic-based numbers game that supports both phone and pad. The game has three levels - easy, medium, and hard - and offers puzzles in 4x4, 9x9, and 16x16 sizes. The game rule is simple, each number can only appear once in each row, column, grid, and slash.

Sudoku Plus 16x16 has a range of features that make it an outstanding game. The game provides hints to help you complete difficult puzzles, pencil marks, and auto-save options. The game has a sleek design, and the interface is user-friendly. Sudoku Plus 16x16 is an excellent game for those who enjoy a challenge and want to sharpen their logic skills.