Can I play Sudoku online for free?

Yes. Sudoku Challenges runs in your browser, so you can start a free solo Sudoku puzzle without downloading an app or creating an account.

When do I need an account?

Solo play does not require one. Sign in when you want to save daily times, keep streaks, and appear on leaderboards.

Start with Easy if you are learning, Medium for steady practice, and Hard or Expert when you are comfortable using notes and elimination.

Yes. The board, keypad, notes, hints, and daily challenge are designed for mobile, tablet, and desktop browsers.

Yes. Use Multiplayer to invite a friend with a private link, join with a code, or find a quick match on the same fair board.

每日数独。好友竞赛。一起解题。

完成今日数独，开始连续记录 完成排名数独，明天再来挑战。

成为今天第一个记录用时的人。

个人最佳 —

你的排名 —

单人游戏中等

对手

错误 0

你 81

对手 —

时间 0:00

困难数独

免费在线玩困难数独，使用清晰棋盘、笔记、提示和计时器。

本页提供完整的Sudoku Challenges游戏。请在上方选择模式，无需账户即可开始，需要时可查看下方指南。

立即开始

无需创建账户，打开棋盘即可游戏。

选择难度

可练习简单、中等、困难或专家级。

明天再来

每日挑战每天都会带来一个新目标。

填满 9 × 9 棋盘，使每一行、每一列和每个 3 × 3 宫都恰好包含一次数字 1 到 9。无需计算，只需观察、排除并进行逻辑推理。