新数独 锻炼你的大脑 is an educational and reference app available for iPhone users. This app allows you to experience the beauty of numbers and exercise your brain through the popular puzzle game of Sudoku.

Sudoku is a mathematical game that originated in the 18th century. The objective is to fill a 9x9 grid with numbers, using the given clues as a starting point. Each row, column, and 3x3 subgrid must contain the numbers 1 to 9 without repetition.

The app features several highlights that enhance the gameplay experience. Users can log in to the app's "灵动岛" feature, which allows them to quickly resume their game without opening the app. Additionally, the iOS 14 widget provides a convenient way to preview the game status and start playing.

With over 20,000 Sudoku puzzles to solve, the app offers four difficulty levels suitable for both beginners and experienced players. If you find yourself stuck on a puzzle, you can use hints to help you progress. The app also supports the use of a pencil for tracking possible numbers and automatically updates notes.

The app's interface makes solving puzzles easier by highlighting selected areas and indicating duplicate numbers. It is fully compatible with iPadOS, allowing users to enjoy a brain-stimulating experience on their iPads. Apple Pencil users can take advantage of quick actions by simply tapping their pencil twice.

For users on macOS, the app is optimized for keyboard gameplay. It supports side-by-side and split-screen operations, as well as external keyboards. Dark mode is also available, providing a pleasant gaming experience during nighttime play.

Challenge your brain today with 新数独 锻炼你的大脑 and immerse yourself in the world of Sudoku!