Sudoku Medium Website Privacy Policy
This platform focuses on providing users with free online Sudoku puzzles, multi-difficulty question bank practice, game progress saving, and other leisure and puzzle services. We place great importance on the personal information security and privacy rights of every user. To clearly explain the platform’s rules for collecting, using, storing, and protecting information, this privacy policy is hereby formulated. Accessing, browsing, and using all functions of this platform implies that you have voluntarily read, understood, and accepted all terms of this policy.
1. Principles and scope of data collection
This platform strictly adheres to the principle of collecting only the minimum necessary and not collecting unnecessary data, only collecting data necessary to ensure the normal operation of the game, and never stealing users’ private information without authorization.
Passively collected network data: During user access to the platform, the system automatically records anonymous information such as network access IP, device operating system, browsing terminal type, access time, and page dwell data, which is used for stable operation and maintenance of platform servers, network security monitoring, and troubleshooting.
User voluntary data submission: All information voluntarily submitted by users such as display nicknames, feedback, issue reports, and feature suggestions is voluntarily filled in, with no mandatory entry requirements.
Local game data retention: The platform uses local storage technology to automatically save personalized settings such as user practice progress, frequently used game difficulty, and challenge history, making it convenient for users to continue playing. Users can delete data at any time through browser settings.
2. Data usage standards
All collected data is solely for platform service optimization and functional operation, and will never be diverted for commercial resale or other unrelated purposes. The specific uses are as follows:
Core features such as Sudoku game progress saving, history retention, and difficulty preference memory are implemented to enhance the user gaming experience.
Receive and process user feedback and suggestions, optimizing the question bank content, page layout, and interactive user experience accordingly.
Collect anonymous play data, analyze user habits, continuously update the question bank, and optimize game adaptability.
Identify violations such as abnormal access, malicious data brushing, and crawler crawling to ensure smooth and secure platform operation.
3. Data Sharing and Disclosure Rules
Without the user’s explicit consent, this platform strictly prohibits disclose, sell, rent, or transfer user personal data to any third-party institution or individual.
If national laws, regulations, judicial authorities, or regulatory authorities require data to be provided according to law, we will cooperate in providing the corresponding information in accordance with regulations.
Platform partner technical service providers can only access the overall data that is anonymized and anonymously aggregated, and cannot query or locate any personal information of individual users.
4. Data Security Protection Mechanism
The platform uses industry-standard security protection technologies and management standards to safeguard user data, encrypts backend data, and regularly conducts security checks and vulnerability fixes to minimize risks of data leakage, loss, and tampering. At the same time, given the inherent security risks in the internet network environment, we cannot guarantee absolute and 100% data security protection.
5. User Privacy Management Rights
Users have the right to independently view, modify, and clear their personal display information and game history.
Users can independently turn off and clear the browser’s local cache and game data, managing privacy permissions independently.
Users can report privacy-related requests at any time through official channels and request deletion of personal retained data.
6. Protection of minors’ privacy
This platform is a free leisure and educational tool platform and does not specifically collect or request minors’ personal privacy information. Minors using the platform’s game services must be guided and supervised by their parents or legal guardians. If we accidentally obtain minors’ private data, we will delete it completely and immediately upon discovery.
7. Third-Party Backlink Disclaimer
This platform page may contain third-party partner websites, resource links, and other redirect links. All external platforms have independent privacy policies and service rules. Their information processing is unrelated to this platform, and we bear no joint responsibility. Users may independently verify and access them.
8.Policy Update and Effective Explanation
We reserve the right to optimize and revise this privacy policy in accordance with updates in laws and regulations, platform function upgrades, and operational needs. The revised policy will be announced on the platform page and will take effect immediately upon publication. By continuously using the platform’s services, users are deemed to have accepted the latest version of the privacy policy by default.
9. Consultation and feedback channels
If you have any questions, suggestions, or rights protection requests regarding this privacy policy, you may contact us via the following email address:
Contact email: [email protected]
Last updated: 2026.6.6