🧩 Sudoku Puzzle

Free online Sudoku puzzle generator. Generate puzzles at easy, medium, and hard difficulty levels. Features instant validation, hints, and printable mode. Perfect for Sudoku lovers and brain training.

Difficulty

Select Number

Click New Game to start

How to Use the Sudoku Puzzle

Validate your content with the Sudoku Puzzle in three steps:

Enter Content to Validate
Type, paste, or upload the content you want to validate into the input area. The tool accepts direct text input and file upload for batch processing.
Run Validation
Click the "Validate" or "Check" button to analyze your content. The tool performs a thorough check and provides detailed feedback, including error locations and suggested fixes.
Review Results
View the validation results, including any errors, warnings, or success messages. If errors are found, the tool highlights their exact location to help you fix them quickly.

FAQ

数独的规则是什么？

数独是一种逻辑填数字游戏。游戏盘由9×9的格子组成，分为9个3×3的宫。目标是在每行、每列和每个宫中填入1-9的数字，且不能重复。谜题提供了一些初始数字作为线索。

不同难度有什么区别？

简单难度提供较多初始数字（约36-40个），适合初学者。中等难度初始数字较少（约30-35个），需要更多推理。困难难度初始数字最少（约25-30个），需要高级解题技巧。

可以打印吗？

可以。点击'打印'按钮可以直接打印当前谜题。打印版本会隐藏答案和提示，只显示谜题和初始数字，方便你在纸上解题。

提示功能怎么用？

点击'提示'按钮会在当前选中的格子中填入一个正确数字。每道题提供最多3次提示，帮助你继续解题而不破坏游戏体验。