Last Updated: January 15, 2025
Acceptance of Terms
By using this Service, you agree to be bound by these Terms of Service. If you do not agree to these Terms, please do not use the Service.
Service Description
Blindfold Chess ("the Service") is a free web application designed to assist with blindfold chess practice. The Service aims to improve chess visualization skills and calculation abilities.
Data Handling (Important)
Data stored in this Service is volatile.
The Service stores game data and settings in your browser's local storage. This data is not persisted on a server-side database, but exists only in your device's browser. Therefore, data may be lost in the following situations:
- When you clear your browser's browsing history or site data
- When you uninstall or reinstall your browser
- When storage capacity limits are exceeded
- During browser updates or due to browser issues
- When the Service changes data storage methods or specifications
Please use this Service as a temporary practice environment for blindfold chess. We recommend backing up important data separately. Additionally, data synchronization across devices is not provided.
User Responsibilities
When using the Service, please understand the following:
- Use of the Service is at your own risk
- Equipment, software, and communication costs necessary for internet connection are your responsibility
- You are responsible for properly managing browser settings and device management
Prohibited Activities
The following activities are prohibited when using the Service:
- Activities that interfere with the operation of the Service
- Activities that place excessive load on the Service
- Exploring or exploiting vulnerabilities in the Service
- Other activities that violate laws or public order and morals
Intellectual Property
Intellectual property rights in content, designs, logos, software, etc. included in the Service belong to the operator or licensors. Users may not reproduce, reprint, or modify these without permission.
Disclaimer
The operator assumes no responsibility for:
- Damages arising from use of the Service
- Damages arising from interruption, suspension, termination, or changes to the Service
- Damages arising from loss of user data
Limitation of Liability
The Service is provided "as is." The operator makes no warranties regarding the completeness, accuracy, usefulness, safety, etc. of the Service.
Service Changes and Termination
The operator may change the content of the Service or terminate provision of the Service without prior notice to users.
Suspension of Use
The operator may suspend a user's use of the Service without prior notice if the user violates these Terms.
Governing Law
These Terms shall be governed by and construed in accordance with Japanese law.
Changes to Terms
The operator may change these Terms of Service as necessary. Changed Terms will take effect from the time they are posted on this page.